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-.
出处
《环境工程学报》
CAS
CSCD
北大核心
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)
关键词
NO3-
光催化脱色
甲基橙
染料废水
试剂
NO3-
photocatalytic decolorizaation
methyl orange
dye wastewater
reagents
