文献类型：会议论文

中文题名：Combinative Degradation of PAEs Solution with Sonolysis and Visible-Light Photocatalysis

作者：YANG Wei[1];ZHAO Yi-xian[1];DING Lei[1];SHENG Zhao-qi[1];SHENG Mei[1];JIANG Xiao-feng[1];

机构：[1]School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China;

会议论文集：The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)论文集

会议日期：20080804

会议地点：大连

主办单位：中国化工学会;中国化工企业管理协会;中国石油和化学工业协会

语种：英文

中文关键词：S, N-codoped TiO2;Photodegradation;Sonolysis;PAEs Solution

摘要：TiO2 co-doped with nitrogen and sulfur was prepared in the tests by using thiourea and urea as S-N source, tetrabutyl titanate as precurso. The photodegradation of PAEs solution was investigated by comparison experiments in room temperature, which was under the irradiation of visible light catalyzed by S,N-codoped Ti0 and ultrasonic action. The results showed that the S,N-codoped TiO2 had excellent absorption for visible light, and the photodegradation efficiency of PEAs solution under the irradiation of visible light was enhanced by the existence of sonolysis. When the reaction solution contained 250mL PAEs (30mg/L DMP+30mg/L DEP), the visible-light photocatalysis(vis photocatalysis) degradation efficiencies were 34.4% (DMP) and 33.3% (DEP) within 250min with S,N-codoped TiO2, but only 3.9%(DMP) and 3.5%(DEP) with undoped TiO2 . When sonolysis was used in combination with vis photocatalysis, in 150min, the degradation efficiency for the combined effect was higher than individual effect of vis photocatalysis by more than 80%. Thus, the degradation reaction time was shortened greatly and PAEs solution was treated effectively.