绿锈在调控污染物迁移转化中的作用及机制  

Roles and Mechanisms of Green Rust in Regulating Pollutants

作　　者：孙超男 张栋[1] 赵红挺 SUN Chaonan;ZHANG Dong;ZHAO Hongting(College of materials and environmental engineering,Hangzhou Dianzi University,Hangzhou Zhejiang 310018,China)

机构地区：[1]杭州电子科技大学材料与环境工程学院,浙江杭州310018

出　　处：《杭州电子科技大学学报（自然科学版）》2020年第6期81-89,共9页Journal of Hangzhou Dianzi University：Natural Sciences

基　　金：国家自然科学基金资助项目(41271249,41977017)。

摘　　要：绿锈一般存在于氧化还原交替的水成土中。作为类水滑石矿物,绿锈具有独特的层间结构、可交换阴离子和氧化还原特性,对各类阴离子污染物(含氧阴离子重金属、无机氮磷)和部分阳离子无机污染物(如放射性和重金属阳离子)均具有良好的吸附和转化能力,是一种环境友好、高效的环境功能材料。回顾了近年来绿锈在调控环境污染物(如放射性元素、氮磷、重金属阴离子和有机物等)迁移和转化等方面的研究进展,综述了其调控机理(如吸附、氧化、还原等),旨在为进一步研究绿锈类环境材料用于污染治理提供一些参考。Green rust formed naturally in hydromorphic soils under reducing conditions due to the slow oxidation of iron.As a hydrotalcite-like mineral,green rust has a unique interlayer structure containing exchangeable anions with redox properties.This paper reviews recent research progress of the role of green rust in regulating environmental behaviors of many pollutants,such as radionuclides,inorganic nitrogen,phosphorus,heavy metals and organic pollutants.Possible reaction mechanisms such as adsorption,oxidation and reduction,as well as the potential role of use of green rust in environmental remediation are also discussed.

关 键 词：绿锈 氧化 还原 吸附 迁移 

分 类 号：X131.3[环境科学与工程—环境科学]