[Study on photo-fenton reagent oxidation processes used in the degradation of direct fast light black G].
Photo-Fenton reagent can degradate dye well. In the present paper, some main factors such as different light sources, the initial pH value, the dosage of Fe2+ and H2O2, the cation-exchange resin, etc. , which have great influences on degradation, were researched. Through numerous experiments, the optimum condition for dye direct fast light black G degradation was given. The results of the research were as follows: the sunlight can promote this reaction apparently, and the reaction time can greatly be shortened; Under optimal conditions, after the cation-exchange resin was introduced into the Fenton system, the activation of Fenton reagent for degradation reaction was enhanced to a great extent, the degradation effect of direct fast light black G was better, and the ratio of color removal was more than 94% within 40 min.
Zheng
Huai-li
HL
College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China.
Liu
Hong
H
Li
Fang
F
Huang
Yu-ming
YM