逐层自组装法制备纳米二氧化钛空心微球  

Preparation of Layer-by-layer self-assembled nano-titania hollow microsphere

作　　者：郝晏[1] 李巧玲[1] 李建强[1] 白蕊[1] 

机构地区：[1]中北大学化学系,山西太原030051

出　　处：《天津化工》2011年第1期13-14,共2页Tianjin Chemical Industry

基　　金：山西省自然科学基金(209011009);山西省回国留学基金(2008064)

摘　　要：本文采用溶胶-凝胶法与自组装技术相结合的工艺,以聚乙二醇为模板制备了多层组装的TiO2空心微球。采用TEM对产物进行了表征。以甲基橙溶液的脱色降解率,考察了不同煅烧温度和组装层数对TiO2空心微球光催化性能的影响。结果表明:500℃煅烧下组装四层的TiO2空心微球光催化效果最佳,2h内对甲基橙的催化效果可达到97.25%。Combining the sol-gel method and self-assembly technique,the multi-layer assembly TiO2 hollow microsphere was synthesized using PEG template.The products were characterized using TEM.By the methylene orange degradation,the effect of temperature and the assembly layers on the photocatalysis property of the TiO2 hollow microsphere were investigated.The results indicated the hollow microspheres were synthesized.The catalysis efficiency of microsphere samples on the methylene orange degradation in 2 hour was up to 97.25%.

关 键 词：自组装技术 TiO2空心微球 光催化 

分 类 号：TQ134.11[化学工程—无机化工]