A comprehensive review on biochar-based materials for the safe utilization and remediation of heavy metal-contaminated agricultural soil and associated mechanisms

文献类型： 外文期刊

第一作者： Ye, Limiao

作者： Ye, Limiao;Gao, Guangkuo;Li, Fayun;Xue, Yong;Ye, Limiao;Gao, Guangkuo;Sun, Yafei;Yang, Shiyan;Qin, Qin;Wang, Jun;Bai, Naling;Xue, Yong;Sun, Lijuan;Ye, Limiao;Gao, Guangkuo;Sun, Yafei;Yang, Shiyan;Qin, Qin;Wang, Jun;Bai, Naling;Xue, Yong;Sun, Lijuan

作者机构：

关键词： Biochar adsorption mechanism; Modification methods; Heavy metals passivation; Agricultural soil remediation; Long-term aging

期刊名称：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING （ 影响因子：7.2； 五年影响因子：7.6 ）

ISSN： 2213-2929

年卷期： 2025 年 13 卷 3 期

页码：

收录情况： SCI

摘要： Heavy metal pollution of soil poses a serious threat to the agricultural industry. As a carbon-rich material with high adsorption sites, biochar has received much in the safety use or remediation of heavy metal contaminated agricultural soil. This paper provided a comprehensive overview on the application of biochar in agricultural soil remediation and its related mechanisms. Firstly, the production and modification methods of biochar were introduced. Secondly, the physical and chemical mechanism of heavy metal adsorption by biochar was comprehensively discussed. Thirdly, the heavy metal passivation principles by biochar and factors influencing the passivation efficiency were summarized, including soil pH, environmental temperature, humidity, soil redox potential. Finally, the potential risk of contaminates leaching during the long term application of biochar and future challenges for the wide use of biochar was proposed. This review offers comprehensive and valuable insights for the green and economy agricultural soil remediation technology based on biochar materials and promotes its widely application.

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