碘氧化铋纳米微球的室温合成与光催化降解苯酚综合实验设计

文章将光催化领域的热点材料碘氧化铋材料的制备与研究转化为实验教学项目。实验采用简单的室温沉淀法制备了两种具有不同化学组成的碘氧化铋纳米微球,以苯酚为目标污染物,研究了碘氧化铋在可见光下对苯酚的降解性能,通过对催化剂结构的表征和构效关系的分析,探讨了影响催化剂光催化活性的主要因素。实验涉及纳米材料制备、结构表征、光催化原理以及污染物浓度分析等多个知识点。该实验有利于培养学生综合分析问题和解决问题的能力,以及科学思维与创新能力的提升。

Synthesis of bismuth iodide oxide nanospheres at room temperature and comprehensive experimental design of photocatalytic degradation of phenol

The preparation and research of the bismuth iodide oxide material,a hot material in the field of photocatalysis,are transformed into the experimental teaching project.Two kinds of bismuth iodide nanoparticles with different chemical composition are prepared by simple precipitation method at room temperature.The degradation of phenol by bismuth iodide in visible light is studied.Based on the analysis of the structure and structure-activity relationship of the catalyst,the main factors influencing the photocatalytic activity of the catalyst are explored.This experiment involves many knowledge points,such as the preparation of nano materials,characterization of structure,principle of photocatalysis and analysis of pollutant concentration.This experiment is helpful to cultivate students’ability of comprehensive analysis and problem solving,as well as the promotion of scientific thinking and innovation ability.