电催化氧化降解内分泌干扰物阿特拉津 |
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引用本文: | 魏金枝,冯玉杰,刘峻峰,吕江维.电催化氧化降解内分泌干扰物阿特拉津[J].哈尔滨工业大学学报,2010,42(12):1887-1891. |
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作者姓名: | 魏金枝 冯玉杰 刘峻峰 吕江维 |
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作者单位: | 哈尔滨工业大学城市水资源与水环境国家重点实验室;哈尔滨理工大学化学与环境工程学院黑龙江省高校绿色化工技术重点实验室;哈尔滨工业大学城市水资源与水环境国家重点实验室;哈尔滨工业大学城市水资源与水环境国家重点实验室;哈尔滨工业大学城市水资源与水环境国家重点实验室 |
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基金项目: | 国家自然科学基金资助项目(50368020);黑龙江自然科学基金资助项目(B200806) |
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摘 要: | 为探索一种降解阿特拉津的新型有效方法,以Sb掺杂钛基SnO2电极为阳极,不锈钢板为阴极,采用电催化氧化技术对阿特拉津废水进行降解,研究不同影响因素对阿特拉津降解效果的影响,并分析阿特拉津的降解途径.结果表明:当电流密度为200 A/m2、阿特拉津初始质量浓度为10 mg/L、溶液pH值为6.97、反应30 min后,阿特拉津去除率达100%,此时能耗仅为6.67×10-2kWh/g.阿特拉津的电催化氧化降解过程主要为脱烷基、脱氯-羟基化、烷基氧化等反应,伴随着阿特拉津的降解,生成OHA、DAA、ANE等一系列中间产物.电催化氧化方法可经济、有效地去除水中阿特拉津.
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关 键 词: | 阿特拉津 电催化氧化 内分泌干扰物 降解途径 |
Degradation of endocrine disruptor atrazine by electrocatalytic oxidation |
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Affiliation: | State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090, China;Key Laboratory of Green Chemical Technology of College of Heilongjiang Province,College of Chemical and Environmental Enginneering,Habin University of Science and Technology,Harbin 150040,China;State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090, China;State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090, China;State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090, China |
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Abstract: | To find a new effective method of degradation of atrazine,the degradation was studied by electrocatalytic oxidation of atrazine in water,and Sb doped Ti/SnO2 electrode was used as anode and stainless steel plate as cathode.The main influencing factors and degradation pathway of atrazine were discussed.Results showed that when current density was 200 A/m2,initial concentration of atrazine was 10 mg/L and pH value was 6.97,100% atrazine was removed within 30 min.Meanwhile,power consumption was only 6.67×10-2 kWh/g.The primary degradation process is dealkylation,dechlorinationa and alkylic-oxidation,and a series of intermediate products such as OHA,DAA,ANE were produced during the process of electrocatalytic oxidation of atrazine.The results suggest that electrocatalytic oxidation method can be cost-effective removal atrazine. |
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Keywords: | atrazine electrocatalytic oxidation endocrine disruptor degradation pathway |
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