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An interpretable attention-guided generative adversarial network framework with dual-domain learning for multi-condition constrained sedimentary facies modeling 认领 引用 被引量：2
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作者 Lei Liu Wei Li +7 位作者 Jian Gao Da-Li Yue De-Gang Wu Wu-Rong Wang Jin Lin Zhi-Bo Li Qian Zhong Jia-Gen Hou 《Petroleum Science》 SCIE EI CAS CSCD 2026年第4期1754-1772,共19页
Sedimentary facies modeling is a critical approach for understanding geological phenomena,yet the strong heterogeneity of reservoir systems poses a serious challenge for their refined characterization.In this study,we... Sedimentary facies modeling is a critical approach for understanding geological phenomena,yet the strong heterogeneity of reservoir systems poses a serious challenge for their refined characterization.In this study,we innovatively propose an interpretable attention-guided generative adversarial network framework with dual-domain learning,which achieves precise sedimentary facies modeling under the constraints of well facies and soft probability data.Specifically,we first effectively extract and preserve prior information of sedimentary facies models from both spatial and frequency domain perspectives.Then,during simulation,to enhance the capability of the network model for finely characterizing complex heterogeneous models,cross-spatial attention mechanisms are designed to effectively capture short-range and long-range dependencies between multi-scale pattern features.Additionally,through systematic feature map visualization analysis,we elucidate the processes of conditional fitting and complex sedimentary facies model reconstruction,intuitively demonstrating the functional mechanisms of each module.Finally,systematic experiments are conducted on multiple datasets to validate the effectiveness of the proposed method.The results demonstrate that the generated sedimentary facies models exhibit high consistency with training datasets in terms of visual realism and statistical indicators.Quantitative comparisons reveal remarkable performance of the method,achieving low Wasserstein distance(0.09),Kernel Inception Distance(0.0017)and Kernel Maximum Mean Discrepancy(0.21).These findings further confirm the high realism of the generated realizations regarding pattern features.This study offers a reliable and practical method for geological reservoir modeling,thereby advancing quantitative,precise geological research with broad application prospects. 展开更多
关键词 Sedimentary facies models Attention-guided generative adversarial network Interpretable framework Sedimentary patterns Multi-condition modeling
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Solvent-regulated mesoporous terbium-perylenetetracarboxylate metal organic framework with enhanced electrochemiluminescence for ultrasensitive cTnⅠbioanalysis 认领 引用 被引量：1
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作者 Li Song Shuchun Bu +4 位作者 Yilan Ding Pu Zhang Ya-Qin Chai Yingzi Fu Ruo Yuan 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第5期548-552,共5页
The typical organic perylenetetracarboxylate(PTC)luminophore suffers from limited bio-application due to its aggregation-caused quenching(ACQ)induced undesirable electrochemiluminescence(ECL)efficiency in aqueous solu... The typical organic perylenetetracarboxylate(PTC)luminophore suffers from limited bio-application due to its aggregation-caused quenching(ACQ)induced undesirable electrochemiluminescence(ECL)efficiency in aqueous solution.Herein,the ECL emission of PTC was highly improved through the ingenious coordination of PTC(ligand)with Tb3+(metal ion)to prepare the Tb-PTC metal-organic framework(TbPTC MOF),which prevented theπ-πstacking and the aggregation of PTC molecules in a homogeneous phase.Moreover,we found that the ECL emission of Tb-PTC MOF was further enhanced by regulating its morphology,pore size and electron transfer ability using different solvents during its synthesis procedure.Notably,under the mixture of DMF,Et OH,and H2O(v/v/v,1:1:1),a mesoporous Tb-PTC MOF exhibited an outstanding ECL intensity,which may be attributed to two reasons.Firstly,the mesopore and rough surface of Tb-PTC MOF(luminophore)provided abundant active sites and enlarged contact surfaces for S2O82–(coreactant).Secondly,Tb-PTC MOF with higher electron transfer ability could accelerate electron/hole recombination to enhance its ECL emission.Additionally,Tb-PTC MOF with excellent ECL performance was applied as a luminophore to fabricate an ultrasensitive ECL immunosensor for cardiac troponinⅠ(cTnⅠ)detection,related to acute myocardial infarction.The constructed ECL immunosensor exhibited a satisfactory linear range(1 fg/m L-20 ng/mL)and a low detection limit of 0.48 fg/m L.This study provides a new trend for the preparation of PTC-based nanomaterials with highly efficient ECL performance,broadening the scope for sensitive immunoassay in disease diagnosis. 展开更多
关键词 Electrochemiluminescence Metal organic framework Coordination-enhanced ECL Solvent regulation Cardiac troponin I
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Dual-Signal Colorimetric/Fluorescent Detection of Vibrio parahaemolyticus in Seafood Using a Multifunctional Aptamer-Conjugated Magnetic Covalent Organic Framework-CuO/Au Nanozyme 认领 引用 被引量：1
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作者 SUN Di YANG Xuewen +6 位作者 WANG Hui LIN Hongyong HE Xiaoxia HUO Zhenting LIU Yu YU Zhongjie JIANG Wei 《食品科学》 EI CAS CSCD 北大核心 2026年第6期23-40,共18页
In this study,a multifunctional aptamer-conjugated magnetic covalent organic framework(COF)-CuO/Au nanozyme(MCOF-CuO/Au@apt)was developed as a“three-in-one”platform for dual-signal colorimetric and fluorescent detec... In this study,a multifunctional aptamer-conjugated magnetic covalent organic framework(COF)-CuO/Au nanozyme(MCOF-CuO/Au@apt)was developed as a“three-in-one”platform for dual-signal colorimetric and fluorescent detection of Vibrio parahaemolyticus.The nanozyme integrated magnetic separation,peroxidase-like catalytic activity,and specific target recognition through an aptamer-based strategy.Upon binding to V.parahaemolyticus,the catalytic oxidation of tetra-aminophenylethylene(TPE-4A)by the nanozyme was selectively inhibited,resulting in distinct colorimetric and fluorescent signals that significantly enhanced the detection accuracy and reliability.The proposed method exhibited high sensitivity,with limits of detection(LOD)of 21 and 7 CFU/mL for the colorimetric and fluorescent assays,respectively.The performance of this method was validated using real seafood samples,including Penaeus vannamei,Mytilus coruscus,and Crassostrea gigas,which showed high recovery rates(101.11%-107.30%)and excellent reproducibility.The system also demonstrated strong specificity and accuracy under various conditions,confirming its robustness and practical applicability.Collectively,this innovative platform presents a promising solution for the rapid,versatile,and sensitive detection of V.parahaemolyticus in seafood,with considerable potential to advance food safety diagnosis and on-site monitoring. 展开更多
关键词 Vibrio parahaemolyticus dual-signal detection aptamer-based nanozyme magnetic covalent organic framework seafood safety
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Built-in control of donor-acceptor units within covalent organic frameworks for enhanced Li-ion storage kinetics 认领 引用
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作者 Haojing Liu Fanyu Meng +7 位作者 Xiaoxiao Dong Han Wang Xingwang Lan Mingxu Liu Yongcheng Jin Chenghui Xia Qiang Xu Chun-Chao Hou 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第8期743-752,I0017,共10页
Lithium-ion batteries(LIBs)with high energy and power densities are widely utilized in diverse applications,ranging from portable electronic devices to electric vehicles.Compared with conventional inorganic electrode ... Lithium-ion batteries(LIBs)with high energy and power densities are widely utilized in diverse applications,ranging from portable electronic devices to electric vehicles.Compared with conventional inorganic electrode materials constrained by resource scarcity and limited energy density,covalent organic frameworks(COFs)emerge as promising candidates for next-generation lithium-ion battery electrodes.Herein,as a proof-of-concept,a donor-acceptor(D-A)engineering strategy is implemented in a series of benzothiazole-based COF-n(n=0–3)through the stepwise introduction of hydroxyl-substituted aldehyde linkers.The incorporated hydroxyl groups undergo keto-enol tautomerism,generating in situ carbonyl(C=O)units as acceptor sites and enabling built-in modulation of the D-A interactions.Theoretical and experimental results confirm that dense incorporation of multi-carbonyl ligands as strong acceptors effectively strengthens D-A interactions.This optimized structural characteristic endows the engineered COF frameworks with extended hexagonal mesoporous networks,which greatly accelerate ion diffusion(DLi=10-10–10-9cm2s-1).Meanwhile,the narrowed band gap(Eg=0.47 eV)of COF further improves intrinsic electronic conductivity.Benefiting from these,the optimized COF-3 anode displays significantly boosted rate performance and enhanced cycling stability(retaining a capacity of 217 m A h g-1 at 0.2 A g-1after 500 cycles,and 151 mA h g-1at 0.5 A g-1after 1000 cycles).This work offers fundamental insights into the design and operational mechanism of D-A structured COF electrodes for Li-ion storage. 展开更多
关键词 Covalent-organic frameworks Li-ion batteries Donor-acceptor Electron transport
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Hydrogen migration induced magnetic phase transition in two-dimensional Fe-porphyrinoid metal-organic frameworks 认领 引用
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作者 Chao Jia Min Ren +1 位作者 Yingdi Jin Xingxing Li 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2026年第2期79-85,共7页
The control of magnetic state is crucial for spintronic applications but remains a significant challenge.Tradi-tionally,controlling magnetic state relies on physical approaches,such as applying external magnetic field... The control of magnetic state is crucial for spintronic applications but remains a significant challenge.Tradi-tionally,controlling magnetic state relies on physical approaches,such as applying external magnetic fields or utilizing spin-orbit coupling.In our previous work,we proposed a novel chemical approach to manipulate the magnetic state of a system through lactim-lactam tautomerization.Here,by first principles calculations,we extend the type of tautomerization to intramolecular hydrogen migration,and reveal that hydrogen migration can modulate magnetic coupling and lead to distinct magnetic configurations in two-dimensional(2D)metal-organic frameworks(MOFs)composed of diradical porphyrinoid and Fe.The migration of hydrogen atoms within porphyrinoid results in four isometric MOFs with notable changes in spin density distribution on organic linkers,which subsequently alters the magnetic coupling between the metal node and organic linkers,leading to ferromagnetic-ferrimagnetic(FM-FiM)transition in the framework.The magnetic coupling strength also changes significantly,with the Curie temperature enhanced from 5.2 to 100.1 K.Furthermore,accompanied with the magnetic transition,the MOFs experience an electronic transition from normal half semiconductors(with band gaps of 0.11 and 0.03 eV),where the valence band(VB)and conduction band(CB)share the same spin channel,to bipolar magnetic semiconductors(with band gaps of 0.06 and 0.13 eV),where the VB and CB become fully spin-polarized in opposite directions. 展开更多
关键词 Hydrogen migration Metal-organic frameworks Diradical Porphyrinoid Magnetic phase transition
Managing Interpenetration in 3D Covalent Organic Frameworks with Spatial-aromatic Building Blocks 认领 引用
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作者 Zhen-Yang Hu Fu-Xiang Wen +1 位作者 Xiao-Yi Xu Ning Huang 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2026年第8期2395-2402,I0006,共8页
The regulation of interpenetration in three-dimensional covalent organic frameworks(3D COFs)poses a fundamental challenge while offering a powerful means to engineer their pore environments.In this study,we demonstrat... The regulation of interpenetration in three-dimensional covalent organic frameworks(3D COFs)poses a fundamental challenge while offering a powerful means to engineer their pore environments.In this study,we demonstrate that the geometry and electronic character of linear linkers are decisive for achieving such control.Using a rigid,sterically extended 6-connected trigonal prismatic amine building block,we synthesized an isoreticular pair of acs-topology 3D COFs to compare the influence of a fully aromatic linker.The resulting frameworks,tris(trimethylbis-4-aminophenylphenyl)benzene(TTAPB)-terephthalaldehyde(TPA)-COF and TTAPB-C,C-diformyl-p-carborane(DFCB)-COF,exhibited dramatically different degrees of interpenetration,6-fold and 2-fold,respectively.This contrast originates directly from the linker core;the planarπ-conjugated TPA promotes dense,multifold interpenetration,whereas the globular,electron-deficient carborane introduces steric and electronic constraints that strongly limit network replication.Consequently,the difference in the interpenetration dictates the distinct porosity and gas adsorption behavior.By elucidating the structure-determining roles of monomer geometry and electronic properties,this work establishes a rational design principle for programming interpenetration and porosity in 3D extended frameworks. 展开更多
关键词 Covalent organic frameworks Porous polymer acs Topology Gas adsorption
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Dimensional engineering modulation of electron-spin synergy for conductive metal-organic frameworks to boost electromagnetic wave absorption 认领 引用
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作者 Haowen Xing Haichuan Cheng +2 位作者 Zhen Huang Jianfeng Wu Baoliang Zhang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第7期22-34,I0003,共13页
Conductive metal-organic frameworks(cMOFs) demonstrate remarkable advantages in electromagnetic wave(EMW) absorption, attributed to their designable topological architectures and tailorable conjugated networks. Howeve... Conductive metal-organic frameworks(cMOFs) demonstrate remarkable advantages in electromagnetic wave(EMW) absorption, attributed to their designable topological architectures and tailorable conjugated networks. However, the preferential orientation and aligned stacking of low-dimensional systems(1D and 2D) tend to augment EMW reflection and restrict scattering, rendering the construction of efficient multiple loss channels unfeasible, resulting in insufficient overall energy dissipation. This study proposes a method that integrates density functional theory(DFT)-guided design with ordered liquid-phase assembly regulation, successfully fabricating a series of cMOFs with both efficient charge transport and excellent spin polarization, aimed at intensifying energy attenuation with scale-coordinated tuning.The volumetric framework of the Fe-DHBQ-3D(DHBQ represents: 2,5-dihydroxy-1,4-benzoquinone)exhibits enhanced charge transport efficiency and amplified interfacial polarization through a percolating conjugated network, which provides structural support for rapid charge separation and the formation of stable interfacial dipoles. Its coordination environment constrains metal ion spin arrangement to further boost magnetic dipole interactions that significantly reinforce the synergistic ordering and orientational regularity of the spin system. Prominently, its spatial interconnected network establishes full-domain connectivity that overcomes inherent fragmentation and local isolation in directionally extended arrangements, promoting the collaborative unification of the confined space and conjugated scaffold.With the transcending expansion of hierarchies, the effective absorption bandwidth(EAB) increased 5orders of magnitude, and reflection loss(RL) improved significantly from-1.79 to-30.54 dB. This research not only reveals the structure-dominated energy management mechanism of cMOFs but also provides a general strategy for the efficient design and functional customization of EMW absorption materials. 展开更多
关键词 Conductive metal‑organic frameworks Electromagnetic energy Density functional theory Liquid‑phase assembly Dimensional regulation
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Ligand-directed construction of cobalt-oxo cluster-based organic frameworks:Structural modulation,semiconductor,and antiferromagnetic properties 认领 引用
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作者 SHI Jinlian LIU Xiaoru XU Zhongxuan 《无机化学学报》 SCIE CAS CSCD 北大核心 2026年第1期45-54,共10页
Under hydrothermal and solvothermal conditions,two novel cobalt-based complexes,{[Co2(CIA)(OH)(1,4-dtb)]·3.2H2O}n(HU23)and{[Co2(CIA)(OH)(1,4-dib)]·3.5H2O·DMF}n(HU24),were successfully construct... Under hydrothermal and solvothermal conditions,two novel cobalt-based complexes,{[Co2(CIA)(OH)(1,4-dtb)]·3.2H2O}n(HU23)and{[Co2(CIA)(OH)(1,4-dib)]·3.5H2O·DMF}n(HU24),were successfully constructed by coordinatively assembling the semi-rigid multidentate ligand 5-(1-carboxyethoxy)isophthalic acid(H₃CIA)with the Nheterocyclic ligands 1,4-di(4H-1,2,4-triazol-4-yl)benzene(1,4-dtb)and 1,4-di(1H-imidazol-1-yl)benzene(1,4-dib),respectively,around Co2+ions.Single-crystal X-ray diffraction analysis revealed that in both complexes HU23 and HU24,the CIA3-anions adopt aκ7-coordination mode,bridging six Co2+ions via their five carboxylate oxygen atoms and one ether oxygen atom.This linkage forms tetranuclear[Co4(μ3-OH)2]6+units.These Co-oxo cluster units were interconnected by CIA3-anions to assemble into 2D kgd-type structures featuring a 3,6-connected topology.The 2D layers were further connected by 1,4-dtb and 1,4-dib,resulting in 3D pillar-layered frameworks for HU23 and HU24.Notably,despite the similar configurations of 1,4-dtb and 1,4-dib,differences in their coordination spatial orientations lead to topological divergence in the 3D frameworks of HU23 and HU24.Topological analysis indicates that the frameworks of HU23 and HU24 can be simplified into a 3,10-connected net(point symbol:(410.63.82)(43)2)and a 3,8-connected tfz-d net(point symbol:(43)2((46.618.84))),respectively.This structural differentiation confirms the precise regulatory role of ligands on the topology of metal-organic frameworks.Moreover,the ultraviolet-visible absorption spectra confirmed that HU23 and HU24 have strong absorption capabilities for ultraviolet and visible light.According to the Kubelka-Munk method,their bandwidths were 2.15 and 2.08 eV,respectively,which are consistent with those of typical semiconductor materials.Variable-temperature magnetic susceptibility measurements(2-300 K)revealed significant antiferromagnetic coupling in both complexes,with their effective magnetic moments decreasing markedly as the temperature lowered.CCDC:2457554,HU23;2457553,HU24. 展开更多
关键词 semi-rigid carboxylic acid ligands three-dimensional framework tetranuclear cobalt-oxo cluster semiconductor material antiferromagnetic magnetism
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Construction of iron manganese metal-organic framework-derived manganese ferrite/carbon-modified graphene composites toward broadband and efficient electromagnetic dissipation 认领 引用 被引量：6
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作者 Baohua Liu Shuai Liu +1 位作者 Zaigang Luo Ruiwen Shu 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2025年第3期546-555,共10页
The preparation of carbon-based electromagnetic wave(EMW)absorbers possessing thin matching thickness,wide absorption bandwidth,strong absorption intensity,and low filling ratio remains a huge challenge.Metal-organic ... The preparation of carbon-based electromagnetic wave(EMW)absorbers possessing thin matching thickness,wide absorption bandwidth,strong absorption intensity,and low filling ratio remains a huge challenge.Metal-organic frameworks(MOFs)are ideal self-sacrificing templates for the construction of carbon-based EMW absorbers.In this work,bimetallic FeMn-MOF-derived MnFe2O4/C/graphene composites were fabricated via a two-step route of solvothermal reaction and the following pyrolysis treatment.The results re-veal the evolution of the microscopic morphology of carbon skeletons from loofah-like to octahedral and then to polyhedron and pomegran-ate after the adjustment of the Fe3+to Mn2+molar ratio.Furthermore,at the Fe3+to Mn2+molar ratio of 2:1,the obtained MnFe2O4/C/graphene composite exhibited the highest EMW absorption capacity.Specifically,a minimum reflection loss of-72.7 dB and a max-imum effective absorption bandwidth of 5.1 GHz were achieved at a low filling ratio of 10wt%.In addition,the possible EMW absorp-tion mechanism of MnFe2O4/C/graphene composites was proposed.Therefore,the results of this work will contribute to the construction of broadband and efficient carbon-based EMW absorbers derived from MOFs. 展开更多
关键词 metal-organic frameworks graphene magnetic composites morphology regulation electromagnetic dissipation
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Enhancing dipole polarization loss in conjugated metal-organic frameworks via coordination symmetry breaking under electromagnetic field 认领 引用 被引量：6
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作者 Weize Wang Rong Liu +10 位作者 Jiaqi Tao Tinglei Yu Yijie Liu Lvtong Duan Zifu Zhang Zhihao He Shuang Chen Jintang Zhou Ping Chen Peijiang Liu Zhengjun Yao 《Advanced Powder Materials》 EI CAS CSCD 2025年第4期70-80,共11页
Modulating the dipole polarization loss in the single-atom region and establishing its direct relationship with the electromagnetic wave absorption(EWA)performance remain an unmet challenge.Here,a dual-ligand modulati... Modulating the dipole polarization loss in the single-atom region and establishing its direct relationship with the electromagnetic wave absorption(EWA)performance remain an unmet challenge.Here,a dual-ligand modulation strategy,i.e.,partially changing coordination atoms in the single-metal region(sMr),is introduced to effectively break the coordination symmetry of conjugated metal-organic frameworks(cMOFs),finally enhancing EWA property of cMOFs materials.Further,the asymmetrical sMr is experimentally found to elicit the dipole polarization loss,overcoming the handicaps of other electromagnetic wave loss mechanisms,which directly contribution to enhance EWA performance of this series of cMOFs.This strategy is further confirmed by replacing metal centers.Among studied series of cMOFs,Cu2.25/Co0.75(HHTP1.67HITP0.33)achieves excellent EWA performance with an effective absorption bandwidth of 5.00 GHz and a reflection loss of66.03 dB.We introduce a dual-ligand modulation strategy targeting single-metal regions within cMOFs here,aiming to achieve superior EWA performance through atomic-scale dipole polarization loss modulation.We hope our study can inspire more exploration to realize high-performance EWA materials. 展开更多
关键词 Asymmetric structure Single-metal region Dipole polarization loss Electromagnetic wave absorption materials Conjugated metal-organic frameworks
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Thickness-controllable synthesis of metal-organic framework based hollow nanofiowers with magnetic core via liquid phase epitaxy for phosphopeptides enrichment 认领 引用 被引量：1
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作者 Ning Zhang Mengjie Qin +6 位作者 Jiawen Zhu Xuejing Lou Xiao Tian Wende Ma Youmei Wang Minghua Lu Zongwei Cai 《Chinese Chemical Letters》 SCIE CAS CSCD 2025年第4期622-626,共5页
A thickness-controllable method for preparing metal-organic framework hollow nanofiowers on magnetic cores(Fe3O4@MOFs HFs)was demonstrated for the first time.The petal of magnetic core with hollow nanofiower str... A thickness-controllable method for preparing metal-organic framework hollow nanofiowers on magnetic cores(Fe3O4@MOFs HFs)was demonstrated for the first time.The petal of magnetic core with hollow nanofiower structure served as medium for assembling Ui O-66-NH2shell with different thickness.To further improve its performance,Zr4+was immobilized on the surface of Fe3O4@Ui O-66-NH2.Compared with conventional Fe3O4@Ui O-66-NH2-Zr4+nanospheres,the Fe3O4@Ui O-66-NH2-Zr4+HFs showed increased enrichment performance for phosphopeptides.The Fe3O4@Ui O-66-NH2-Zr4+HFs served as an attractive restricted-access adsorption material exhibited good selectivity(mβ-casein:mBSA=1:1000),high sensitivity(1.0 fmol)and excellent size-exclusion effect(m)((β-casein digests):mBSA=1:200).Furthermore,the Fe3O4@Ui O-66-NH2-Zr4+HFs was successfully applied to the specific capture of ultratrace phosphopeptide from complex biological samples,revealing the great potential for the identification and analysis of trace phosphopeptides in clinical analysis.This work can be easily extended to the fabrication of diverse mag-MOF HFs with multifunctional and easy to post-modify properties,and open up a new avenue for the design and construction of new MOFs material. 展开更多
关键词 Metal-organic framework Nanofiower Phosphopeptide Serum Saliva
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Synergistic removal of tetracycline in water with highly stable Lac immobilized on magnetic metal-organic framework 认领 引用 被引量：1
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作者 Linyu Shen Zhiquan An +3 位作者 Xiaoyu Jian Minjie Li Bihong Zhang Liang-Hong Guo 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2025年第8期536-549,共14页
The arbitrary discharge of tetracycline(TC)residuals has seriously influenced the ecosystem and human health.Laccase(Lac)-based biodegradation technology is considered a more effective way to remove TC due to its high... The arbitrary discharge of tetracycline(TC)residuals has seriously influenced the ecosystem and human health.Laccase(Lac)-based biodegradation technology is considered a more effective way to remove TC due to its high catalytic efficiency and less by-product.Nevertheless,free Lac suffers from poor stability,easy inactivation and difficult recovery,restricting its application.Immobilization of Lac is considered an efficient strategy for addressing these obstacles.In this study,a magnetic metal-organic framework of Fe3O4@SiO2@UiO-66-NH2(MMOF)was prepared and used as a carrier to immobilize Lac(Lac@MMOF)for TC degradation.Benefiting from the multiple binding sites,adsorption,and protection effect of MMOF,Lac@MMOF displayed a wider pH application range(2–7)and better thermal(15–85℃),repeatability,and storage stability than free Lac.Furthermore,owing to the synergism of MOF adsorption and Lac biocatalysis,the removal rate of Lac@MMOF for TC could be up to 98%at pH=7 within 1 hr,which was 1.29 and 1.24 times that of free Lac and MMOF,respectively.More importantly,Lac@MMOF could easily be separated from aqueous solution under a magnetic field and maintained good removal performance(80%)after five cycles.The degradation products were identified by applying LC-MS/MS,and possible degradation mechanisms and pathways were proposed.Finally,the antibacterial activity of intermediate products was evaluated using Escherichia coli,which revealed that the toxicity of TC was reduced effectively by the degradation of Lac@MMOF.Overall,Lac@MMOF is a green alternative for residual antibiotic removal in water. 展开更多
关键词 Tetracycline Metal-organic frameworks(MOFs) Laccase(Lac) Biodegradation Toxicity assessment
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Construction of radical halogen-bonded organic frameworks with enhanced magnetism and conductivity 认领 引用 被引量：2
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作者 Hong-Qiang Dong Shang-Bo Yu +9 位作者 Shu-Meng Wang Jia-Hao Zhao Xu-Guan Bai Shi-Xing Lei Zhen-Nan Tian Jia Tian Kang-Da Zhang Lu Wang Zhan-Ting Li Shigui Chen 《Chinese Chemical Letters》 SCIE CAS CSCD 2025年第8期331-336,共6页
The development of organic frameworks with radical skeletons is desired.In this study,we report the development of a novel two-dimensional radical halogen-bonded organic framework(XOF).The radical monomer,benzimidazol... The development of organic frameworks with radical skeletons is desired.In this study,we report the development of a novel two-dimensional radical halogen-bonded organic framework(XOF).The radical monomer,benzimidazole triphenylmethyl(BTTM),was synthesized through the coupling of TTM radicals with benzimidazole.Initially,the benzimidazole units were coordinated with Ag+ions to create a[N···Ag···N]+framework.Subsequently,the addition of iodine led to the in situ replacement of Ag+with I+ions,forming[N···I···N]+linkers and resulting in the creation of the XOF structure.The resulting XOF-HBTTM and XOF-BTTM structures demonstrated good-crystallinity,confirmed by PXRD,HR-TEM,SEAD,and SAXS analyses.EPR measurements confirmed the preservation of radical characteristics within the XOF framework.Furthermore,SQUID measurements indicated that XOF-BTTM exhibits spin moments of S=1/2 at 2 K,with a saturated magnetization strength peaking at 4.10 emu/g,a notable enhancement compared to 1.87 emu/g for the BTTM monomer.This improvement in magnetism is attributed to the extended spin density distribution and the presence of[N···I···N]+interactions,as suggested by DFT calculations.Additionally,the radical XOF-BTTM exhibited significantly enhanced electrical conductivity,reaching up to 1.30×10-4S/cm,which is two orders of magnitude higher than that of XOF-HBTTM.This increased conductivity is linked to a reduced HOMO-LUMO gap,higher carrier density,and the incorporation of triphenylmethyl radicals within the framework.This research highlights the potential of benzimidazolyl motifs in constructing functional XOFs and advances our understanding of radical organic frameworks. 展开更多
关键词 [N...I...N]+Halogen-bonded organic framework Radical Paramagnetic Hall effect
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Cat Swarm Algorithm Generated Based on Genetic Programming Framework Applied in Digital Watermarking 认领 引用 被引量：1
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作者 Shu-Chuan Chu Libin Fu +2 位作者 Jeng-Shyang Pan Xingsi Xue Min Liu 《Computers, Materials & Continua》 SCIE EI 2025年第5期3135-3163,共29页
Evolutionary algorithms have been extensively utilized in practical applications.However,manually designed population updating formulas are inherently prone to the subjective influence of the designer.Genetic programm... Evolutionary algorithms have been extensively utilized in practical applications.However,manually designed population updating formulas are inherently prone to the subjective influence of the designer.Genetic programming(GP),characterized by its tree-based solution structure,is a widely adopted technique for optimizing the structure of mathematical models tailored to real-world problems.This paper introduces a GP-based framework(GPEAs)for the autonomous generation of update formulas,aiming to reduce human intervention.Partial modifications to tree-based GP have been instigated,encompassing adjustments to its initialization process and fundamental update operations such as crossover and mutation within the algorithm.By designing suitable function sets and terminal sets tailored to the selected evolutionary algorithm,and ultimately derive an improved update formula.The Cat Swarm Optimization Algorithm(CSO)is chosen as a case study,and the GP-EAs is employed to regenerate the speed update formulas of the CSO.To validate the feasibility of the GP-EAs,the comprehensive performance of the enhanced algorithm(GP-CSO)was evaluated on the CEC2017 benchmark suite.Furthermore,GP-CSO is applied to deduce suitable embedding factors,thereby improving the robustness of the digital watermarking process.The experimental results indicate that the update formulas generated through training with GP-EAs possess excellent performance scalability and practical application proficiency. 展开更多
关键词 Cat swarm algorithm genetic programming digital watermarking update mode mode generation framework
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Prelithiation of silicon encapsulated in MOF-derived carbon/ZnO framework for high-performance lithium-ion battery 认领 引用 被引量：2
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作者 Congcong Liu Yang Yang +6 位作者 Yu Yao Tao Dai Shitan Xu Shoumeng Yang Ghulam Ali Xianhong Rui Yan Yu 《Nano Materials Science》 EI CAS CSCD 2026年第2期298-306,共9页
Silicon possesses a high theoretical capacity,making it a potential contender for lithium-ion battery(LIB)anodes.Nonetheless,its practical usage is challenged by low electrical conductivity and significant volume expa... Silicon possesses a high theoretical capacity,making it a potential contender for lithium-ion battery(LIB)anodes.Nonetheless,its practical usage is challenged by low electrical conductivity and significant volume expansion during cycling.Here,we synthesized a novel silicon/carbon(Si/C)anode doped with ZnO via a template-derived method and high-temperature carbonization.The carbon structure,originated from metal-organic frameworks(MOFs)and ZnO doping,substantially enhanced the electrochemical properties of the composite material.It exhibited an initial capacity of 2100.3 mA h g-1at a current density of 0.2 A g-1and demonstrated excellent capacity retention over successive cycles.Moreover,the composite material displayed superior rate performance at higher current densities of 2 A g-1and 3 A g-1.To address the low initial Coulombic efficiency(ICE)of siliconbased materials,we adopted a direct contact prelithiation approach and optimized the lithiation process by controlling the prelithiation time.After 30 min of prelithiation,the ICE reached 97.9%,thereby reducing the initial irreversible capacity loss(ICL)and realizing stable discharge-charge in subsequent cycles.This rational design provides valuable insights for achieving high-performance silicon anode. 展开更多
关键词 Metal-organic frameworks Silicon ZnO Prelithiation Lithium-ion batteries
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Metal-organic frameworks for sustainable recovery of precious metals:Advances in synthesis,applications,and multiscale mechanisms 认领 引用 被引量：2
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作者 Baocheng Zhou Guo Lin +3 位作者 Shixing Wang Tu Hu Yunfei An Libo Zhang 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2026年第2期417-445,共29页
The recovery of precious metals(PMs)from secondary resources is critical for addressing global supply-chain vulnerabilities and sustainable resource utilization.This review systematically examines the transformative p... The recovery of precious metals(PMs)from secondary resources is critical for addressing global supply-chain vulnerabilities and sustainable resource utilization.This review systematically examines the transformative potential of metal-organic frameworks(MOFs)as next-generation adsorbents for PM recovery,focusing on their synthesis,functionalization,and multiscale adsorption mechanisms.We critically analyze conventional pyrometallurgical and hydrometallurgical methods and highlight their limitations in terms of selectivity,energy consumption,and secondary pollution.In contrast,MOFs offer tunable porosity,abundant active sites,and tunable surface chemistry,enabling efficient PM capture via synergistic physical and chemical adsorption.Advanced modification techniques,including direct synthesis and post-synthetic modification,are reviewed to propose strategies for enhancing the adsorption kinetics and selectivity for Au,Ag,Pt,and Pd.Key structure-property relationships are established through multiscale characterization and thermodynamic models,revealing the critical roles of hierarchical porosity,soft donor atoms,and framework stability.Industrial challenges,such as aqueous stability and scalability,are addressed via Zr-O bond strengthening,hydrophobic functionalization,and support immobilization.This study consolidates the experimental and theoretical advances in MOF-based PM recovery and provides a roadmap for translating laboratory innovations into practical applications within the circular-economy framework. 展开更多
关键词 metal-organic frameworks precious metal recovery functionalization adsorption mechanisms circular economy
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Three-dimensional supramolecular polymer frameworks with precisely tunable and large apertures for enzyme encapsulation 认领 引用 被引量：2
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作者 Runtan Gao Yang Zong +2 位作者 Tingting Li Na Liu Zongquan Wu 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第1期361-367,共7页
Three-dimensional supramolecular organic frameworks with precisely tunable pore sizes are highly demanded for a wide range of applications,e.g.,encapsulating enzymes to enhance their stability,activity,and reusability... Three-dimensional supramolecular organic frameworks with precisely tunable pore sizes are highly demanded for a wide range of applications,e.g.,encapsulating enzymes to enhance their stability,activity,and reusability.However,precise control and tune the pore size of such frameworks still remains a significant challenge to date.In this study,we constructed supramolecular polymer frameworks using rigid tetrahedral star polyisocyanides with tunable length and sufficiently narrow distribution as building block.First,a series of tetrahedral four-arm star polyisocyanides with controlled chain lengths and narrow molecular weight distributions was prepared via the Pd(Ⅱ)-catalyzed living isocyanide polymerization.Then 2-ureido-4[1H]-pyrimidinone(Upy) unit was installed onto each chain-end of polyisocyanide arms via post-polymerization functionalization.Leveraging the supramolecular hydrogen bonding interactions between the terminal Upy units,well-ordered supramolecular polymer frameworks were readily obtained.Notably,the pore size was dependent on the chain length of the polyisocyanide arms.Precisely control the chain length of polyisocyanide arms,supramolecular polymer frameworks with pore sizes ranging from 5.06 nm to 9.72 nm were achieved.These frameworks,with tunable and large pore apertures,demonstrated exceptional capabilities in encapsulating enzymes of different sizes,such as lipase(TL),horseradish peroxidase(HRP),and glucose oxidase(GOx).The encapsulated enzymes exhibited significantly enhanced catalytic activity and durability.Moreover,the frameworks' tunable and large pore apertures facilitated the co-encapsulation of multiple enzymes,enabling efficient dual-enzyme cascade reactions. 展开更多
关键词 Supramolecular organic frameworks Living polymerization Supramolecular self-assembly Polyisocyanide Enzyme encapsulation
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Uncovering the urban-rural integration of China over the past 40 years:Measurement framework and spatial-temporal evolution 认领 引用 被引量：1
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作者 Chuanglin Fang Kewen Wang +6 位作者 Zehui Chen Zhitao Liu Menghang Liu Biao Sun Xia Liao Lingyu Meng Zhiying Yang 《Geography and Sustainability》 CSCD 2026年第3期51-62,共12页
Alleviating the imbalance between urban and rural areas for regional coordinated development is an imperative response to the Sustainable Development Goal 10 of the United Nations.To track China’s urban-rural integra... Alleviating the imbalance between urban and rural areas for regional coordinated development is an imperative response to the Sustainable Development Goal 10 of the United Nations.To track China’s urban-rural integration progress and address the uneven issues in specific fields,this study constructed a novel seven-dimension index system of urban-rural integration,comprising free population mobility,efficient land transfer,interactive economic growth,highly-linked transportation,equal public services,joint environmental governance and unimpeded informatization between urban and rural areas.Based on a comprehensive measurement framework and multi-source panel data,we uncovered the spatial-temporal evolution of urban-rural integration in China’s 367 prefecture-level administrative units from 1980 to 2022.The results demonstrated that China’s urban-rural integration steadily increased from 27.51 to 57.35 with an average annual growth rate of 3.40%.Whereas,the overall urban-rural integration was relatively inferior in 2022,at the level of moderate integration whose proportion of China’s land area was 88.08%.The urban-rural integration level in eastern region and urban agglomerations was higher than that in mid-west and non-urban agglomerations.From the perspective of seven dimensions,interactive economic growth,joint environmental governance and unimpeded informatization made an obvious improvement and reached higher integration,while free population mobility,efficient land transfer,highly-linked transportation and equal public services maintained the stage of moderate integration in 2022.In the future,China should make targeted efforts for urban-rural integration in terms of population,land use,transportation and public services,and accelerate urban-rural common prosperity in the mid-west and economically underdeveloped areas. 展开更多
关键词 Urban-rural integration Measurement framework Spatial-temporal evolution Heterogeneity China
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Ultra heat-resistant hydrogen-bonded organic framework:Breaking the thermal stability limit of high-energy materials 认领 引用 被引量：3
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作者 Bojun Tan Jinkang Dou +13 位作者 Jing Zhang Xiong Yang Jiatong Ren Changwei Tang Jian Su Gen Zhang Siwei Song Qinghua Zhang Binghui Duan Hongchang Mo Minghui Xu Xianming Lu Bozhou Wang Ning Liu 《Defence Technology（防务技术）》 SCIE EI CAS CSCD 2026年第3期300-306,共7页
The pursuit of heat-resistant energetic materials(HREMs)with thermal stability beyond 450℃ presents a significant challenge that has yet to be achieved.In this work,we develop an innovative electronic delocalization ... The pursuit of heat-resistant energetic materials(HREMs)with thermal stability beyond 450℃ presents a significant challenge that has yet to be achieved.In this work,we develop an innovative electronic delocalization strategy to design and synthesize a planar dizwitterionic diamino-bistriazolotetrazine,designated as TYX-1.The unique structural feature of TYX-1,including a nitrogen-rich fused ring system,planar conformation,and dizwitterionic configuration,combined with its hydrogen-bonded organic framework(HOF)structure,confer exceptional thermal stability(The onset temperature is 428℃,and the peak temperature is 473℃),high density(1.84 g/cm3),and remarkable detonation performance(detonation velocity:8616 m/s).Furthermore,TYX-1 exhibits an impressive insensitivity(impact sensitivity>40 J;friction sensitivity>360 N),surpassing all previously reported HREMs.Theoretical calculations and single-crystal clearly indicate that the delocalizedπelectrons within the dizwitterionic bistriazolotetrazine rings and the HOF structure of TYX-1 are pivotal in ensuring its high thermal stability and high energy density.The discovery of TYX-1 marks a significant advancement in the field of HREMs and is anticipated to catalyze substantial progress in various high-temperature applications reliant on energetic materials. 展开更多
关键词 Ultra heat-resistant energetic materials Hydrogen-bonded organic framework A planar dizwitterionic structure Nitrogen-rich fused-ring skeleton
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Porphyrin-based metal-organic frameworks for photocatalytic carbon dioxide reduction:Current understanding and challenges 认领 引用 被引量：1
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作者 Hao Wu Rui Liu +1 位作者 Donghui Li Yun Hau Ng 《Nano Materials Science》 EI CAS CSCD 2026年第1期183-206,共24页
Photocatalytic carbon dioxide reduction reaction(CO2RR)is a carbon-neutral strategy to address global energy use and its impact on climate.Metal oxide and metal chalcogenide catalysts are the most investigated cata... Photocatalytic carbon dioxide reduction reaction(CO2RR)is a carbon-neutral strategy to address global energy use and its impact on climate.Metal oxide and metal chalcogenide catalysts are the most investigated catalysts for photocatalytic CO2RR.Unfortunately,low CO2adsorption ability and limited active sites of metal oxide and metal chalcogenide catalysts for CO2RR make them less competitive compared to their industrial counterparts.Inspired by applications of porphyrin-based metal-organic framework(MOF)catalysts for hydrogen evolution and photodynamic therapy,the investigations of these porphyrin-based MOFs,including pristine and composite porphyrin-based MOFs in photocatalytic CO2RR,have attracted significant attention in the last five years due to their excellent CO2adsorption capacities,high porosity,high stability,exceptional optoelectronic properties,and multi-functionality.However,due to the difference in photocatalytic CO2RR,several critical issues need to be addressed to achieve the rational design of advanced porphyrin-based MOF photocatalysts to improve activity,selectivity,and stability for CO2RR.Here,we review recent developments in the field of porphyrin-based MOF CO2RR photocatalysts,along with critical issues,challenges,and perspectives concerning porphyrin-based MOF catalysts for photocatalytic CO2RR. 展开更多
关键词 Porphyrin Metal-organic framework Photocatalyst Carbon dioxide conversion Charge separation
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