磁性Fe_3O_4纳米颗粒的制备及在水处理中的应用  

Preparation of magnetic Fe_3O_4 nanoparticles and their application in water treatment

作　　者：展思辉[1] 张宇[1] 朱丹丹[1] 邱明英[1] 于雯超[1] 史强[1] 

机构地区：[1]南开大学环境科学与工程学院,天津300071

出　　处：《环境工程学报》2016年第1期1-11,共11页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(21377061);亚洲研究中心基金资助项目(AS1326);天津市自然科学基金资助项目(12JCQNJC05800);天津市科技支撑重点项目(13ZCZDSF00300)

摘　　要：众所周知,纳米颗粒在去除水中污染物的过程中易团聚,还会造成水体的二次污染。磁性Fe_3O_4纳米颗粒因其能迅速从水中分离的特性而被广泛关注。改性之后的磁性Fe_3O_4纳米颗粒在水中污染物的去除方面有很好的应用。对磁性Fe_3O_4纳米颗粒及其载体或复合物的制备方法进行了概述,重点对水中污染物的去除从3个方面进行了阐述:磁性Fe_3O_4纳米材料对水中重金属的吸附、有机物的吸附及水中细菌和医疗废物的处理。As we all know,nanoparticles usually agglomerate while removing contaminants from water,which can cause secondary pollution. Therefore,magnetic Fe3O4 nanoparticles have attractted more attentions due to that it can be separated from water with an outer magnet. Recently,modified magnetic Fe3O4 nanoparticles have been used to clean polluted water. Herein,several research progresses about magnetic Fe3O4 nanoparticles were reviewed in detailed,such as the preparation methods,modification technologies,and their environmental applications. Futhermore,three important highlights for cleaning water environmental were also discussed,such as the adsorption of heavy metals and organic matter,the treatment of bacteria and medical waste in water.

关 键 词：磁性 FE3O4 纳米颗粒 

分 类 号：X703[环境科学与工程—环境工程]