摘要
本研究以高压汞灯为光源,系统地研究了16种偶氮染料在水溶液中的TiO_2光催化降解,结果表明,这些偶氮染料的光解为一级动力学反应,采用TiO_2光催化降解方法处理所研究的偶氮染料是可行的,井初步探讨了染料的结构与光解反应表观速率常数之间的关系。
Photocatalytic degradation of 16 azo-dyes in TiO2 suspension and irradiated by a high pressure mercury lamp has been studied. The results show that the use of photocatalytic reaction to treat wastewater containing azo-dyes is feasible, and the photocalytic reaction of each azo-dye follows pseudo-first-order kinetics. The initial qualitative relationships between molecular structure and the determined pseudo-first-order photocatalytic degradation rate constants for the azo-dyes under study are discussed.
出处
《环境化学》
CAS
CSCD
北大核心
1999年第3期254-257,共4页
Environmental Chemistry
基金
国家自然科学基金(No.29807001)
辽宁省自然科学基金(No.962118)
