Mechanism and kinetics model of degradation of synthetic dyes by UV-vis/H2O2/ferrioxalate complexes

被引:65
作者
Dong, Xiaoli
Ding, Wei
Zhang, Xiufang
Liang, Xinmiao [1 ]
机构
[1] Chinese Acad Sci, Dalian Inst Chem Phys, Grp 1083, Dalian 116023, Peoples R China
[2] Dalian Inst Light Ind, Dalian 116034, Peoples R China
关键词
photocatalysis; dye; degradation; kinetics;
D O I
10.1016/j.dyepig.2006.03.008
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The kinetics of photocatalytic degradation of Reactive Brilliant blue KN-R, Acid Scarlet GR and Reactive Brilliant red X-3B by UV-vis/ H2O2/Ferrioxalate complexes were studied. Effects of initial concentration of KN-R solution, Fe2+, H2O2, and pH were investigated. Under these optimum experimental conditions, the removal rates of COD and TOC of three dyes were more than 80% and 65%. A pseudo-first-order kinetic model was adopted to represent the reaction. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:470 / 476
页数:7
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