文献类型：期刊文献

英文题名：Removal of heavy metals in water using nano zero-valent iron composites: A review

作者：Di, Lu[1];Chen, Xinyu[1];Lu, Jinjie[1];Zhou, Yi[1,3];Zhou, Yanbo[1,2,3]

机构：[1]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China;[2]Minist Educ, Engn Res Ctr Resource Utilizat Carbon containing W, Shanghai 200237, Peoples R China;[3]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2023

卷号：53

外文期刊名：JOURNAL OF WATER PROCESS ENGINEERING

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001026692600001)】；

基金：This work was supported by the National Natural Science Foundation of China (grant no. 51778230) . The manuscript was written through contributions of all authors. All authors have given approval to the final version of the manuscript.

语种：英文

外文关键词：nZVI composites; Modification; Adsorption; Heavy metals

摘要：Heavy metals pollution has become a severe threat to human health and a challenging problem. Nano zero-valent iron (nZVI) has a unique core-shell structure. The core Fe0 has the reducing ability, and the iron oxide shell provides the reaction site, showing superior performance for heavy metals removal. This review summarized recent approaches to the modification of nZVI materials such as bimetal modification, sulfidation modification, surfactant modification and porous material supported nZVI. Then, the influence of environmental factors on the removal of heavy metals by nZVI composites and the mechanism (adsorption, reduction and oxidation mecha-nisms) were analyzed. And the application of the composite material in the permeable reactive barrier (PRB) and fluidized bed reactor (FBR). Finally, the requirements and challenges for applying nZVI-based composites were described to provide a basis for the future synthesis of green, efficient, and environmental-friendly materials.