硅酸盐通报2016，Vol.35Issue(9)：2772-2776,5.
高孔隙率 Ce-TiO2微粉的制备及其光催化性能研究
Preparation of High-Porosity Ce-TiO2 Micropowder and Its Photocatalytic Performance
摘要
Abstract
Modified Ce-TiO2 micropowder were synthesized by microwave-assisted hydrothermal method with homemade Ce-doped titania nanopowder and were characterized by X-ray diffraction ( XRD ) , scanning electron microscopy ( SEM ) , nitrogen adsorption ( BET ) , and UV-visible ( UV-Vis ) diffuse reflectance spectroscopy .The results show that modified Ce-TiO2 micropowder has high porosity , the average pore diameter is 153.4 nm and the specific surface area is 154.9 m2/g.Ce-doping has little effect on the structure of the micropowder , but it can enlarge the ability of TiO 2 for absorbing visible light , which shiftes absorption edge of TiO 2 reaching the visible region .At the same time Ce-doping effectively inhibits grain growth, hinders the crystal type transform of TiO 2 from anatase to rutile. High-Porosity Ce-TiO2 micropowder meets good visible light catalytic activity in low concentration formaldehyde solution .关键词
Ce-TiO2/光催化/高孔隙率/微波法/甲醛Key words
Ce-TiO2/photocatalysis/high porosity/microwave method/formaldehyde分类
化学化工引用本文复制引用
伍勇华,兰子君,杜伟良,马平..高孔隙率 Ce-TiO2微粉的制备及其光催化性能研究[J].硅酸盐通报,2016,35(9):2772-2776,5.基金项目
陕西省社会发展科技攻关项目 （）
