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光电催化降解邻苯二甲酸二乙酯的研究
引用本文:程沧沧,邓南圣,吴峰,刘立,周菊香,胡德文.光电催化降解邻苯二甲酸二乙酯的研究[J].分子催化,2005,19(4):241-245.
作者姓名:程沧沧  邓南圣  吴峰  刘立  周菊香  胡德文
作者单位:1. 江汉大学,化学与环境工程学院,湖北,武汉,430056
2. 武汉大学,资源与环境学院,湖北,武汉,430072
基金项目:湖北省教育厅科研项目;湖北省建设厅科技攻关项目
摘    要:采用sol-gel法制备TiO2薄膜光电极,以该电极为工作电极,铂丝作对电极,饱和甘汞电极为参比电极,对邻苯二甲酸乙酯的光电催化降解进行了研究。结果表明:该电极具有n型半导体的特征行为,在外加偏压为+0.7v、pH=2、50mg/L的H2O2中对初始浓度为50mg/L的DEP溶液光照180min降解率达67.85%,讨论了氧的存在、外加偏压等因素对光电催化反应的影响。

关 键 词:光电催化  TiO2/Ti电极  邻苯二甲酸二乙酯
文章编号:1001-3555(2005)04-0241-05
收稿时间:2004-12-20
修稿时间:2005-01-30

Study on Photoelectrocatalytic Degradation of Diethyl Phthalate
CHENG Cang-cang,Deng Nan-sheng,WU Feng,LIU Li,ZHOU Ju-xiang,HU De-wen.Study on Photoelectrocatalytic Degradation of Diethyl Phthalate[J].Journal of Molecular Catalysis (China),2005,19(4):241-245.
Authors:CHENG Cang-cang  Deng Nan-sheng  WU Feng  LIU Li  ZHOU Ju-xiang  HU De-wen
Abstract:This study presents degradation of DEP in water by photoelectrocatalysis using Ti/TiO_ 2 photoelectrode. A three-electrode system composed of Ti/TiO_ 2 prepared by sol-gel method as the working electrode, Pt wire as the counter electrode and saturated calomel electrode (SCE) as the reference electrode was used for the photoelectrocatalytic degradation of DEP. The results show that under the condition of pH2 , 50 mg/L H_ 2O_ 2, external potential +0.7v and 180 min irradiation, the degradation rate of DEP (initial concentration 50 mg/L) reaches 67.85%. The influences of various parameters were investigated.
Keywords:Photoelectrocatalysis  Ti/TiO2 Electrode  Diethyl phthalate
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