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Licensed Unlicensed Requires Authentication Published by De Gruyter May 17, 2022

Research progress in the removal of heavy metals by modified chitosan

Zheng Ji, Yansong Zhang, Huchuan Wang and Chuanrun Li


Chitosan and its modifiers have been widely studied for their good biocompatibility and excellent adsorption properties for heavy metal ions. The synthesis and application of modified chitosan, the effects of process variables (such as pH, amount of adsorbent, temperature, contact time, etc.), adsorption kinetics, thermodynamics and the adsorption mechanism on the removal of heavy metal ions are reviewed. The purpose is to provide the latest information about chitosan as adsorbent and to promote the synthesis of modified chitosan and its application in the removal of heavy metals.

Corresponding authors: Huchuan Wang and Chuanrun Li, Department of Medicinal Chemistry, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China, E-mail: (Huchuan Wang), (Chuanrun Li)

Funding source: National Key Research and Development Program

Award Identifier / Grant number: 2019YFC1711300

Funding source: Natural Science Foundation of Anhui Province

Award Identifier / Grant number: 1808085QH289

Funding source: Natural Science Research of Anhui Universities

Award Identifier / Grant number: KJ2020A0432

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This work is supported by the National Key Research and Development Program of China, No. 2019YFC1711300; Natural Science Foundation of Anhui Province, No. 1808085QH289; Key Project of Natural Science Research of Anhui Universities, No. KJ2020A0432; Quality Project of Higher Education in Anhui Province, No. 2020xfxm35.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.


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Received: 2021-12-08
Accepted: 2021-12-29
Published Online: 2022-05-17
Published in Print: 2022-07-26

© 2022 Walter de Gruyter GmbH, Berlin/Boston

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