Fe、Cr掺杂TiO2光催化分解水制氢综合性实验设计

Design of comprehensive experiment for photocatalytic decomposition of water for hydrogen production with Fe and Cr doped TiO2

设计了TiO2光催化分解水制氢的综合性实验,分别合成了无掺杂、Fe掺杂和Cr掺杂的3种锐钛矿型TiO2,通过X-射线衍射仪和紫外-可见漫反射光谱对材料的晶型结构和光响应性质进行了表征,同时测试了3种材料的光催化分解水产氢活性,通过气相色谱法对产氢量进行定性和定量分析。结果显示,该综合性实验有助于学生了解光催化学术研究前沿,激发学生的科研热情,又可以提升学生的综合实践能力和创新思维能力。

A comprehensive experiment of photocatalytic decomposition of water for hydrogen production with Fe and Cr doped TiO2A is designed. Three kinds of rutile TiO2 without doping, with Fe doping or Cr doping are synthesized. The crystal structure and photoresponse properties of the samples are characterized by X-ray diffraction and UV-visible diffuse reflection. The photocatalytic hydrogen production activity of the three materials is tested, and the amount of produced hydrogen is quantitatively analyzed by gas chromatography. The results show that this comprehensive experiment can extend students’ understanding of the frontiers of academic research, stimulate their research enthusiasm, and enhance their comprehensive practical ability and innovative thinking ability.