University Chemistry ›› 2021, Vol. 36 ›› Issue (8): 2010012.doi: 10.3866/PKU.DXHX202010012

• Chemistry Laboratory • Previous Articles     Next Articles

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

Shilong Guo, Min Hu(), Shuai You, Haoyu Wen, Yaru Yang, Wenbin Liu, Peihong Gao, Dan Xiang, Wen Zhang   

  • Received:2020-10-12 Accepted:2021-01-18 Published:2021-02-02
  • Contact: Min Hu E-mail:humin1971@mail.xjtu.edu.cn
  • Supported by:
    西安交通大学本科教学改革重点项目

Abstract:

Based on the adsorption characteristics of activated carbon and the magnetic properties of nano-Fe3O4, a recyclable and low-cost nano-Fe3O4 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 Fe3O4@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.

Key words: Wastewater treatment, Magnetic nanocomposites, Recycling, Blended teaching

MSC2000: 

  • G64