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Experimental Study on the Evaporation Process of Na2SO4 Aqueous Solution Droplets underThermal Radiation Heating 认领 引用
1
作者 Bingchao Zhao Jiahao Yu +3 位作者 Zhen Zhang Jinduo Wang Dan Zhang Wenbo Zhou 《Frontiers in Heat and Mass Transfer》 EI CAS 2026年第3期72-86,共15页
To achieve the goal of deep desalination of saline wastewater driven by solar energy,the evaporation experiments of NazSO4 aqueous solution droplets under thermal radiation heating condition have been carried out with... To achieve the goal of deep desalination of saline wastewater driven by solar energy,the evaporation experiments of NazSO4 aqueous solution droplets under thermal radiation heating condition have been carried out with the working conditions of 1450 and 1930 nm,heat flux varied from 1.1×105 to 2.5×105 W·m−2,initial mass fraction in the range of 0.01~0.16 and droplet initial volume of 2.0~8.0µL,respectively.The results indicate that absorption coefficient,initial mass fraction,heat flux and initial droplet volume have significantly influences on the evaporation characteristics.The main evaporation time can be shortened by 45.6%and 52%with the growth of the initial mass fraction from 0.01 to 0.16 and the decrease of the initial volume from 8 to 2µL,respectively.The average evaporation can significantly increase by 55.7%and by 123%with the increase of the initial mass fraction from O.01 to O.l6 and the heat flux varied from 1.1×105 W·m-² to 2.5×105 W·m-²,respectively.Moreover,the average evaporation rate of the 1930 nm is 47.7%higher than that of the 1450 nm.Meanwhile,the experimental results have a good agreement with the theoretical values within the relative error in the range of±30%.In summary,the above results can provide references for the design and engineering application of the desalination system and device of solar salty wastewater. 展开更多
关键词 Thermal irradiation evaporation processes evaporation rate absorptivity crystallization
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Evaporation dominates growing season evapotranspiration:A case study from a boreal larch forest with synchronized water supply and energy demand in China 认领 引用
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作者 Zhipeng Xu Xiuling Man +2 位作者 Tijiu Cai Shuo Zhang Liangliang Duan 《Forest Ecosystems》 SCIE CAS CSCD 2026年第1期1-10,共10页
Understanding the relative contributions of transpiration(T)and evaporation(E)to evapotranspiration(ET)is critical for evaluating water use efficiency,ecosystem productivity,and soil–plant–atmosphere interactions in... Understanding the relative contributions of transpiration(T)and evaporation(E)to evapotranspiration(ET)is critical for evaluating water use efficiency,ecosystem productivity,and soil–plant–atmosphere interactions in a changing environment.However,such partitioning and its responses to dry,normal,and wet conditions,as well as the controlling factors at multiple temporal scales,remain poorly understood in China's boreal forests,characterized by synchronization of water supply and energy demand.In this study,we used 8 years of ET data from the growing season(GS;May–September)collected via the eddy-covariance system and applied the underlying water use efficiency(uWUE)method to estimate T and E in a boreal larch forest in China.Our results revealed that E was the dominant component of ET.Specifically,T accounted for 0.44 of ET(T/ET),whereas E contributed to 0.56 of ET(E/ET)over the study period.The response of T/ET to dry conditions during the leaf defoliation stage(LDS)was more pronounced than during the leaf expansion stage(LES).Despite an increase in T/ET(reaching 0.49)during the dry season compared to the normal season(0.42),E was still the dominant contributor to ET.Furthermore,E/ET was significantly controlled by vapor pressure deficit(VPD)across daily to GS scales.Interestingly,soil water content(SWC)was not a controlling factor for regulating E/ET,indicating that atmospheric forces strongly constrained the variability of E/ET in this boreal forest.These findings highlight that E should be given greater attention in boreal forests than before.Our study suggests that effective management strategies for improving water use efficiency in such forest ecosystems are urgently needed. 展开更多
关键词 Evapotranspiration(ET) Transpiration(T) Evaporation(E) Meteorological drought Boreal forests
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Radiative Coupled Evaporation Cooling Hydrogel for Above-Ambient Heat Dissipation and Flame Retardancy 认领 引用 被引量：3
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作者 Qin Ye Yimou Huang +4 位作者 Baojian Yao Zhuo Chen Changming Shi Brian WSheldon Meijie Chen 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第2期368-382,共15页
By combining the merits of radiative cooling(RC)and evaporation cooling(EC),radiative coupled evaporative cooling(REC)has attracted considerable attention for sub-ambient cooling purposes.However,for outdoor devices,t... By combining the merits of radiative cooling(RC)and evaporation cooling(EC),radiative coupled evaporative cooling(REC)has attracted considerable attention for sub-ambient cooling purposes.However,for outdoor devices,the interior heating power would increase the working temperature and fire risk,which would suppress their above-ambient heat dissipation capabilities and passive water cycle properties.In this work,we introduced a REC design based on an all-in-one photonic hydrogel for above-ambient heat dissipation and flame retardancy.Unlike conventional design RC film for heat dissipation with limited cooling power and fire risk,REC hydrogel can greatly improve the heat dissipation performance in the daytime with a high workload,indicating a 12.0℃lower temperature than the RC film under the same conditions in the outdoor experiment.In the nighttime with a low workload,RC-assisted adsorption can improve atmospheric water harvesting to ensure EC in the daytime.In addition,our REC hydrogel significantly enhanced flame retardancy by absorbing heat without a corresponding temperature rise,thus mitigating fire risks.Thus,our design shows a promising solution for the thermal management of outdoor devices,delivering outstanding performance in both heat dissipation and flame retardancy. 展开更多
关键词 Radiative cooling Evaporation cooling Heat dissipation Photonic hydrogel Flame retardancy
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Pyrrolic-Nitrogen-Enriched Aerogels With Magnetic Responsiveness Enable Cooperative Hydrogen-Bond Regulation for High-Performance Solar Interfacial Evaporation 认领 引用
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作者 Dongxue Wang Rui Yan +6 位作者 Mengshu Xu Chunyu Yang Jingbo He Shuohao Shi Zhuoran Yang Jian Huang Wei Guo 《Carbon Energy》 SCIE EI CAS CSCD 2026年第4期205-218,共14页
Although solar-driven interfacial evaporation offers a sustainable pathway for desalination and wastewater remediation,its practical implementation remains limited by both the high vaporization enthalpy and rigid hydr... Although solar-driven interfacial evaporation offers a sustainable pathway for desalination and wastewater remediation,its practical implementation remains limited by both the high vaporization enthalpy and rigid hydrogen-bond network of water and performance degradation in complex water matrices.This study introduces a dual-regulation strategy that integrates internal structural optimization with external-field physical modulation.In particular,an Fe-catalyzed pyrrole polymerization process yields a carbon-based aerogel(CPP)with integrated ferromagnetism and enriched pyrrolic nitrogen sites.This synergy increases the intermediate-water fraction,reduces vaporization enthalpy,and accelerates phase-transition kinetics.Under onesun illumination(1 kW m-2),the CPP evaporator achieves an evaporation rate and efficiency of 2.78 kg m-2h-1 and 84.0%,respectively,without magnetic assistance.After applying a 10 m T magnetic field,these values increase to 3.30 kg m-2h-1 and 99.7%,respectively.Moreover,the system demonstrates stable salt self-cleaning in seawater,resilience in organic wastewater,and multifunctionality in pollutant removal,achieving a tetracycline degradation rate of 89% when coupled with a solar-driven advanced oxidation process.This study offers a generalizable framework that couples structural design with external-field modulation for next-generation solar evaporation systems. 展开更多
关键词 aerogel dual-regulation strategy hydrogen-bond regulation multifunctional water treatment solar interfacial evaporation
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Evaporation ducts modulated by the coupling of atmospheric cyclones(anticyclones)and oceanic submesoscale fronts:an observational case 认领 引用
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作者 Yuan GAO Yongchui ZHANG +7 位作者 Xinyue XIA Hongcheng LOU Xiaofeng ZHAO Mei HONG Yang WANG Shiyao CHEN Zhijin QIU Juli DING 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2026年第3期936-949,共14页
Evaporation ducts,which originate at the air-sea boundary,significantly influence electromagnetic propagation,ship communication,radar ranging,and other related fields.However,the current understanding of the variabil... Evaporation ducts,which originate at the air-sea boundary,significantly influence electromagnetic propagation,ship communication,radar ranging,and other related fields.However,the current understanding of the variability in evaporation ducts under the combined effect of atmospheric and oceanic processes remains unclear.Via shipboard observations,the changes in evaporation ducts at paired oceanic submesoscale fronts(OSFs)during and after successive passage of an atmospheric cyclone and anticyclone in the northwestern Pacific Ocean were investigated.The observations indicated that under the dominant influence of sea surface temperature,air temperature,and specific humidity changes,the average evaporation duct height above the OSFs during cyclone passage reached 9.76 m,which is 446% of the 2.19 m during the period when only OSFs occurred.During the anticyclone period,the evaporation duct height ranged from 2 to 3 m.Specific humidity variation was influenced by mainly evaporation,followed by advection and divergence flow.Differences in the influence mechanisms of sea surface temperature and wind speed on evaporation during different periods were explored. 展开更多
关键词 evaporation duct atmospheric cyclone(AC) atmospheric anticyclone(AA) oceanic submesoscale front(OSF)
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Production of proton-rich isotopes of Pu,Cm,Bk,Ds,Cn,Fl by fusion evaporation reactions with40Ar projectile 认领 引用
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作者 Qing-Qing Yao Tian-Liang Zhao Xiao-Jun Bao 《Nuclear Science and Techniques》 SCIE EI CAS CSCD 2026年第3期119-131,共13页
The evaporation residual cross sections(ERCSs)of these reactions were calculated by using144Sm,160,164Dy,165Ho,166Er,169Tm,171,174Yb,175Lu,176-180Hf,181Ta,180,182W and187Re targets wit... The evaporation residual cross sections(ERCSs)of these reactions were calculated by using144Sm,160,164Dy,165Ho,166Er,169Tm,171,174Yb,175Lu,176-180Hf,181Ta,180,182W and187Re targets with40Ar projectiles in the theoretical framework of the dinuclear system(DNS)model.The de-excitation process of the compound nucleus was theoretically calculated using two different statistical models,namely the statistical model 1 and statistical model 2(GEMINI++model).The calculated ERCSs were also compared with the experimental data.The ERCSs of synthesizing new proton-rich nuclides were investigated based on the fusion evaporation reaction.Predictions were made for the ERCSs of new isotopes of Pu,Cm and Bk in the heavy nuclei region,while the new isotopes of Ds,Cn and Fl are predicted in the superheavy nuclei region of Z≥104. 展开更多
关键词 Dinuclear system model Evaporation residue cross section Proton-rich nuclides
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Evaporation of a CO2Droplet in a High Temperature,Supercritical Pressure Environment 认领 引用
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作者 Yendoubouame Lare Koffi Sagna Amah Séna d’Almeida 《Frontiers in Heat and Mass Transfer》 EI CAS 2026年第1期247-265,共19页
This study presents a numerical investigation of the transient relaxation dynamics of a near-critical CO2droplet immersed in a warmer supercritical environment composed of the same fluid.Three thermodynamic regimes... This study presents a numerical investigation of the transient relaxation dynamics of a near-critical CO2droplet immersed in a warmer supercritical environment composed of the same fluid.Three thermodynamic regimes were analysed:quasi-critical(Tr=1.01,Pr=1.01),transitional(Tr=2.01,Pr=1.01),and deep supercritical(Tr=5.01,Pr=3.01).Theevolution of density,temperature,and velocity fieldswas examined to characterize the internal structure and stability of the interfacial transition layer.The evolution of density,temperature,and velocity fields highlights the competition between thermal diffusion,compressibility,andmass confinement in shaping the stability of the interfacial transition layer.Near the critical point,strong gradients and flux discontinuities emerge,consistent with known instabilities,whereas higher reduced conditions promote homogenization and stabilized transport.In the deep supercritical regime,smooth and nearly uniform fields indicate robust thermal stability.The model is validated against prior studies on droplet evaporation under supercritical and trans-critical conditions.Beyond theoretical insights,the results underline practical implications for advanced propulsion,heat transfer,and evaporation systems as well as for safe CO2supercritical storage and extraction processes in energy,aerospace,pharmaceutical,and materials industries. 展开更多
关键词 Navier-Stokes equations evaporation supercritical pressure temperature density and velocity
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Laboratory soil-column investigation of thermo-hydro-saline migration in saline soil with sand replacement layers under evaporation 认领 引用
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作者 GAO Junli LI Zihao +3 位作者 LIU Feiyu DAI Zili GAO Jinbo ZHANG Zhen 《Journal of Arid Land》 SCIE CAS CSCD 2026年第6期1031-1058,共28页
In arid regions,saline subgrades are highly susceptible to deterioration caused by evaporation-driven water-salt migration,which can induce salt accumulation,cracking,and long-term loss of stability.To investigate the... In arid regions,saline subgrades are highly susceptible to deterioration caused by evaporation-driven water-salt migration,which can induce salt accumulation,cracking,and long-term loss of stability.To investigate the role of sand replacement layers in regulating thermo-hydro-saline(THS)migration under evaporation,we conducted indoor soil-column experiments in combination with microstructural observations.The effects of sand type(coarse,medium,and fine sand)and replacement ratio(0.00%,20.00%,35.00%,and 50.00%)were systematically examined under simulated high-temperature and strong-evaporation conditions typical of northwestern China,with continuous monitoring of temperature,relative humidity(RH),and electrical conductivity(EC).The results show that sand replacement effectively inhibited capillary rise,reduced surface salt accumulation,and alleviated shrinkage cracking.Among the tested sand types,coarse sand exhibited the strongest inhibitory effect on upward water-salt migration,whereas fine sand showed the weakest effect because its smaller pores and stronger capillary continuity facilitated upward water-salt migration.Under the medium sand condition,increasing the replacement ratio was associated with stronger suppression of surface salt accumulation,with the 50.00%replacement ratio showing the strongest effect.However,the influence of replacement ratio was not monotonic across all response indicators.A replacement ratio of approximately 35.00%maintained relatively continuous pathways for heat and moisture transfer,whereas higher replacement ratios produced a looser soil skeleton and weaker capillary continuity.Microstructural observations further revealed that salt crystals mainly accumulated near the evaporation front and the lower replenishment zone,while coarse sand tended to form larger pores and reduce matric suction,thereby disrupting upward migration pathways.These findings provide a theoretical basis and technical support for optimizing saline subgrade design and mitigating salt-related damage in arid regions. 展开更多
关键词 saline soil sand replacement layers thermo-hydro-saline(THS)migration evaporation microstructural analysis
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Development of a capillary bundle evaporation advanced mathematical modeling for 1,2-propylene glycol-glycerin mixtures in porous media 认领 引用 被引量：2
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作者 Bingbing Li Jiantong Li +3 位作者 Side Ren Shuo Gu Zhanjian Liu Liyan Liu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2025年第4期261-273,共13页
Porous liquid-conducting micro-heat exchangers have garnered considerable attention for their role in efficient heat dissipation in small electronic devices.This demand highlights the need for advanced mathematical mo... Porous liquid-conducting micro-heat exchangers have garnered considerable attention for their role in efficient heat dissipation in small electronic devices.This demand highlights the need for advanced mathematical models to optimize the selection of mixed heat exchange media and equipment design.A capillary bundle evaporation model for porous liquid-conducting media was developed based on the conjugate mass transfer evaporation rate prediction model of a single capillary tube,supplemented by mercury injection experimental data.Theoretical and experimental comparisons were conducted using 1,2-propanediol-glycerol(PG-VG)mixtures at molar ratios of 1:9,3:7,5:5,and 7:3 at 120,150,and 180℃.The Jouyban-Acree model was implemented to enhance the evaporation rate predictions.For the 7:3 PG-VG mixture at 180℃under the experimental conditions of the thermal medium,the model's error reduced from 16.75%to 10.84%post-correction.Overall,the mean relative error decreased from 11.76%to 5.98%after correction. 展开更多
关键词 Evaporation in porous media Capillary bundle model 1 2-propylene glycol-glycerin Evaporation rate
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Fe3+-coordinated Dual-crosslinked Conjugated Polymer Hydrogels with Ultrahigh Evaporation Rate for Efficient Desalination and Sustainable Agriculture 认领 引用
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作者 ZLi Mu-TianYao +2 位作者 Zi-Yang Qiu JigKun Xu Bao-Yang Lu 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2026年第3期632-643,I0007,共12页
The development of solar-driven interfacial evaporation technology is pivotal for addressing global water scarcity.However,it is hindered by the difficulty in synergizing high photothermal conversion with low water ev... The development of solar-driven interfacial evaporation technology is pivotal for addressing global water scarcity.However,it is hindered by the difficulty in synergizing high photothermal conversion with low water evaporation enthalpy into a single material.Herein,we propose an iron-aldehyde-cooperative dynamic covalent anchoring strategy,successfully constructing a covalently locked,hydroxymethyl-functionalized PEDOT-PVA integrated dual-network hydrogel(MEPH).This strategy employs Fe3+to achieve the one-step in situ oxidative polymerization of hydroxymethyl EDOT while concurrently forming a physical hybrid network with PVA,which is subsequently reinforced by covalent cross-linking using glutaraldehyde.This design endows the MEPH with exceptional broadband light absorption(>99%),efficient water transport,and regulated water state within the hydrogel matrix,leading to a reduced evaporation enthalpy of 732 J·g−1.The resulting evaporator achieves an ultrahigh evaporation rate of 4.95 kg·m−2·h−1under 1-sun illumination,corresponding to an energy conversion efficiency exceeding 95%,while maintaining stable,salt-resistant operation in high-salinity environments.Outdoor experiments validate its outstanding practicality for seawater and wastewater purification,with the produced freshwater significantly promoting plant growth,highlighting its great potential in sustainable agricultural water cycles.This iron-aldehyde-cooperative dynamic covalent anchoring strategy provides an innovative design paradigm for a new generation of high-performance and robust solar evaporators. 展开更多
关键词 Dual crosslinking Conjugated polymer Hydrogel Interfacial evaporator Desalination
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Smoothed Particle Hydrodynamics(SPH)Simulations of Drop Evaporation:A Comprehensive Overview of Methods and Applications 认领 引用
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作者 Leonardo Di G.Sigalotti Carlos A.Vargas 《Computer Modeling in Engineering & Sciences》 SCIE EI 2025年第3期2281-2337,共57页
The evaporation ofmicrometer and millimeter liquid drops,involving a liquid-to-vapor phase transition accompanied by mass and energy transfer through the liquid-vapor interface,is encountered in many natural and indus... The evaporation ofmicrometer and millimeter liquid drops,involving a liquid-to-vapor phase transition accompanied by mass and energy transfer through the liquid-vapor interface,is encountered in many natural and industrial processes as well as in numerous engineering applications.Therefore,understanding and predicting the dynamics of evaporating flows have become of primary importance.Recent efforts have been addressed using the method of Smoothed Particle Hydrodynamics(SPH),which has proven to be very efficient in correctly handling the intrinsic complexity introduced by the multiscale nature of the evaporation process.This paper aims to provide an overview of published work on SPH-based simulations related to the evaporation of drops suspended in static and convective environments and impacting on heated solid surfaces.After a brief theoretical account of the main ingredients necessary for the modeling of drop evaporation,the fundamental aspects of SPH are revisited along with the various existing formulations that have been implemented to address the challenges imposed by the physics of evaporating flows.In the following sections,the paper summarizes the results of SPH-based simulations of drop evaporation and ends with a few comments on the limitations of the current state-of-the-art SPHsimulations and future lines of research. 展开更多
关键词 Drop evaporation surface tension heat and mass transfer phase separation smoothed particle hydrodynamics(SPH) boiling evaporation explosive vaporization droplet/wall interaction
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Experimental and model research on the evaporation of loess-like sulfate saline soil considering the influence of initial salt content 认领 引用 被引量：1
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作者 ZHANG Yabin CHOU Yaling +2 位作者 ZHAO Dong WANG Lijie ZHANG Peng 《Journal of Arid Land》 SCIE CSCD 2025年第7期912-932,共21页
Intense evaporation in areas with loess-like sulfate saline soils has resulted in significant ecological challenges that include water shortages and soil salinization.Investigating evaporation rate in loess-like sulfa... Intense evaporation in areas with loess-like sulfate saline soils has resulted in significant ecological challenges that include water shortages and soil salinization.Investigating evaporation rate in loess-like sulfate saline soils under varying salt contents carries crucial implications for understanding regional water loss processes,predicting soil salinization advancement,and formulating effective ecological management strategies.Therefore,this study sampled the loess-like sulfate saline soil that is widely distributed in western China as experimental materials and investigated the impact of different initial salt contents(0.00%,0.50%,1.50%,3.00%,and 5.00%)on the evaporation rate,water content,and temperature of soil.The results showed that the evaporation rate decreased with increasing initial salt content.After a salt accumulation layer formed on the soil surface,the water content of the surface soil fluctuated.An increase in the initial salt content resulted in a corresponding increase in the surface temperature.Considering the evaporation characteristics of loess-like sulfate saline soil and the impact of an anomalous increase in surface soil water content on soil surface resistance,this study proposed a modified evaporation model on the basis of Fujimaki's evaporation model of saline soil by introducing a correction coefficientβto modify the soil surface resistance.A comparison of the calculated evaporation rates before and after the modification with the measured evaporation rates revealed a significant improvement in the calculation accuracy of the modified model,indicating that the modified model is capable of more accurately simulating the evaporation rate of sulfate saline soil with different initial salt contents.This paper proposes an effective method for calculating the evaporation rate of loess-like sulfate saline soils,providing a theoretical basis for evaporation research in saline soil. 展开更多
关键词 loess-like sulfate saline soil evaporation rate salt accumulation layer salt crystallization evaporation model soil surface resistance air resistance
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Drainage-induced arch hydrogel-based interfacial evaporator drives long-term stable solar evaporation 认领 引用
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作者 Zexiang Zhao Junqi Li +7 位作者 Fan Wang Puxin Tan Lu Wang Bo Wang Jingjing Jin Xiaoxue Wang Wenhe Zhang Chengbing Wang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2025年第5期540-550,共11页
Hydrogel has developed into a very important platform in solar interface evaporator.However,the current hydrogel evaporators are usually three-dimensional evaporators,which will consume a lot of raw materials.Thus,a n... Hydrogel has developed into a very important platform in solar interface evaporator.However,the current hydrogel evaporators are usually three-dimensional evaporators,which will consume a lot of raw materials.Thus,a new two-dimensional hydrogel evaporator is urgently needed to alleviate this problem.Here,a double layer hydrogel evaporator was designed by twice vacuum filtration.Furthermore,through the arched design and the introduction of concentrated brine drainage system,the hydrogel evaporator has enhanced water transportation and tailored water transportation path.Such a unique drainage evaporation system greatly improves the stability of the evaporator.Thereby,a good balance is established between photothermal conversion and water supply,and solar energy is utilized efficiently.It can remain stable in continuous evaporation for up to 12 h with an excellent evaporation rate of 2.70 kg m-2h-1under 1 sun irradiation.Meanwhile,the drainage system realized the 1.8×10-10mol m-2s-1diffusion flux of concentrated brine.Through one-time freeze-drying preparation,an arch-shaped drainage evaporator was used to prepare an evaporation area of more than 20 cm2.With the self-made condensate collecting device in outdoor environment,the fresh water yield reaches 7.5 L m-2d-1.This provides a new scheme for building a new hydrogel evaporator and solving the fresh water crisis. 展开更多
关键词 Solar evaporation Drainage system Arch hydrogel Salt-tolerant Alginate
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Evaporation of sub-millimeter flying dinitrogen tetroxide droplet under high temperature and pressure:Experimental measurement and theoretical modeling 认领 引用
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作者 Lihan FEI Wu ZHU +3 位作者 Yuyuan ZHANG Peng ZHANG Zuohua HUANG Chenglong TANG 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2025年第5期80-91,共12页
The evaporation behaviors are crucial for the flame location estimation in liquid rocketengines.This work,for the first time,experimentally reports the sub-millimeter droplet evaporationcharacteristics of the corrosiv... The evaporation behaviors are crucial for the flame location estimation in liquid rocketengines.This work,for the first time,experimentally reports the sub-millimeter droplet evaporationcharacteristics of the corrosive dinitrogen tetroxide(NTO,one prevailing hypergolic oxidizer)athigh ambient pressure up to 4.5 MPa.An in-house corrosion-resistant droplet generator is usedto generate isolated flying droplets of sub-millimeter size,which are then exposed in a gas environ-ment with temperatures between 1010 K and 1210 K and pressures in the range between 2.0 MPaand 4.5 MPa,provided by an optical rapid compression machine.Parallelly,a theoretical modelconsidering both the droplet ambient convection and the NTO dissociation is developed.Resultsindicate that firstly,the present theoretical model that considers the transient droplet-ambient con-vection as well as the temperature and pressure dependent rate of dissociation shows good agree-ment with the experimentally observed droplet lifetime.In addition,the flying droplets velocityregress gradually due to momentum exchange with the ambient,which is more prominent at higherpressure.The evaporation caused droplet size reduction is consistent with the classical D2-law pre-diction,in the present temperature and pressure range.Finally,higher temperature and pressureaccelerate the evaporation and an empirical correlation for the temperature and pressure dependentevaporation rate constant is proposed,which shows good agreement with experiment and simula-tion results. 展开更多
关键词 Drops Evaporation Flying isolated droplets Dinitrogen tetroxide High pressure effect
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Effect of Photoresist Biomimetic Surface Roughness on Droplet Evaporation Dynamics 认领 引用
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作者 Zhihao Zhang Xiangcheng Gao Yuying Yan 《Journal of Bionic Engineering》 SCIE EI CSCD 2025年第3期1338-1351,共14页
Control of the wetting properties of biomimetic functional surfaces is a desired functionality in many applications.In this paper,the photoresist SU-8 was used as fabrication material.A silicon wafer was used as a sub... Control of the wetting properties of biomimetic functional surfaces is a desired functionality in many applications.In this paper,the photoresist SU-8 was used as fabrication material.A silicon wafer was used as a substrate to prepare a biomimetic surface with different surface roughness and micro-pillars arranged in array morphology.The evaporation dynamics and interfacial heat transfer processes of deionised water droplets on the bioinspired microstructure surface were experimentally studied.The study not only proves the feasibility of preparing hydrophilic biomimetic functional surfaces directly through photoresist materials and photolithography technology but also shows that by adjusting the structural parameters and arrangement of the surface micro-pillar structure,the wettability of the biomimetic surface can be significantly linearly regulated,thereby effectively affecting the heat and mass transfer process at the droplet liquid-vapour interface.Analysis of the results shows that by controlling the biomimetic surface microstructure,the wettability can be enhanced by about 22%at most,the uniformity of the temperature distribution at the liquid-vapour interface can be improved by about 34%,and the average evaporation rate can be increased by about 28%.This study aims to provide some guidance for the research on bionic surface design based on photoresist materials. 展开更多
关键词 Biomimetics Droplet evaporation Surface roughness Wettability Interfacial phenomenon
An overview of photothermal materials for solar-driven interfacial evaporation 认领 引用 被引量：6
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作者 Yiming Fang Huimin Gao +4 位作者 Kaiting Cheng Liang Bai Zhengtong Li Yadong Zhao Xingtao Xu 《Chinese Chemical Letters》 SCIE CAS CSCD 2025年第3期6-15,共10页
The utilization of solar-driven interfacial evaporation technology is highly important in addressing the energy crisis and water scarcity,primarily because of its affordability and minimal energy usage.Enhancing the p... The utilization of solar-driven interfacial evaporation technology is highly important in addressing the energy crisis and water scarcity,primarily because of its affordability and minimal energy usage.Enhancing the performance of solar energy evaporation and minimizing material degradation during application can be achieved through the design of novel photothermal materials.In solar interfacial evaporation,photothermal materials exhibit a wide range of additional characteristics,but a systematic overview is lacking.This paper encompasses an examination of various categories and principles pertaining to photothermal materials,as well as the structural design considerations for salt-resistant materials.Additionally,we discuss the versatile uses of this appealing technology in different sectors related to energy and the environment.Furthermore,potential solutions to enhance the durability of photothermal materials are also highlighted,such as the rational design of microano-structures,the use of adhesives,the addition of anti-corrosion coatings,and the preparation of self-healing surfaces.The objective of this review is to offer a viable resolution for the logical creation of high-performance photothermal substances,presenting a guide for the forthcoming advancement of solar evaporation technology. 展开更多
关键词 Solar-driven interfacial evaporation Desalination Wastewater treatment Photothermal material Salt-resistance Durability
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Incorporating Co3O4/C modified MnOx/SiO2 into tailored sponge for bifunctional photothermal water evaporation and pollutant degradation 认领 引用 被引量：6
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作者 Ya-Rao Gao Hong-Yao Zhao +6 位作者 Meng-Ting Liu Qian-Nan Liu Yan-Yun Wang Lu-Lu Li Jian-Wei Yuan Yi-Yan Song Fu Yang 《Rare Metals》 SCIE EI CAS CSCD 2025年第2期1122-1138,共17页
In this study,cobalt-incorporated polydopamine coating onto Mn-modified mesoporous silica and successive graphitization treatment make the resulting composite afford abundant porosity,multiple metal active species,pol... In this study,cobalt-incorporated polydopamine coating onto Mn-modified mesoporous silica and successive graphitization treatment make the resulting composite afford abundant porosity,multiple metal active species,polar N sites,and excellent light-to-heat conversion ability.The controlled graphitization temperature was optimized to improve the activity state of metal species.The results reveal that Co3O4 nanoparticles incorporated thin-layer carbon formed onto the Mn-confined mesoporous silica,and more Co(Ⅱ)and Mn(Ⅲ)were generated in the MS-Co-500N2 compared to MS-Co-500Air,which could cause the accelerated reaction cycles in the potassium peroxymonosulfate complex salt(PMS)activation.The degradation experiments demonstrated that the catalyst almost completely degraded biphenol A within 10 min with the reaction rate constant of 0.56 min−1,nearly 205 times enhancement compared to the MS-Co-500Air.The free radicals trapping and quenching control demonstrated the dominant role of 1O2 and·O2 in the degradation process.Due to the efficient incorporation of Co3O4 nanoparticles and thin-layer carbon,the photothermal conversion properties were explored and utilized for solar-driving interface water evaporation and cleanwater recovery.To explore the practical application possibility in treating complicated polluted wastewater,the MS-Co-500N2 materials were fixed on the melamine sponge by Ca ions-trigger alginate crosslinking strategy,and the integrated monolith evaporator shows an excellent water evaporation performance(1.52 kg·m−2·h−1)and synchronous pollutant removal in biphenol A(94%,10 min),carbamazepine(92%,10 min),oxytetracycline(84%,20 min)and norfloxacin(84%,20 min). 展开更多
关键词 Bimetallic synergy Advanced oxidation processes(AOPs) Photothermal conversion Solar water evaporation
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Pickering Emulsion-Driven MXene/Silk Fibroin Hydrogels with Programmable Functional Networks for EMI Shielding and Solar Evaporation 认领 引用 被引量：5
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作者 Guang Yin Jing Wu +3 位作者 Chengzhang Qi Xinfeng Zhou Zhong-Zhen Yu Hao-Bin Zhang 《Nano-Micro Letters》 SCIE EI CAS CSCD 2025年第12期369-382,共14页
Flexible and conformable nanomaterial-based functional hydrogels find promising applications in various fields.However,the controllable manipulation of functional electron/mass transport networks in hydrogels remains ... Flexible and conformable nanomaterial-based functional hydrogels find promising applications in various fields.However,the controllable manipulation of functional electron/mass transport networks in hydrogels remains rather challenging to realize.We describe a general and versatile surfactant-free emulsion construction strategy to customize robust functional hydrogels with programmable hierarchical structures.Significantly,the amphipathy of silk fibroin(SF)and the reinforcement effect of MXene nanosheets produce sable Pickering emulsion without any surfactant.The followed microphase separation and self-cross-linking of the SF chains induced by the solvent exchange convert the composite emulsions into high-performance hydrogels with tunable microstructures and functionalities.As a proof-of-concept,the controllable regulation of the ordered conductive network and the water polarization effect confer the hydrogels with an intriguing electromagnetic interference shielding efficiency(~64 dB).Also,the microstructures of functional hydrogels are modulated to promote mass/heat transfer properties.The amino acids of SF and the surface terminations of MXene help reduce the enthalpy of water evaporation and the hierarchical structures of the hydrogels accelerate evaporation process,expecting far superior evaporation performance(~3.5 kg m-2h-1)and salt tolerance capability compared to other hydrogel evaporators.Our findings open a wealth of opportunities for producing functional hydrogel devices with integrated structure-dependent properties. 展开更多
关键词 MXene Silk fibroin Pickering emulsion Electromagnetic interference shielding Solar-driven evaporation
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Efficient fabrication of fabric-based Janus interfacial evaporator via melt centrifugal spinning for simultaneous solar evaporation,pollutant degradation,antibacterial action,and thermoelectric output 认领 引用 被引量：1
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作者 Yingying Chen Rong Zhou +5 位作者 Hao Wang Xiaowei Ning Yu Du Heng Xie Ting Wu Jinping Qu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2025年第6期385-394,I0009,共10页
Fiber fabrics have been wildly utilized for solar interracial evaporators to address freshwater scarcity.However,the complex and expensive manufacturing processes remain limited to their scalable development.Herein,a ... Fiber fabrics have been wildly utilized for solar interracial evaporators to address freshwater scarcity.However,the complex and expensive manufacturing processes remain limited to their scalable development.Herein,a fabric-based Janus interracial evaporator is efficiently fabricated on a large scale by integrating an extremely innovative self-designed melt-centrifugal spinning technology with spray coating technology.The prepared fabric-based Janus interfacial evaporator has differential hydrophilicity,uneven surfaces,and channels that allow moisture escape.Benefiting from the excellent photothermai conversion of graphene oxide and the charge transfer actions of titanium dioxide,such a multifunction evaporator can reach a high evaporation rate of 1.72 kg m-2h-1under 1 sun irradiation,a superior antibacterial rate of 99%,excellent photocatalytic degradation,and effective thermoelectric ability simultaneously.Moreover,it also shows fantastic performance in salt resistance,recyclable evaporation,and real desalination,This work demonstrates a high-efficiency,cost-effective,multifunctional,and scalable strategy for high-performance fiber fabrics solar interfacial evaporation. 展开更多
关键词 Melt-centrifugal spinning Solar interfacial evaporation Thermoelectric Antibacterial Photocatalytic degradation
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Evaporation-Processed X-Ray Imaging Scintillation Screen Based on Copper Clusters 认领 引用
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作者 Xie Gaozhan Chen Cheng +9 位作者 Zhang Jingru Xiao Dongjie Cai Minyue Gao Qiya Gao Zhisheng Sun Chengxi Li Hui Li Huanhuan Chen Runfeng Tao Ye 《有机化学》 SCIE CAS CSCD 北大核心 2025年第11期4219-4226,共8页
Organic-inorganic hybrid clusters with strong X-ray radioluminescence have exhibited great potential in scintillator field.However,fabricating the X-ray imaging screens of the clusters without sacrificing the scintill... Organic-inorganic hybrid clusters with strong X-ray radioluminescence have exhibited great potential in scintillator field.However,fabricating the X-ray imaging screens of the clusters without sacrificing the scintillation performance is challenging.Herein,we report an effective way to prepare high-quality scintillation films of two synthesized Cu(Ⅰ)clusters through vacuum evaporation deposition.The developed Cu(Ⅰ)clusters with rigid molecular structures show excellent scintillation performance with a high light yield of up to 19356.7 photons/MeV and a low detection limit of 158 nGy/s.The scintillation film based on the Cu(Ⅰ)clusters made by vacuum evaporation deposition is highly uniform with a small surface roughness value of 1.04 nm,which can be applied to X-ray imaging for various objects.These results not only provide important guidance to develop high-performance organic-inorganic hybrid scintillators,but also pave a straightforward way to prepare non-doped scintillation screens for remarkable X-ray imaging applications. 展开更多
关键词 scintillator radioluminescence Cu(Ⅰ)clusters vacuum evaporation deposition X-ray imaging
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