稀土杂多酸盐光催化降解活性染料废水的研究  

Study on photocatalytic degradation of activated dye wastewater by rare-earth heteropoly salt

作　　者：罗宿星[1] 伍远辉[1,2] 勾华[1] 

机构地区：[1]遵义师范学院化学系,贵州遵义563002 [2]重庆大学材料科学与工程学院

出　　处：《无机盐工业》2008年第12期47-49,共3页Inorganic Chemicals Industry

基　　金：贵州省科学技术基金资助项目(黔科合J字[2007]2030号)

摘　　要：制备了稀土杂多酸盐Na13[Yb(TiW11O39)2].xH2O。采用稀土杂多酸盐作为光催化剂,研究了其对模拟染料废水甲基橙溶液的光催化脱色降解的影响。实验结果表明,稀土杂多酸盐对染料废水有较好的光催化降解效果。讨论了影响光催化降解效果的几个重要因素:溶液初始酸度、催化剂投加量、溶液初始质量浓度等。最后,在300 W紫外灯光照下,研究了该稀土杂多酸盐降解10 mg/L甲基橙溶液的动力学。Rare - earth heteropoly salt, Na13[Yb（TiW11O39）2]·xH2O, was prepared. The influence of rare - earth heteropoly salt as photocatalyst on photocatalytic degradation of dye wastewater simulated by methyl orange solution was studied. Results showed that the efficiency of degradation was evident. Several important influencing factors of photocatalytie degradation,which included initial pH of solution, catalyst dosage, and initial mass concentration of solution etc. ,were diseussed. Finally,the kinetics of rare -earth heteropoly salt degrading 10 mg/L methyl orange by using 300 W ultraviolet lamp as photo source was investigated.

关 键 词：染料废水 光催化 稀土杂多酸盐 降解 

分 类 号：TQ133.3[化学工程—无机化工]