摘要
采用溶胶 -凝胶法制得 Si O2 胶体 ,并将其与锐钛型 Ti O2 微粒复合制得 Ti O2 / Si O2 催化剂 .用透射电镜 (TEM)观察表面形貌 ,用红外光谱 (IR)和 X-射线衍射 (XRD)表征其结构 .以敌敌畏溶液等为体系 ,考察了 Ti O2 / Si O2 的催化性能 ,同时与单一的锐钛型 Ti O2 作对比 .结果表明 ,Ti O2 / Si O2 具有比 Ti O2
TiO 2/SiO 2 as a catalyst is prepared by adopting sol gel process to prepare SiO 2 colloid which is then recombinated with anatase type TiO 2 fine grains. Its outside appearance is observed by transmission electron microscope and its structure is characterized by infrared spectrum and X ray diffraction. Taking dichlorvos solution as the system, the catalytic performance is investigated and compared with that of the single anatase type TiO 2. As shown by the results, TiO 2/SiO 2 has a higher photocatalytic performance than that of TiO 2.
出处
《华侨大学学报（自然科学版）》
CAS
2002年第2期129-132,共4页
Journal of Huaqiao University(Natural Science)
