水溶性染料在PbTiO－3体系中的光催化降解  

Photodegtgradation of Water-Soluble Dyes in PbTiO_3 System

作　　者：王俊珍[1] 古凤才[1] 颜秀茹[1] 王建苹 曾淑兰[1] 

机构地区：[1]天津大学化学系

出　　处：《应用化学》1995年第6期29-32,共4页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金及天津市21世纪青年科学基金资助项目

摘　　要：以ＰｂＴｉＯ＿３为光催化剂，对多种水溶性染料的光催化降解反应进行了研究，结果表明：光降解脱色效率与染料溶液的ｐＨ值、光照时间、光源种类及催化剂用量等因素有关。染料溶液浓度为１０ｍｇ／Ｌ，ｐＨ＝６，催化剂用量为１００ｍｇ／５０ｍＬ，直接以太阳光作光源，光照１ｈ以后，脱色率达９０％以上，有机染料中硫和氮元素转化为ＳＯ和ＮＯ的生成率分别为８５％和６５％。The photocatalytic destruction and decolorization of several water-soluble dyesunder natural sun light and 450W high pressure Hg-lamp irradiation in the presence of photo-catalyst PbTiO_3 were studied.The experiments show that the efficiency of decolorization isrelated to the pH value of dye solution,irradiation time,as well as the intensity of irradia-tion. After irradiation with sun light for 1h,the decolorizing efficiency was up to 90% whenthe concentration of dyes was 10mg/L and the amount of catalyst was 100mg in 50mL dyesolution.

关 键 词：水溶性染料 光催化降解 钛酸铅 

分 类 号：TQ615[化学工程—精细化工]