环境工程学报2012，Vol.6Issue(4)：1235-1240,6.
铁及铁铜氧化物对臭氧氧化酸性红B的催化效能
Catalytic ozonation of Acid Red B in aqueous solution with Fe and Fe-Cu composite oxide
摘要
Abstract
The iron oxides and Fe-Cu composite oxide catalysts were synthesized through a nitrate-citrate combustion route.These catalysts were used in catalytic ozonation of Acid Red B,and their performance was compared with conventional ozonation.The effects of magnetic stirring speed（500~1 640 r/min）,solution pH（3~11） and ozone flow（3.55~28.4 mg/min） on color and COD removal were investigated in catalytic ozonation using Fe-Cu composite oxide as catalysts.The results indicated that the adding of iron oxides and Fe-Cu composite oxide catalysts into the ozonation reactor obviously accelerated the rate of Acid Red B degradation,thereby improved the reduction of color and COD compared to conventional ozonation.Combined with the results of catalysts characterization,it can be inferred that the hydroxyl groups on the catalysts’ surface accelerated the ozone decomposition,which resulted in the generation of hydroxyl radicals.This might be the main reason for the better oxidation with catalysts.In addition,catalyst’s adsorption capacity also had some impact on oxidation ability.In Fe-Cu composite oxide catalytic ozonation process,with the increase of magnetic stirring speed,solution pH,ozone flow,the removal rate of Acid Red B and COD increases.关键词
催化氧化/自蔓延溶胶凝胶法/铁铜复合氧化物/臭氧氧化/酸性红BKey words
catalytic oxidation/nitrate-citrate combustion route/Fe-Cu composite oxide/ozonation/Acid Red B分类
资源环境引用本文复制引用
周作明,方俊辉,荆国华..铁及铁铜氧化物对臭氧氧化酸性红B的催化效能[J].环境工程学报,2012,6(4):1235-1240,6.基金项目
基金项目：长江水环境教育部重点实验室开放基金项目 （）
福建省自热科学基金项目 （）
