摘要
采用so l-ge l法制备T iO2薄膜光电极,以该电极为工作电极,铂丝为对电极,饱和甘汞电极为参比电极,对双酚A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.外加偏压为+0.8 V、pH=4、0.88 mm o l/L的H2O2中,对初始浓度为0.22 mm o l/L的双酚A溶液光照180 m in,降解率达70.24%.讨论了氧的存在、外加偏压、双酚A浓度和pH值等因素对光电催化反应的影响.
A three-electrode system composed of Ti/TiO2 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 bisphenol A （BPA）, one of the Endocrine Disrupting Chemicals （EDC）. The results show that under the condition of pH = 4, 0. 88 mmol/L H2O2, external potential ＋0.8 V and 180 min irradiation, the rate of photodegration of BPA（0. 22 mmol/L） reaches 70.24%. The influences of various parameters were studied.
出处
《华中师范大学学报（自然科学版）》
CAS
CSCD
2005年第3期365-369,共5页
Journal of Central China Normal University：Natural Sciences
基金
湖北省教育厅重点科研项目(鄂科教2004X121)
湖北省建设厅科技攻关项目(k200308)
作者简介
程沧沧（1950～），男，湖北红安人，副教授，主要从事光催化研究。
