摘要
以钛酸丁酯、无水异丙醇、钒酸铵和氯铂酸为原料,采用so l-gel法合成了复合催化剂V-T iO2、P t-T iO2和V-P t-T iO2.XRD、SEM和UV-V is研究结果表明:V、P t对T iO2的晶型影响不大,但对其形貌和紫外可见吸收有影响.考察了复合催化剂对三氯乙酸的光催化降解活性,结果表明:V、P t均能提高其催化活性,而且V和P t之间能协同大幅度提高其催化活性,并对产生该结果的原因进行了探讨.
Using Ti（OBu）4, H2PtCl6 and （NH4）3VO4 as raw materials, V-TiO2, Pt-TiO2 and V- Pt-TiO2 were prepared via Sol-gel method. The catalysts were characterized by XRD, SEM and UV-Vis spectra. Activities of the photocatalysts were evaluated by photodegradation of Cl3CCOOH. The result shows that the V and Pt do not change the morphology of the titanium. But they can effect the visage and the UV-Vis spectra of the titanium. Activities of the photocatalysts are obviously enhanced when titanium were codoped with V and Pt. The reasons are discussed simply.
出处
《北京工商大学学报（自然科学版）》
CAS
2006年第4期5-8,共4页
Journal of Beijing Technology and Business University:Natural Science Edition
关键词
TIO2
复合催化剂
光催化
三氯乙酸
titanium dioxide
compound catalysts
photocatalyze
trichloroacetic acid
