催化学报 ›› 2011, Vol. 32 ›› Issue (10): 1651-1655.DOI: 10.3724/SP.J.1088.2011.10605

• 研究论文 • 上一篇    下一篇

一维 CdS/TiO2 纳米材料的制备及其光催化性能

朱宝林, 赵伟玲, 曾晨婕, 陈洁, 韩骐伟, 黄唯平*   

  1. 南开大学先进能源材料化学教育部重点实验室, 天津 300071
  • 收稿日期:2011-06-01 修回日期:2011-08-05 出版日期:2011-09-30 发布日期:2015-02-12

Preparation and Photocatalytic Performance of One-Dimensional CdS/TiO2

ZHU Baolin, ZHAO Weiling, ZENG Chenjie, CHEN Jie, HAN Qiwei, HUANG Weiping*   

  1. Key Laboratory of Advanced Energy Materials Chemistry of Ministry of Education, Nankai University, Tianjin 300071, China
  • Received:2011-06-01 Revised:2011-08-05 Online:2011-09-30 Published:2015-02-12

摘要: 采用含有氯化镉和硫脲的钛溶胶对钛酸纳米管载体进行修饰, 再经焙烧制得不同 CdS 含量的一维 CdS/TiO2 纳米材料. 运用 X 射线衍射、透射电子显微镜、N2 吸附-脱附、紫外-可见光谱和 X 射线光电子能谱等手段表征了材料的结构和性质, 并考察了 CdS/TiO2 样品在紫外光及模拟日光条件下光催化降解甲基橙溶液的活性. 结果表明, 经高温焙烧后, 钛酸纳米管晶型发生变化, 生成一维 TiO2 晶片, 经 CdS 修饰后, 其光催化性能明显提高, 其中 400 ºC 焙烧所得的 3% CdS/TiO2 光催化性能最好.

关键词: 钛酸纳米管, 载体, 硫化镉, 二氧化钛, 光催化活性

Abstract: By using hydrogen titanate nanotubes as support and titanium sol composed of CdCl2 and thiourea as modifying precursor, one-dimensional CdS/TiO2 catalysts with different CdS contents were prepared after calcination. The prepared materials were characterized by X-ray diffraction, transmission electron microscopy, N2 adsorption, UV-Vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. Using methyl orange solution as wastewater, the photocatalytic activity of CdS/TiO2 was investigated under UV light and simulated sunlight irradiation. The results indicate that the tubular structure of titanate nanotubes is damaged and one-dimensional TiO2 crystals form after the calcination process at high temperature. After TiO2 is modified by CdS, improved photocatalytic performance is obtained, and 3% CdS/TiO2 calcined at 400 ºC exhibits the best catalytic performance.

Key words: hydrogen titanate nanotube, support, cadmium sulfide, titanium dioxide, photocatalytic activity