Sol-Gel法制备纳米Fe-TiO_2光催化剂及其光催化性能  

Preparation of Nanometer TiO_2-Fe Catalyst by Sol-Gel Method and Its Photocatalytic Performance

作　　者：曾翎[1] 尹炳龙[1] 干均江[1] 姜华昌[1] 杨瑞芹[1] 

机构地区：[1]浙江科技学院,浙江杭州310023

出　　处：《稀有金属材料与工程》2010年第S2期350-352,共3页Rare Metal Materials and Engineering

基　　金：浙江省自然科学基金项目(Y405139)资助

摘　　要：以钛酸四正丁酯和无水乙醇为主要原料,掺杂一定比例的Fe3+,采用溶胶-凝胶法(Sol-Gel)制备TiO2-Fe2O3复合催化剂,并用XRD和SEM等手段进行表征。以4-(2-吡啶偶氮)间苯二酚(PAR)光催化降解为模型反应,在可见光条件下对所制备的催化剂催化性能进行表征和评价。结果表明:掺铁TiO2比不掺杂TiO2有更高的催化活性,同时也验证掺铁量在0.5%时,光催化活性最高。焙烧温度在400℃时,催化活性大。Nanometer TiO2-Fe photo catalyst was prepared from Ti (Obu)4, C2H5OH with certain proportion of Fe3+ by sol-gel. The structure of the catalyst were characterized by means of XRD and TEM techniques. The catalytic activity was evaluated by photocatalytic degradation of PAR as a model reaction. The results indicate that the photocatalytic activity of the TiO2-Fe2O3 composite catalyst is improved greatly compared with TiO2, and 0.5%Fe3+ addition leads to the highest photo catalytic activity. It is also high when the calcinations temperature is 400 oC.

关 键 词：溶胶-凝胶 二氧化钛 氧化铁 锐钛矿 降解 

分 类 号：O643.36[理学—物理化学]