磁性材料的制备及其污水处理性能测试——基于混合式教学的综合实验

Preparation of Magnetic Material and Its Application in Wastewater Treatment:A Comprehensive Experiment Based on Blended Teaching

利用活性炭吸附特性和纳米四氧化铁的磁性,设计并制备一种低成本、可回收的Fe_(3)O_(4)@C复合材料,对其磁性及水处理性能进行研究,以解决传统水处理材料不能重复利用且易残留于水体中问题的综合实验。本实验以问题为导向,Fe_(3)O_(4)@C复合材料为载体,帮助学生掌握无机纳米材料的基本制备、性能表征方法,提高学生数据处理及解读能力,同时提供一种新的综合实验教学新模式——混合式教学,即通过大型仪器介绍、使用和数据软件学习采用线上教学,而材料制备及污水处理性能评价采用线下实践相结合的模式,解决传统无机化学实验材料前沿表征手段与数据处理训练较为薄弱的问题。本实验可作为无机化学、现代仪器分析等理论课程的配套综合实验。

Based on the adsorption characteristics of activated carbon and the magnetic properties of nano-Fe_(3)O_(4),a recyclable and low-cost nano-Fe_(3)O_(4)was designed to circumvent the problem that traditional water treatment materials cannot be reused and easily remained in water.This experiment is problem-based using Fe_(3)O_(4)@C composite materials as the carrier,to help students master the basic preparation of inorganic nano materials,performance characterization methods,improve students’ability of data processing and interpretation.This experiment provides a new comprehensive laboratory teaching mode,and the online teaching is adopted through the introduction,use and data software in learning of large instruments,while the offline practice is adopted for material preparation and wastewater treatment performance evaluation.This experiment overcame the weakness in traditional inorganic chemistry laboratory teaching,such as weak characterization methods and data processing training.This experiment can be used as a comprehensive experiment for inorganic chemistry,modern instrumental analysis and other theoretical courses.