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China Surfactant Detergent & Cosmetics ›› 2022, Vol. 52 ›› Issue (8): 882-891.doi: 10.3969/j.issn.1001-1803.2022.08.014

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Preparation of magnetic nano-Fe3O4 and its application in wastewater treatment

Zhao Fengtao,Li Xuanjing,Li Enze,Du Zhiping*(),Li Jianfeng,Shen Jing   

  1. Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan, Shanxi 030000, China
  • Received:2021-12-30 Revised:2022-05-18 Online:2022-08-22 Published:2022-08-24
  • Contact: Zhiping Du E-mail:duzhiping@sxu.edu.cn.

Abstract:

With the acceleration of industrialization, a large amount of wastewater containing emulsions, dyes, and refractory organics have been discharged, causing irreversible harm to both human beings and nature. Therefore, it is of great significance to develop an adsorbent with large adsorption capacity and good separation effect for wastewater treatment. Magnetic nano-Fe3O4, with the advantages of good selectivity, rapid separation and being recyclable, has been widely concerned by scientists and engineers for its promising application. Herein, the preparation methods of magnetic nano-Fe3O4 adsorbents and the modified nano-Fe3O4 containing specific functional groups are introduced. The adsorption mechanism of magnetic composite materials is concluded by tracing the research trends in actual wastewater application. It is suggested that the preparation of magnetic nanomaterials should be further optimized in order to meet the needs of different wastewater, and more efficient and more widely applicable compounds should be developed to reduce the impact on environment, and to increase their desorption regeneration performance and improve recycling efficiency.

Key words: magnetic, adsorption, wastewater treatment, adsorption mechanism

CLC Number: 

  • X789