Issue 6, 2023

A review on adsorption characteristics and influencing mechanism of heavy metals in farmland soil

Abstract

The accumulation of heavy metals in soil and crops is considered to be a severe environmental problem due to its various harmful effects on animals and plants. Soil adsorption is an essential characteristic of mud, which is the fundamental reason for soil to have a specific self-purification capacity and environmental capacity for heavy metals. The adsorption of heavy metals by soil reduces the uptake of these pollutants by crops, thereby limiting food contamination. Therefore, the adsorption of heavy metals in crop soils was taken as the primary research object. Based on the entire reading of the literature, the previous research results were compared and discussed from the four aspects of heterogeneity, physical and chemical properties, competitive adsorption, and external factors. The influencing mechanism of heavy metal adsorption characteristics in soil was reviewed. Finally, suggestions and prospects for future research on heavy metal adsorption were put forward.

Graphical abstract: A review on adsorption characteristics and influencing mechanism of heavy metals in farmland soil

Article information

Article type
Review Article
Submitted
08 Nov 2022
Accepted
31 Dec 2022
First published
25 Jan 2023
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2023,13, 3505-3519

A review on adsorption characteristics and influencing mechanism of heavy metals in farmland soil

H. Yu, C. Li, J. Yan, Y. Ma, X. Zhou, W. Yu, H. Kan, Q. Meng, R. Xie and P. Dong, RSC Adv., 2023, 13, 3505 DOI: 10.1039/D2RA07095B

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