摘要
综述了膨润土改性方法及其复合新材料对重金属吸附研究新进展,由于膨润土来源广泛、储量丰富、结构稳定、价格低廉等优点,同时具有吸附性等独特的物理性能及各种化学性能,因此被广泛应用于去除重金属污染。但是天然膨润土存在吸附容量低、选择性差等缺点,为弥补这些缺陷,近年来膨润土进行活化、有机、无机与聚合物改性及其复合新材料在重金属修复领域取得众多新的进展。展望了改性膨润土用于处理重金属的不足和今后的研究方向,为开发绿色、高效膨润土新复合环境修复材料提供思路和方法。
This article reviews the new developments of bentonite modification methods and its new composite materials for heavy metal adsorption.Due to the wide range of sources,abundant reserves,stable structure,and low price of bentonite,at the same time,it has unique physical properties such as adsorption and various chemical properties,so it is widely used to remove heavy metal pollution.However,natural bentonite has shortcomings such as low adsorption capacity and poor selectivity.To make up for these shortcomings,in recent years,bentonite has made many new progress in the field of heavy metal repair through activation,organic,non-polar and polymer modification and its new composite materials.The deficiencies of modified bentonite used in the treatment of heavy metals and future research directions are prospected,and ideas and methods are provided for the development of new green and efficient bentonite composite environmental remediation materials.
作者
王磊
郭军康
张祎
李晗灏
范小虎
曹赓
WANG Lei;GUO Jun-kang;ZHANG Yi;LI Han-hao;FAN Xiao-hu;CAO Geng(School of Environmental Science and Engineering,Shaanxi University of Science and Technology,Xi’an 710021,China)
出处
《应用化工》
CAS
CSCD
北大核心
2021年第9期2578-2582,共5页
Applied Chemical Industry
基金
陕西省重点研发计划重点项目(2018ZDXM-SF-022)。
关键词
膨润土
改性
吸附
重金属
bentonite
modification
adsorption
heavy metals
作者简介
王磊(1996-),男,陕西榆林人,陕西科技大学在读研究生,师从郭军康教授,主要从事土壤重金属污染修复的研究。电话:18292001056,E-mail:18292001056@163.com;通讯联系人:郭军康(1980-),男,陕西扶风人,教授,博士生导师,主要从事土壤重金属污染修复与尾矿资源化研究。
