超声协同纳米TiO_2光催化降解活性染科的初步研究  

Primary Study of Ultrasonically Enhanced Photocatalytic Degradation of Reactive Dye with Nano TiO_2

作　　者：安太成[1] 顾浩飞[1] 陈卫国[1] 熊亚[1] 朱锡海[1] 刘国光 

机构地区：[1]中山大学化学与化学工程学院,广东广州510275 [2]河南省环境科学与工程重点学科开放实验室,河南新乡453002

出　　处：《中山大学学报（自然科学版）》2001年第5期131-132,共2页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金资助项目(29977030);河南省环境科学与工程重点学科开放实验室资助项目;广东省自然科学基金资助项目(9

摘　　要：将超声氧化与多相光催化技术相结合并且用于活性染料的降解，实验发现超声增强光催化技术可以有效降解该活性染料，而且在超声增强光催化体系中存在较强的协同催化降解作用，The ultrasonically enhanced photoeatalytic degradation of reactive dye with nano TiO2 was investigated. It was found that the sono photocatalytic reactor could effectively destroy the reactive dye. A high decolorization ratio of 100% with a COD concentration reduction of about 87.5% was obtained during 150 mm in the presence of both nano photocatalyst and ultrasonic. The results also show that the ultrasonically enhanced photocatalytic process is more efficient than the single application of ultrasonic oxidation or photocatalytic degradation, and an apparent syn- ergic effect in the COD removal efficiency as well as decolorization efficiency was observed by combining the ultra- sonic oxidation with photocatalytic process in the new-designed reactor.

关 键 词：光催化氧化 超声氧化 超声协助光催化 协同作用 活性染料 降解作用 有机污染物 

分 类 号：O643.3[理学—物理化学] X5[理学—化学]