Abstract
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.
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
About the authors
Zheng Ji was born in 1998. He is a postgraduate student in Anhui University of Chinese Medicine. His main field of research is mass transfer and separation in pharmaceutical processes.
Yansong Zhang was born in 1997. He is a postgraduate student in Anhui University of Chinese Medicine. His main field of research is mass transfer and separation in pharmaceutical processes.
Huchuan Wang PhD. was born in 1986. He is a teacher at Anhui University of Chinese Medicine. His main field of research is applications of water soluble polymers in industrial water systems and green chemical.
Chuanrun Li, PhD. was born in 1977. He is a teacher at Anhui University of Chinese Medicine. His research interests lie in organic material, fine chemicals and environmental protection.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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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.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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