改性TiO_2光催化膜的制备及其光催化降解2,4-DCP的研究  

STUDY ON THE CATALYST PREPARATION OF MODIFIED TiO_2 FILM AND THE DEGRADATION OF 2,4-DICHLOROPHENOL

作　　者：庄惠生[1] 周璇[1] 

机构地区：[1]东华大学环境科学与工程学院,上海200051

出　　处：《环境化学》2005年第6期654-658,共5页Environmental Chemistry

基　　金：国家自然科学基金资助项目(20277005).

摘　　要：利用活性炭粉末对TiO2光催化剂进行改性,并对2,4-二氯苯酚进行光催化降解.结果表明,改性后TiO2光催化剂的光催化活性较之改性前有很大的提高.在pH=10,活性炭粉末掺杂量为10mg·ml-1时,300W高压汞灯下光催化降解120min,2,4DCP的去除率可达96.75%.In this paper, the TiO2 photocatalyst modified with active carbon powder was investigated and the photocatalytic decomposition of 2,4-dichlorophenol was also carried out. It was shown that photocatalytic activity of TiO2 was significantly improved by modifying. While under the conditions of pH value being 10, active carbon powder doping content of 10mg · ml^-1, the ultraviolet （UV） lamp 300W and illuminate time 120 min, the 2,4-dichlorophenol removal rate can achieve 96.75%.

关 键 词：光催化 2 4-二氯苯酚 二氧化钛 活性炭. 

分 类 号：X132[环境科学与工程—环境科学]