紫外光和可见光对Fe_3O_4掺杂的TiO_2催化降解有机物的影响  

Effect of visible-or UV-light on the catalytic activity of Fe_3O_4-doping titanium dioxide for organic compounds degradation

作　　者：廖承莉 何璐燕 吴娇 党曼 张耀辉 李星[1] 胡芳 LIAO Cheng-li;HE Lu-yan;WU Jiao;DANG Man;ZHANG Yao-hui;LI Xing;HU Fang(Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China)

机构地区：[1]宁波大学材料科学与化学工程学院,浙江宁波315211

出　　处：《宁波大学学报（理工版）》2017年第6期104-108,共5页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：国家自然科学基金(21602122);宁波市自然科学基金(2016A610051);宁波大学学科基金(ZX2015000586);宁波大学王宽诚幸福基金

摘　　要：基于TiO_2光催化剂的催化机理尚不明确,因此发展一种具有不同波段的光催化材料对光催化机理的研究至关重要.本文采用溶胶-凝胶方法合成了一个Fe_3O_4掺杂的金红石型TiO_2复合物,通过红外、粉末衍射以及扫描电镜对其结构进行了表征.紫外-可见吸收光谱表明,无论在可见光或者是紫外光的照射下,它都表现出良好的光催化性能,说明Fe_3O_4掺杂对改善TiO_2的催化性能有一定影响.TiO2-based photocatalyst has been widely reported,but the catalysis mechanism is not clear,so it is significant to develop photocatalytic materials upon irradiation with different light.In this paper,the Fe3O4-doped TiO2complex was synthesized and its structure was characterized by infrared spectra,X-ray diffraction and scanning electron microscope.The UV-Vis absorption spectra showed that the complex had excellent photocatalytic performance upon irradiation with visible light or ultraviolet light.It suggests that the doping of Fe3O4has a certain effect on improving the catalytic performance of TiO2.

关 键 词：可见光 紫外光 催化活性 二氧化钛 降解 

分 类 号：O646[理学—物理化学]