Ti/SnO_2-Sb_2O_5/PbO_2阳极电化学氧化降解苯甲酸研究  

Electrochemical Degradation of Benzoic Acid by Anodic Oxidation on Ti/SnO_2-Sb_2O_5/PbO_2 Electrodes

作　　者：蔡国君[1,2] 沈钢[1] 王波燕 黄成翔[2] 范铮[2] 

机构地区：[1]台州市环境保护局,浙江台州318020 [2]浙江工业大学生物与环境工程学院,杭州310032 [3]舟山市固体废物管理中心,浙江舟山316003

出　　处：《环境科学与技术》2011年第7期17-19,共3页Environmental Science & Technology

基　　金：国家自然科学基金项目资助(20977086)

摘　　要：文章研究了Ti/SnO2-Sb2O5/PbO2在两室电解池中氧化降解苯甲酸的性能,主要考察了电流密度、初始pH值、初始苯甲酸浓度和支持电解质这四个参数对TOC去除效率的影响。实验表明在电流密度为30 mA/cm2,初始苯甲酸浓度为0.5 mmol/L,支持电解质(Na2SO4)为0.1 mol/L的条件下,经过6 h反应,TOC去除效率达到65%。初始pH值对TOC去除没有显著的影响。Electrochemical performance of Ti/SnO2-Sb2O5/PbO2 electrodes in the oxidation of simulated wastewater containing benzoic acid using a two-compartment electrochemical system was investigated.Influence of operating variables on TOC removal efficiency was studied as a function of current density,initial pH,initial benzoic acid concentration and supporting electrolyte concentration.Under the conditions of a density current of 30 mA/cm^2,initial benzoic acid concentration of 0.5 mmol/L,supporting electrolyte concentration（Na2SO）4of 0.1 mol/L and after 6h reaction,TOC removal efficiency was up to 65%.And no significant effect of initial pH on TOC removal could be observed.

关 键 词：Ti/SnO2-Sb2O5/PbO2 阳极氧化 苯甲酸 高级氧化技术 电化学 

分 类 号：X131.1[环境科学与工程—环境科学]