活性TiO_2的制备、表征及其可见光催化降解性能  

Preparation,Characterization and Photocatalytic Degradation Performance of Active TiO_2

作　　者：张一兵[1] 

机构地区：[1]上饶师范学院化学化工学院,江西上饶334001

出　　处：《矿冶工程》2011年第1期81-83,87,共4页Mining and Metallurgical Engineering

基　　金：教育部第四批高等学校特色专业建设点资助项目(TS11524);"973"计划项目(2003CB716902);江西省教育厅科技资助项目(GJJ09373);江西省高校教学团队资助项目(赣教高字〔2008〕100号)

摘　　要：以Ti(SO4)2为主要原料,采用水热法制备了活性TiO2粉末,以SEM和XRD测定了样品的形貌和晶型,研究了自制的TiO2对孔雀石绿溶液的光催化降解作用。结果表明,所制备的TiO2为锐钛矿型TiO2即A-TiO2。在优化条件下,用自制的掺Fe3+量为8%的活性TiO2降解孔雀石绿溶液的降解率达到84.00%。同样条件下,以掺Fe3+量为0%、2%、5%和10%的A-TiO2为催化剂,孔雀石绿的降解率分别为15.30%、45.10%、63.30%和40.70%。Active TiO2 powder was prepared by hydrothermal method with Ti（SO4）2 as raw material.The morphology and crystal shape of the sample were analyzed by SEM and XRD.The photocatalytic degradation effect of as-prepared TiO2 on malachite green solution was studied.The results show that the as-prepared TiO2 is anatase TiO2,that is,A-TiO2.The degradation rate reached to 84.00% when the as-prepared TiO2 doped with 8% Fe3＋ was used to degrade malachite green solution under optimized conditions.Under the same conditions,the degradation rates of malachite green were 15.30%,45.10%,63.30% and 40.70% respectively,with A-TiO2 doped with 0%,2%,5% and 10% Fe3＋ as catalysts.

关 键 词：活性TiO2 水热法 光催化 孔雀石绿 

分 类 号：X131.2[环境科学与工程—环境科学]