基于设计型实验方法探索材料化学教学模式  

Exploring A Teaching Model for Materials Chemistry Based on A Design-based Experimental Approach

作　　者：曹振兴 袁凤 秦余杨 梁凤芝 CAO Zhen-xing;YUAN Feng;QIN Yu-yang;LIANG Feng-zhi(School of Materials Engineering,Changshu Institute of Technology,Jiangsu Changshu 215500,China)

机构地区：[1]常熟理工学院材料工程学院,江苏常熟215500

出　　处：《广州化工》2023年第19期99-101,共3页GuangZhou Chemical Industry

基　　金：江苏省基础研究计划(自然科学基金)青年基金项目(BK20210937)。

摘　　要：基于设计型实验方法,以《二硫化钼纳米片对汞污染水的稳定化研究》为例,探索了材料化学教学模式。研究过程中,学生通过问题分析、解决方案设计和项目研究三个阶段,深入探究了二硫化钼纳米片在汞污染水处理中的应用。实验结果表明,二硫化钼纳米片对汞具有优异的吸附性能,其最大吸附容量达到641 mg/mL。同时,通过SEM-EDS和XPS分析,证实了二硫化钼纳米片有效吸附了重金属汞,并形成了稳定的HgS化合物。本研究不仅提高了学生的实践能力和创新能力,也为材料化学教学提供了新的思路和方法。Based on the design experiment method,the teaching model of Materials Chemistry with the example of“Stabilization of mercury-contaminated water by Molybdenum disulfide nanosheets”was explored.During the research process,students explored the application of molybdenum disulfide nanosheets in the treatment of mercury-contaminated water through three stages:problem analysis,solution design and project research.The experimental results showed that molybdenum disulfide nanosheets had excellent adsorption properties for mercury,and the maximum adsorption capacity reached 641 mg/mL.At the same time,by SEM-EDS and XPS analysis,it was confirmed that molybdenum disulfide nanosheets effectively adsorbed heavy metal mercury and formed stable HgS compounds.This study not only improved students practical ability and innovative ability,but also provided new ideas and methods for the teaching of Materials Chemistry.

关 键 词：材料化学 二硫化钼纳米片 汞污染水 设计型实验 

分 类 号：O6-339[理学—化学]