摘要
以P25粉体为原料,采用水热法合成了TiO2纳米线,通过NaBH4还原CuCl2溶液,在TiO2纳米线的表面负载了Cu纳米颗粒。利用透射电镜(TEM)、X射线光电子能谱(XPS)和紫外-可见光谱(UV-Vis)对产物进行了表征。结果表明,Cu纳米粒子均匀分散在纳米线表面,并且该Cu/TiO2纳米线在可见光区域表现出较强的吸收性能。光催化降解酸性红3R染料溶液测试表明,在TiO2纳米线表面负载Cu纳米颗粒对提高其催化性能具有积极作用。
Using P25 as raw materials, titania nanowires are fabricated by a facile hydrothermal route. The Cu loaded titania nanowires are obtained by the reduction of CuCl2 in the presence of NaBH4 solution. The characterizations of the as-synthesized Cu/TiO2 nanowires are performed using TEM, XPS and UV-Vis spectra. The results show that the Cu nanoparticles are well dispersed on the external surface of the titania wires. UV-visible absorption measurements show that the as-synthesized Cu/TiO2 nanowires present strong absorption in visible light. The photocatalytic activity of TiO2 and Cu/TiO2 nanowires are characterized by degradation of the Acid red 3R solution. The results indicate that the Cu loaded on the surface of Cu/TiO2 nanowire improve its photocatalytic activity.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2010年第14期92-94,共3页
Materials Reports
基金
河北省科学技术研究与发展计划项目(09215133)
关键词
纳米线TiO2
CU
水热法
光催化降解
nanowires, TiO2, Cu, hydrothermal route, photocatalytic degradation
