铁(Ⅲ)-草酸盐配合物对水溶性染料的光降解研究  

Study on photodegradatio of water-soluble dyes in aqueous solution by the ferric(Ⅲ)-oxalate complexs

作　　者：刘彬[1] 陈雪梅[1] 郭建林[1] 

机构地区：[1]黄石高等专科学校环境与化学工程系,湖北黄石435003

出　　处：《化学工程师》2004年第5期8-10,共3页Chemical Engineer

摘　　要：铁 -草酸盐配合物在高压汞灯 (λ =313nm)的照射下 ,可使活性艳红X3-B和活性黑K -BR染料水溶液脱色降解。染料初始浓度在 10～ 5 0mg·L-1范围 ,脱色降解过程具有一级反应动力学特征 ,脱色降解速率随染料初始浓度的增大而降低。在 2 .0～ 3.0时 ,染料的脱色降解效果最佳。铁The photodegradation 0f dye C.I. reactive red 2 and C.I. reactive black 8 can be accelerated in aqueous solutions containing Fe(Ⅲ)-oxalate complexes, under near-UV-light irradiation (λ=313nm).The photodegrada-tion of dyes solutions in initial concentration range 10～50mg·L -1 is pseudo-first order reaction, and the photodegradation rate decrease with increasing the dye concentration. Optimum pH of photodegradation of dyes solutions for C.I. reactive black 8, C.I. reactive red respectively is 3.0～4.0. The Fe(Ⅲ)/oxalate ratio have effects on the discoloration.

关 键 词：染料废水 光降解技术 铁-草酸盐 废水处理技术 环境保护 色度 有机物 

分 类 号：X788.03[环境科学与工程—环境工程]