Waste derived biochar for water purification:the roles of redox properties  

作　　者：Hanyang Sun Tong Chen Longjie Ji Dejin Tian Xiaodong Li Chen Sun 

机构地区：[1]State Key Laboratory of Clean Energy Utilization,Institute for Thermal Power Engineering,Zhejiang University,Hangzhou,310058,China [2]Institute of Zhejiang University-Quzhou,Quzhou,32400,China [3]Beijing Construction Engineering Group Green Energy Environmental Technology Co.,Ltd.,Beijing,100015,China [4]Beijing Construction Engineering Group Environmental Remediation Co.Ltd,Beijing,100015,China

出　　处：《Waste Disposal and Sustainable Energy》2024年第4期565-587,共23页废弃物处置与可持续能源(英文)

基　　金：supported by the Natural Science Foundation of China(No.52306280);the Research Funds of the Institute of Zhejiang University-Quzhou(Nos.IZQRCZX023 and IZQ2023KJ1001);the Zhejiang Province“Pioneer”and“Lingyan”Research and Development Project(No.2024C03232).

摘　　要：Biochar,derived from the waste pyrolysis process,is a promising class of functional materials for environmental remediation owing to its large surface area,abundant surface functionalities and redox properties.This review focuses on the compositions,structures and electron transfer abilities of biochar and their roles in pollutant transformation in environmental remediation.First,the redox properties of biochar are systemically introduced,and the influencing factors are thoroughly discussed.Furthermore,biochar-involved redox reactions for pollutant reduction are distinctly classified on the basis of the different oxidants and reaction conditions.The reactive species in each system are comprehensively introduced,while the roles of biochar are adequately analyzed.This review aims to address the growing need for a comprehensive understanding of the role of biochar in pollutant transformation.Moreover,it also seeks to guide future research and the design of biochar materials for advanced water purification,highlighting the need for precise control of redox properties to achieve improved environmental outcomes.

关 键 词：BIOCHAR Persistent free radicals Electron transfer Redox properties Pollutant transformation 

分 类 号：X703[环境科学与工程—环境工程]