大学化学 >> 2020, Vol. 35 >> Issue (2): 50-57.doi: 10.3866/PKU.DXHX201905084

化学实验 上一篇    下一篇

TiO2纳米粉体的掺杂改性及光催化性能研究——伯苓班无机综合实验

朱宝林1,2,张沙沙1,霍国钠1,马露露1,李振宁1,赵臻翔1,申启捷1,邱晓航1,2,*()   

  1. 1 南开大学化学学院, 天津 300071
    2 化学国家级实验教学示范中心(南开大学), 天津 300071
  • 收稿日期:2019-05-31 录用日期:2019-07-15 发布日期:2019-08-01
  • 通讯作者: 邱晓航 E-mail:qiuxh@nankai.edu.cn
  • 基金资助:
    基础学科拔尖学生培养计划(20180206)

Doping and Photocatalytic Performance of TiO2 Nanopowder: An Inorganic Comprehensive Experiment for Boling Class

Baolin Zhu1,2,Shasha Zhang1,Guona Huo1,Lulu Ma1,Zhenning Li1,Zhenxiang Zhao1,Qijie Shen1,Xiaohang Qiu1,2,*()   

  1. 1 College of Chemistry, Nankai University, Tianjin 300071, P. R. China
    2 National Demonstration Center for Experimental Chemistry Education(Nankai University), Tianjin 300071, P. R. China
  • Received:2019-05-31 Accepted:2019-07-15 Published:2019-08-01
  • Contact: Xiaohang Qiu E-mail:qiuxh@nankai.edu.cn
  • Supported by:
    基础学科拔尖学生培养计划(20180206)

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摘要：

南开大学化学学院伯苓班本科生的无机综合实验课程中，开展"TiO2纳米粉体的掺杂改性及光催化性能研究"实验，学生自主选择掺杂元素及含量，以溶胶-凝胶方法制备不同金属及非金属掺杂的TiO2纳米粉体，采用扫描电镜、透射电镜、X射线衍射、紫外漫反射等手段表征所得材料，以甲基橙溶液模拟有机废水，研究催化剂在紫外光下的催化降解活性，选取性能最佳催化剂，测试其在模拟日光下的光解水性能。通过开展贴近科研前沿的实验内容，对伯苓班学生进行系统的科研训练，培养他们的综合科研能力。

关键词: TiO2纳米粉体, 掺杂改性, 光催化, 伯苓班, 无机综合实验

Abstract:

An experiment "Doping and Photocatalytic Performance of TiO2 Nanopowder" was performed in inorganic comprehensive laboratory for Boling Class of Nankai University. After the dopant precursors and corresponding contents were determined by the students, different elements doped TiO2 powders were prepared by sol-gel method, and characterized by scanning electronic microscopy, transmittance electronic microscopy, powder X-ray diffraction and UV-Vis diffuse reflectance spectroscopy. The photocatalytic performances of the prepared catalysts were monitored by the degradation of methyl orange as the simulated wastewater to select the superior ones for photocatalytic water splitting test. Through this comprehensive experiment related to research frontier, the students in Boling Class can obtain basic research training and their scientific literacy can be improved.

Key words: TiO2 nanopowder, Doping modification, Photocatalyst, Boling Class, Inorganic comprehensive laboratory