NiO/TiO2纳米纤维的制备、表征及光催化性能  

Synthesis, characterization and photocatalysis of the NiO/TiO_2 nanofibers

作　　者：桑蓉栎[1] 崔志敏[1] 王琳[2] 邵长路[2] 

机构地区：[1]河北理工大学分析测试中心,唐山063009 [2]东北师范大学物理学院,长春130024

出　　处：《科学通报》2009年第10期1424-1428,共5页Chinese Science Bulletin

基　　金：国家自然科学基金资助项目(批准号:20020613)

摘　　要：采用静电纺丝和程序升温焙烧的方法制备了NiO/TiO2纳米复合光催化剂.利用X射线衍射(XRD)、扫描电子显微镜(SEM)、拉曼光谱(Raman)、紫外可见漫反射光谱(UV-visDRS)等测试技术对样品的结构与性能进行了表征,并研究了该催化剂在可见光下对有机染料罗丹明B催化降解反应的活性.结果表明,合成的NiO/TiO2复合纳米材料尺寸均匀,该催化剂相对于纯的TiO2具有更强的紫外光吸收性能,煅烧温度为600℃时,NiO/TiO2的光催化活性最高.而且,该催化剂也可被循环使用,这使得该复合光催化剂具有广阔的应用前景.NiO/TiO2 nanofibers composite photocatalyst were synthesized by electro-spinning and calcinations methods. The fibers were detected by XRD, SEM, Raman and UV-vis DRS, respectively. Photocatalytic properties of NiO/TiO2 were studied by method of degradation of Rhodamine B, an organic dye, in visible light. The results showed that the as-synthesized NiO/TiO2 nanofibers have uniform-sized diameter, and the UV absorbing properties of NiO/TiO2 were enhanced compared with those of pure TiO2. The photocatalytic activity of NiO/TiO2 is the greatest when the calcining temperature is 600℃. The NiO/TiO2 photocatalyst could be reused, which is essential to the potentially practical application.

关 键 词：静电纺丝 NiO/TiO2纳米纤维 光催化降解 罗丹明B 

分 类 号：O472.3[理学—半导体物理]