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涂覆法制备TiO2薄膜光电极及催化性能研究
引用本文:郭向丹,樊彩梅,郝晓刚,孙彦平.涂覆法制备TiO2薄膜光电极及催化性能研究[J].太原理工大学学报,2002,33(6):578-582.
作者姓名:郭向丹  樊彩梅  郝晓刚  孙彦平
作者单位:太原理工大学化学工程与技术学院
基金项目:国家自然科学基金资助项目 (2 0 0 0 60 11),山西省自然科学基金资助项目 (9910 15 .2 0 0 0 10 13 )
摘    要:用涂覆法制备了TiO2薄膜光电极,并对其进行了XRD和SEM的表征。以该电极为工作电极,铜片为电极,饱和甘汞电极为参比电极,建立了三电极光电催化体系,研究了此TiO2薄膜的光电催化性能以及外加偏压对反应速率的影响。结果表明:利用涂敷法制备TiO2薄膜电极是一种较好的方法;外加偏压可抑制光生电子-空穴的复合,提高苯酚的光催化效率;外加阳极偏压的光学催化速率优于外加阴极偏压的速率;在一定范围内,外加阴极偏压越大,苯酚的降解速率越快。

关 键 词:涂覆法  制备  TiO2薄膜光电极  催化性能  二氧化钛  光电催化速率  苯酚  废水处理
文章编号:1007-9432(2002)06-0578-05
修稿时间:2002年7月9日

Study on Preparation of TiO2 Thin Film Photoelectrode by Coating Technique and Its Photoelectrocatalytic Property
Guo Xiangdan,Fan Caimei,Hao Xiaogang,Sun Yanping.Study on Preparation of TiO2 Thin Film Photoelectrode by Coating Technique and Its Photoelectrocatalytic Property[J].Journal of Taiyuan University of Technology,2002,33(6):578-582.
Authors:Guo Xiangdan  Fan Caimei  Hao Xiaogang  Sun Yanping
Institution:College of Chemical Engineering & Technology of TUT
Abstract:Ti/TiO 2 thin film photoelectrode was prepared by coating technique and was characterized by XRD and SEM. The photoelectrochemical system consisted of three electrodes: TiO 2 was working electrode, Cu as the counter electrode and saturated calomel electrode as the reference electrode. The photoelectrocatalytic property of this TiO 2 thin film and effects of the added bias on the reaction rate was studied. The results indicated that the coating technique is a good method for preparing TiO 2 thin film electrode; the added anodic bias could improve the photocatalytic degredation efficiency of phenol; the degredation rate under anodic bias is quicker than that under cathodic bias; and in our research range, the rates of photoelectrocatalysis were increased with the increasing anodic bias.
Keywords:thin film photoelectrode  titanium dioxide  photoelectrocatalysis  phenol
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