氮掺杂二氧化钛纳米粉体的制备及光催化性能的研究  

Synthesis and Photocatalytic Properties Under Light of N-doped TiO_2 Nanopowder

作　　者：冯光建[1] 刘素文[1] 修志亮[1] 俞娇仙[1] 

机构地区：[1]山东轻工业学院材料科学与工程学院,山东济南250353

出　　处：《中国粉体技术》2008年第3期39-42,共4页China Powder Science and Technology

基　　金：山东省科技攻关项目;编号:2005GG4203007

摘　　要：以钛酸正四丁酯为钛源、盐酸胍为氮源,用溶胶-凝胶法制备出了氮掺杂的TiO2纳米粉体,采用XRD、TEM、BET和UV-Vis对所制备的粉体进行了物相、形貌和结构表征,并分别在紫外光和可见光下进行了样品对甲基橙的光催化降解实验。结果表明,用该方法制备的N掺杂二氧化钛纳米粉体具有较单一的晶粒尺寸分布,分散性好,团聚少;掺杂样品在紫外光下对甲基橙的降解率比不掺杂样品有大幅度提高,并且在可见光下也具有较高的活性。The N-doped titania nanopowder was prepared by sol-gel method and characterized by X-ray diffraction （XRD）, transmission electron microscopy （TEM） and UV-Vis spectroscopy in phase,morphology and structure. The photocatalytic activities of the N-doped titania nanopowder were examined by photo-decolorization of methyl orange. The results showed that the N-doped titania nanopowder prepared by the method had a single distribution of crystal particle size, a good dispersion and less aggregation. The photocatalytic activities of the N-doped titania nanopowder enhanced greatly under UV irradiation, and it also had a good photocatalytic activity under visible light.

关 键 词：溶胶-凝胶法 纳米二氧化钛粉体 光催化 

分 类 号：TQ426.94[化学工程]