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掺铁TiO2纳米微粒的制备及光催化活性
Preparation and photocatalytic reactivity of iron-doped TiO2 nanoparticles
【摘要】 采用溶胶 凝胶法制备了不同掺铁量及不同 pH值下的一系列TiO2 光催化剂 ,并以高压汞灯为光源 ,罗丹明B为目标降解物 ,对其光催化活性进行了研究 .实验表明 ,Fe3+ TiO2 比纯TiO2 具有更好的催化活性 ,且Fe3+的最佳掺入量为 0 .0 5 % ,最佳制备的pH值为 5 .
【Abstract】 Nanosize Fe3+-doped TiO2 particles were prepared by (sol-gel) method. The influences of various (sol-gel) conditions including Fe3+ % and pH were investigated. The photocatalytic activity of the catalysts was tested with Rhodamine B as the objective decomposition substance. The results show that the Fe3+-doped TiO2 has a higher photocatalytic activity than TiO2. The best catalytic activity was observed in TiO2 with (0.05%) doped Fe3+ when pH is 5.0.
【关键词】 溶胶-凝胶法;
二氧化钛;
掺杂;
光催化;
罗丹明B;
【Key words】 Sol-gel method; Titanium dioxide; Dope; Photocatalysis; Rhodamin B;
【Key words】 Sol-gel method; Titanium dioxide; Dope; Photocatalysis; Rhodamin B;
- 【文献出处】 延边大学学报(自然科学版) ,Journal of Yanbian University (Natural Science Edition) , 编辑部邮箱 ,2004年03期
- 【分类号】O643
- 【被引频次】11
- 【下载频次】218