铁基纳米材料去除水中重金属研究进展  

Research Progress of Iron-Based Nanomaterials for Heavy Metals Removal in Water

作　　者：王研谛 史俊[1] 邓慧萍[1] WANG Yandi;SHI Jun;DENG Huiping(College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学环境科学与工程学院,上海200092

出　　处：《净水技术》2023年第6期32-44,共13页Water Purification Technology

基　　金：国家重点研发计划“绿色宜居村镇技术创新”重点专项:西北村镇非常规饮用水源收集净化(2020YFD1100501)。

摘　　要：在人类社会高速发展的同时,重金属被排入水体中造成严重的环境污染。铁基纳米材料是环境领域应用最广泛的纳米材料之一,因其反应活性高、吸附性能好、分离回收方便和反应产物环境友好等优点,在分离/固定水中重金属方面受到广泛关注。文中主要综述了铁基纳米材料对水中重金属污染修复的研究进展,总结了铁基纳米材料的制备、分类、功能化方法,探讨了铁基纳米材料去除重金属离子可能的反应机理,包括物理吸附、化学吸附、氧化/还原以及沉淀。文中对影响重金属离子去除的几个环境因素(pH、温度、共存成分)进行了总结归纳。最后,对铁基纳米材料在重金属废水处理领域中的发展前景进行了展望。With the rapid development of human society,heavy metals are discharged into water body,causing serious environmental pollution.Iron-based nanomaterial is one of the most widely used nanomaterials in the field of environment.Because of its high reactivity,good adsorption performance,easy separation and easy recovery,and environmentally friendly,it has attracted wide attention in the separation/fixation of heavy metals in water.This paper mainly reviews the research progress of iron-based nanomaterial in the remediation of heavy metal pollution in water.The preparation,classification and functionalization methods of iron-based nanomaterial are summarized.The possible reaction mechanism of iron-based nanomaterial in the removal of heavy metal ions,including physical adsorption,chemical adsorption,oxidation/reduction and precipitation are discussed.Several environmental factors affecting the removal of heavy metal ions(pH value,temperature,coexisting components)are analyzed.Finally,the development prospect of iron-based nanomaterial in the field of heavy metal wastewater treatment is prospected.

关 键 词：重金属 铁基纳米材料 功能化 改性 去除机理 

分 类 号：X703[环境科学与工程—环境工程]