含Se纳米TiO2复合物的制备及其光催化性质  

Preparation and photocatalytic activity of Se-TiO_2 nanocomposite

作　　者：张承林[1,2] 张胜义[1] 郭小烛[1] 金葆康[1] 田玉鹏[1] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230039 [2]蚌埠医学院公共课程部,安徽蚌埠233000

出　　处：《安徽大学学报（自然科学版）》2009年第1期70-74,共5页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(20875001,20775001,50532030,20771001);安徽省自然科学基金资助项目(2006KJ007TD)

摘　　要：采用溶胶-凝胶-浸渍法制备了含Se纳米TiO2复合物.分别用TEM、XRD、XPS、UV-Vis、IR、PL等对所得产物进行了一系列表征,结果表明,该复合物具有锐钛矿相结构,其粒径约为20 nm.日光下降解亚甲基蓝(MB)的实验结果表明,Se的掺入大大提高了TiO2的光催化活性.The Se-TiO2 Nanocomposite was prepared by a sol-gel-dipping process. The products were characterized by TEM, XRD, XPS, UV-vis, FT-IR and PL. The results showed that the Se-TiO2 nanopartieles were composed of anatase with 20nm in diameter. The introduction of Se in nanocomposite increased the photocatalytic activity of TiO2, which was confirmed by photodegradating methylene blue on sun light.

关 键 词：溶胶-凝胶法 Se—TiO2纳米复合物 光催化性质 

分 类 号：O614.4[理学—无机化学]