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,(4):241-245
光电催化降解邻苯二甲酸二乙酯的研究
Study on Photoelectrocatalytic Degradation of Diethyl Phthalate
投稿时间:2004-12-20  修订日期:2005-01-30
DOI:
中文关键词:  光电催化  TiO2/Ti电极  邻苯二甲酸二乙酯
英文关键词:Photoelectrocatalysis  Ti/TiO2 Electrode  Diethyl phthalate
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
程沧沧  邓南圣  吴峰  刘立  周菊香  胡德文
[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
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中文摘要:
      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。
英文摘要:
      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.
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