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TiO2薄膜光催化降解邻苯二甲酸乙酯的研究
Study on Photocatalytic Degradation of Diethyl Phthalate with TiO2 Thin Film
【摘要】 采用solgel法制备TiO2薄膜。以该薄膜为催化剂,研究了在H2O2存在的条件下,对内分泌干扰物质邻苯二甲酸乙酯(DEP)的光催化降解反应。分别讨论了pH值、H2O2的加入量、DEP的初始浓度以及光照时间对降解反应的影响。结果表明在pH=2、50mg/L的H2O2中对初始浓度为50mg/L的DEP溶液光照150min有较好的降解效果。
【Abstract】 The photocatalytic degradation of diethyl phthalate (DEP). one of the Endocrine Disrupting Chemicals (EDO, was studied, with TiO2 thin film prepared by sol-gel method as photocatalyst and a 125W mercury lamp as ultraviolet light source. The influences of various parameters were studied. Results showed that the best photodegradation of DEP is under the condition of pH 2, 50mg/L H2O2 and 150min irradiation.
【关键词】 TiO2薄膜;
光催化;
邻苯二甲酸乙酯;
【Key words】 TiO2 thin film; photocatalytic degradation; diethyl phthalate;
【Key words】 TiO2 thin film; photocatalytic degradation; diethyl phthalate;
【基金】 湖北省教育厅2004年重点科研项目(2004x121);湖北省建设厅2003年科技攻关项目(k200308)
- 【文献出处】 环境科学与技术 ,Environmental Science and Technology , 编辑部邮箱 ,2005年04期
- 【分类号】X783
- 【被引频次】19
- 【下载频次】230