以陶瓷-活性炭为载体的光催化剂降解苯酚研究  

Study on Degradation of Phenol Using Photocatalyst Coated on Ceramic-Activated-Carbon Substrates

作　　者：李书珍[1] 刘卫民[1] 徐佳月 胡以强[3] 

机构地区：[1]上海应用技术学院化学与环境工程学院,上海200235 [2]海盐县环境监测站,浙江海盐314300 [3]华东理工大学机械与动力工程学院,上海200237

出　　处：《安徽师范大学学报（自然科学版）》2011年第6期549-553,共5页Journal of Anhui Normal University(Natural Science)

基　　金：上海市教育委员会科研创新项目(09YE388);上海应用技术学院人才引进科研项目(YJ2011-61)

摘　　要：采用浸渍法将TiO2溶胶涂覆于陶瓷-活性炭载体,得到陶瓷-活性炭负载TiO2光催化剂.以苯酚废水为模拟目标降解物,采用紫外杀菌灯为实验光源,对光催化剂进行了光降解性能的研究.考察了TiO2负载次数、溶液pH值、苯酚初始浓度以及陶瓷-活性炭载体特性等因素对陶瓷-活性炭为载体的TiO2光催化剂降解苯酚的影响.结果表明,负载两次得到的复合光催化剂表现出良好的活性与稳定性.对初始浓度为50mg/L,初始pH值为6.5的苯酚废水的降解效率最好,处理6h后降解率达到97.31%.TiO2/ceramic-aetivated-carbon photocatalyst was prepared by dip-coating method with the TiO2 sol, using ceramic-activated-carbon as support. The photocatalytic property of photocatalyst was studied on degradation of phenol wastewater with the ultraviolet lampas as experimental light resource. The influences of TiCh sol coat time, initial pH value and initial concentration of phenol solution and character of ceramicactivated-carbon were investigated. It indicated the experimental result that TiO2/ceramic-activated-carbon photocatalyst fabricated by loading TiO2 sol twice possessed the character of the higher activity and stability. Degradation rate of phenol was about 97.31% at the original concentration of phenol solution 50 mg/L, the initial pH value of 2.5 and illumination time of 6 hours.

关 键 词：TIO2 陶瓷-活性炭 溶胶-凝胶 苯酚废水 

分 类 号：X703[环境科学与工程—环境工程]