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Preparation and application of pharmaceutical wastewater treatment by praseodymium doped SnO_2/Ti electrocatalytic electrode 认领 引用 被引量：16
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作者 韩国成 刘峥 王永燎 《Journal of Rare Earths》 SCIE EI CAS 2008年第4期532-537,共6页
Praseodymium was selected as a promoter for SnO2/Ti electrode to improve the electrocatalytic performance by electrodeposition in pharmaceutical wastewater treatment; the micrograph and the structure were characterize... Praseodymium was selected as a promoter for SnO2/Ti electrode to improve the electrocatalytic performance by electrodeposition in pharmaceutical wastewater treatment; the micrograph and the structure were characterized by SEM and XRD. Mixture uniform design was used in the optimization of the electrolytic conditions; mathematical model was established according to the rate of wiping COD off, which revealed the relationship between the current intensity, time of electrolysis, the amount of doped Pr, and the ratio of area （SnOJTi：Al）. On the basis of the analysis of the empirical model, the optimized parameters had been obtained; the rate of wiping COD off was up to 94.9%, it decreased from 392 to 20 mg/L. Experimental results showed that the electrocatalytic performance of the electrode doped with Pr was superior for the treatment of pharmaceutical wastewater. 展开更多
关键词 SnO2/Ti electrode electrocatalytic mixture uniform design pharmaceutical wastewater rare earths
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A high activity of Ti/SnO_2-Sb electrode in the electrochemicaldegradation of 2,4-dichlorophenol in aqueous solution 认领 引用 被引量：5
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作者 Junfeng Niu Dusmant Maharana +2 位作者 Jiale Xu Zhen Chai Yueping Bao 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2013年第7期1424-1430,共7页
Electrochemicaldegradation of2,4-dichlorophenol （2,4-DCP） in aqueous solutionwas investigated over Ti/SnO2-Sb anode. The factors influencing thedegradation rate, such as applied currentdensity （2-40 mA/cm2 ）, pH ... Electrochemicaldegradation of2,4-dichlorophenol （2,4-DCP） in aqueous solutionwas investigated over Ti/SnO2-Sb anode. The factors influencing thedegradation rate, such as applied currentdensity （2-40 mA/cm2 ）, pH （3-11） and initial concentration （5-200 mg/L）were evaluated. Thedegradation of2,4-DCP followed apparent pseudo first-order kinetics. Thedegradation ratio on Ti/SnO2 -Sb anode attained 〉 99.9% after 20 min of electrolysis at initial 5-200 mg/L concentrations at a constant currentdensity of 30 mA/cm2 with a 10 mmol/L sodium sulphate （Na2SO4 ） supporting electrolyte solution. The results showed that 2,4-DCP （100 mg/L）degradation and total organic carbon （TOC） removal ratio achieved 99.9% and 92.8%, respectively, at the optimal conditions after 30 min electrolysis. Under this condition, thedegradation rate constant （k） and thedegradation half-life （t1/2 ）were 0.21 min1 and （2.8 ± 0.2） min, respectively. Mainly carboxylic acids （propanoic acid, maleic acid, propanedioic acid, acetic acid and oxalic acid） weredetected as intermediates. The energy efficiencies for2,4-DCPdegradation （5-200 mg/L）with Ti/SnO2-Sb anode ranged from 0.672 to 1.602 g/kWh. The Ti/SnO2-Sb anodewith a high activity to rapid organic oxidation could be employed todegrade chlorophenols, particularly2,4-DCP inwastewater. 展开更多
关键词 2 4-dichlorphenol Ti/SnO2 -Sb electrode electrochemicaldegradation total organic carbon
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M-Ti/TNTs/SnO 2电极对煤化工二级出水性能的影响 认领 引用
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作者 钟子楠 刘婷婷 +1 位作者 黄琳琳 熊楚安 《黑龙江科技大学学报》 CAS 2025年第2期211-217,共7页
为考察电催化氧化处理煤化工二级出水的性能,采用阳极氧化法制备了网状Ti/TNTs/SnO 2电催化电极,以煤化工二级出水为研究对象,研究不同因素对COD和TOC去除率的影响。结果表明:该电极表面形貌致密无裂痕,其电极加速寿命可达107.6 h;采用... 为考察电催化氧化处理煤化工二级出水的性能,采用阳极氧化法制备了网状Ti/TNTs/SnO 2电催化电极,以煤化工二级出水为研究对象,研究不同因素对COD和TOC去除率的影响。结果表明:该电极表面形貌致密无裂痕,其电极加速寿命可达107.6 h;采用此电极处理未达标的煤化工二级出水时,当电极之间的距离设定为10 mm且电流密度维持在10 mA/cm2,反应4 h后,COD和TOC去除率可达到81.8%和64.2%,出水达到工业用水标准,符合企业回用排放水质ρCOD≤30 mg/L的要求。 展开更多
关键词 煤化工二级出水 网状Ti/TNTs/SnO 2电极 电催化氧化
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Electrochemical Oxidation of Chlorimuron-ethyl on Ti/SnO_2-Sb_2O_5/PbO_2 Anode for Waste Water Treatment 认领 引用
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作者 YU Shi-jun XUE Bin +2 位作者 WANG Jian-ya SUN Jian SHEN Zhi-qiu 《Chemical Research in Chinese Universities》 SCIE CAS 2010年第4期630-635,共6页
The electrochemical oxidation of chlorimuron-ethyl on metry. The electrochemical behaviour of the electrode in a sodium Ti/SnO2-Sb2O5/PbO2 electrode was studied by cyclic voltamsulfate solution and in the mixture solu... The electrochemical oxidation of chlorimuron-ethyl on metry. The electrochemical behaviour of the electrode in a sodium Ti/SnO2-Sb2O5/PbO2 electrode was studied by cyclic voltamsulfate solution and in the mixture solution of sodium sulfate and chlorimuron-ethyl was studied. The experimental results of cyclic voltammetry show that the acidic medium was suitable for the efficient electrochemical oxidation of chlorimuron-ethyl. Some electro-generated reagent was formed in the electrolysis process and chlorimuron-ethyl could be oxidized by the electro-generated reagent. A Ti/SnO2-Sb2O5/PbO2 electrode was used as the anode and the electrolysis experiment was carried out under the optimized conditions. The electrolysis process was monitored by UV-Vis spectrometry and high performance liquid chromatography（HPLC）, and the chemical oxygen demand（COD） was determined by the potassium dichromate method. The mechanism of chlorimuron-ethyl to be oxided was studied primarily by the cyclic voltammetry and UV-Vis spectrometry. The results of electrolysis experiment demonstrate the possibility of the electrode to be used as an anode for the electrochemical treatment of chlorimuron-ethyl contained in waste water. 展开更多
关键词 Ti/SnO2-Sb2O5/PbO2 electrode Chlorimuron-ethyl Cyclic voltammetry Electrochemical oxidation Waste water treatment
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苯酚溶液电解降解的过程分析及中间体的研究 认领 引用 被引量：9
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作者 赵国华 周兵 朱仲良 《同济大学学报（自然科学版）》 EI CAS 北大核心 2000年第5期597-599,625,共3页
电解降解有机污染物的方法由于其特殊的优点 ,已被广泛应用于包括含酚废水在内的废水处理中 .以苯酚水溶液作为研究对象 ,以Ti/SnO2 +Sb2 O3电极为阳极 ,对苯酚水溶液进行电解降解处理 ,对反应过程进行跟踪 ,并利用HP8453UV -Vis分光光... 电解降解有机污染物的方法由于其特殊的优点 ,已被广泛应用于包括含酚废水在内的废水处理中 .以苯酚水溶液作为研究对象 ,以Ti/SnO2 +Sb2 O3电极为阳极 ,对苯酚水溶液进行电解降解处理 ,对反应过程进行跟踪 ,并利用HP8453UV -Vis分光光度计和HP 1 1 0 0液相色谱仪对不同反应时间的样品进行分析 ,作出了苯酚电解降解过程中不同反应时间的吸收曲线 ,获得了苯酚降解的动力学方程 ,并对反应的机理及中间体进行了研究 ,分别从色谱分析及紫外吸收光谱两个角度证实了电解过程中存在中间体 ,绘出了中间体的动力学曲线 . 展开更多
关键词 苯酚 电解降解 中间体 过程分析 废水处理
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