- Synthesis of CdSe Quantum-Dots-Sensitized TiO2 nanocomposites with Visible-Light Photocatalytic Activity
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- 论文类型： 会议论文
- 发表时间： 2013-10-27
- 收录刊物： EI、CPCI-S、SCIE、Scopus
- 卷号： 924
- 页面范围： 3-+
- 关键字： CdSe Quantum Dots; TiO2 modification; photocatalysis
- 摘要： CdSe Quantum Dots (QDs) sensitized TiO2 photocatylysts were synthesized by a facile sol-gel method at room temperature. The effects of CdSe QDs concentration on the properties of the photocatalysts were studied by XRD, BET, SEM, UV/vis. The photocatalytic performance was investigated by degrading methylene blue (MB) under halogen-tungsten lamp irradiation. The results revealed that the catalysts doped with CdSe QDs show large surface area, small crystal size and narrow band gap. The catalysts doped with 0.05% CdSe QDs possessed the best activity, and the degradation efficiency of methylene blue (MB) is up to 99.2% within 180 min.
