文献类型：期刊文献

英文题名：Recent advances of carbon-based nano zero valent iron for heavy metals remediation in soil and water: A critical review

作者：Liang, Weiyu[1];Wang, Gehui[1];Peng, Cheng[1,2];Tan, Jiaqi[3];Wan, Jiang[1];Sun, Pengfei[4];Li, Qiannan[1];Ji, Xiaowen[1];Zhang, Qi[1];Wu, Yonghong[4];Zhang, Wei[1,2]

机构：[1]East China Univ Sci & Technol, Sch Resource & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]Shanghai Acad Environm Sci, Shanghai 200233, Peoples R China;[3]Louisiana State Univ, Dept Biol Sci, Baton Rouge, LA 70803 USA;[4]Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, 71 East Beijing Rd, Nanjing 210008, Peoples R China

年份：2022

卷号：426

外文期刊名：JOURNAL OF HAZARDOUS MATERIALS

收录：;EI(收录号：20215111354202);WOS:【SCI-EXPANDED(收录号:WOS:000734393600006)】；

基金：This work was financially supported by the National Key Research and Development Program of China (2019YFC1805200, 2018YFC1800600); National Natural Science Foundation of China (21737005, 41877124, 41807461, 42177395); Natural Science Foundation of Jiangsu Province, China (BE2020731); and Gordon and Betty Moore Foundation (10635).

语种：英文

外文关键词：Carbon-based materials; Nano zero valent iron; Heavy metals; Environmental remediation

摘要：Heavy metal pollution in soil and water has presented a new challenge for the environmental remediation technology. Nano zero valent iron (nZVI) has excellent adsorbent properties for heavy metals, and thus, exhibits great potential in environmental remediation. Used as supporting materials for nZVI, carbon-based materials, such as activated carbon (AC), biochar (BC), carbon nanotubes (CNTs), and graphene (GNs) with aromatic rings formed by carbon atoms as the skeleton, have a large specific surface area and porous structure. This paper provides a comprehensive review on the advancement of carbon-based nano zero valent iron (C-nZVI) particles for heavy metal remediation in soil and water. First, different types of carbon-based materials and their com-bination with nZVI, as well as the synthesis methods and common characterization techniques of C-nZVI, are reviewed. Second, the mechanisms for the interactions between contaminants and C-nZVI, including adsorption, reduction, and oxidation reactions are detailed. Third, the environmental factors affecting the remediation ef-ficiency, such as pH, coexisting constituents, oxygen, contact time, and temperature, are highlighted. Finally, perspectives on the challenges for utilization of C-nZVI in the actual contaminated soil and water and on the long-term efficacy and safety evaluation of C-nZVI have been proposed for further development.