几种试剂对硝酸根光催化脱色甲基橙的影响  

Influence of several reagents on photocatalytic decolorization of methyl orange with NO_3^-

作　　者：李建章[1] 冯发美[1] 蒋维东[1] 曾俊[1] 黄生田[1] 

机构地区：[1]四川理工学院化学系催化研究所,自贡643000

出　　处：《环境工程学报》2009年第5期854-856,共3页Chinese Journal of Environmental Engineering

基　　金：四川省教育厅重大培育项目(07ZZ020)

摘　　要：以NO3-为光催化剂,在紫外灯照射下,对甲基橙溶液进行光催化脱色。结果表明,叔丁醇、甲醇和乙醇对催化脱色反应有抑制作用;KB r和Na2SO4对脱色反应均有促进作用;而且KB r的加入量存在最佳值;Na2SO4的促进作用随Na2SO4的量的增加逐渐增强。Na2CO3的存在对甲基橙的脱色反应没有影响。K2S2O8和NO3-之间存在较强的协同作用;K IO3和NO3-之间存在相加作用;KB rO3和NO3-之间存在拮抗作用。The NO3- was used to decolorize the methyl orange （MO） solution with ultraviolet radiation. Influence of several reagents on photocatalytic decolorization of methyl orange with NO3- was investigated. The resuits indicate that t-BuOH, ethanol and methanol can press the decolorization reaction, KBr and Na2SO4 can pro- mote the decolorization reaction, there is an optimal amount of KBr in this case and the effects of Na2SO4 in- crease with the concentrations, while Na2CO3 has no obvious influence on the decolorization reaction. The synergy between K2S208 and NO3- is very strong. There is no synergy between KIO3and NO3-, while there is inhibitation between KBrO3and NO3-.

关 键 词：NO3- 光催化脱色 甲基橙 染料废水 试剂 

分 类 号：TQ032[化学工程]