A comprehensive review of modified biochar-based advanced oxidation processes for environmental pollution remediation: efficiency, mechanism, toxicity assessment

doi:10.1016/j.jenvman.2025.125872

科研成果详情

题名	A comprehensive review of modified biochar-based advanced oxidation processes for environmental pollution remediation: efficiency, mechanism, toxicity assessment
作者	Fu，Yue 1; Yi，Yunqiang 1; Wang，Yu 1; Diao，Yi 4; Diao，Zenghui 1; Chen，Zhenguo 2,3
发表日期	2025-07-01
发表期刊	Journal of Environmental Management
ISSN	0301-4797
卷号	387
摘要	Biochar (BC) has been demonstrated efficacy in activating oxidants to enhance environmental contaminant degradation. However, performance limitations of pristine biochar, including insufficient active sites and low electron transfer efficiency, primarily stemming from feedstock heterogeneity and pyrolytic parameter variations, resulting in suboptimal activation efficiency in practical applications. Recent studies demonstrated that targeted functionalization strategies, such as heteroatom doping, metal loading, and acid/alkali modification, could significantly improving activation performance of biochar, which was critical for advancing biochar-based advanced oxidation processes. In this review, the modification methods of biochar and their applications in activating diverse oxidants for water purification, soil remediation, air pollutant mitigation, and antimicrobial disinfection were summarized. Additionally, the differences in mechanisms among modified biochars for activating different oxidants in pollutant degradation were systematically illustrated. This review indicated that both free radicals and non-free radicals pathway played key roles in pollutant removal, either individually or through synergistic effects. Furthermore, potential challenges in applying modified biochar-based AOPs at a practical scale were also discussed. This review have shown that the presence of natural substances and impurities in these environments can deplete active components, resulting in reduced pollutant degradation efficiencies compared to controlled laboratory conditions. The current review illustrated that the toxicity of modified biochar was related to feedstocks and pyrolysis processes. Meanwhile, the toxicity of degradation intermediates could significantly reduce using modified biochar-based AOPs. Overall, this review provide insights for future research in this field.
关键词	Advanced oxidation processes Biochar Environmental remediation Modification
DOI	10.1016/j.jenvman.2025.125872
相关网址	查看来源
语种	英语English
Scopus入藏号	2-s2.0-105005763003
引用统计
文献类型	评论文章
条目标识符	https://repository.uic.edu.cn/handle/39GCC9TT/13249
专题	北师香港浸会大学
通讯作者	Yi，Yunqiang
作者单位	1.Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food,Ministry of Agriculture,College of Resources and Environment,Zhongkai University of Agriculture and Engineering,Guangzhou,510006,China 2.Guangdong Provincial Engineering Research Center of Intelligent Low-carbon Pollution Prevention and Digital Technology,South China Normal University,Guangzhou,510006,China 3.SCNU (NAN'AN) Green and Low-carbon Innovation Center,Nan'an SCNU Institute of Green and Low-carbon Research,Quanzhou,362300,China 4.Beijing Normal University-Hong Kong Baptist University United International College,Zhuhai,519087,China
推荐引用方式 GB/T 7714	Fu，Yue,Yi，Yunqiang,Wang，Yuet al. A comprehensive review of modified biochar-based advanced oxidation processes for environmental pollution remediation: efficiency, mechanism, toxicity assessment. 2025.