能带调控Bi_4O_5I_2材料的制备及其光催化降解污染物性能测定

Preparation of Bi4O5I2 Material for Energy Band Control and Performance Determination of Its Photocatalytic Degradation of Pollutants

本文设计了简易一步法可控制备能带调控的Bi4O5I2光催化材料,通过XRD、SEM、DRS等多种表征手段对材料的结构、形貌和性能等进行确定。选取抗生素环丙沙星为模型目标污染物、以氙灯为可见光光源,探究Bi4O5I2材料光催化降解有机污染物的活性。本综合实验可使学生初步了解光催化材料设计调控的相关知识、常用仪器分析方法以及材料活性考察的基本知识。实验内容涵盖仪器分析、环境化学、材料化学等多学科知识。探究性实验的设计有利于激发学生对科研性创新实验的兴趣。

In this paper, the controllable preparation of Bi4 O5 I2 photocatalytic material for energy band control is designed by a simple one-step method. The structure, morphology and properties of the material are determined by XRD, SEM, DRS and other characterization methods. The antibiotic ciprofloxacin was selected as the target pollutant and the xenon lamp was used as the visible light source to investigate the photocatalytic degradation of organic pollutants by Bi4 O5 I2. This comprehensive experiment allows students to initially understand the knowledge on the design and control of photocatalytic materials, commonly used instrumental analysis methods and the basic knowledge of material activity inspection. The experiment covers multi-disciplinary knowledge of instrumental analysis, environmental chemistry and material chemistry. The design of exploratory experiments is conducive to inspiring students＇ interest in scientific experiments.