摘要
近年来,新型纳米材料MXene因独特的形态及化学结构受到了广泛关注。MXene是一个二维过渡金属碳化物和氮化物的家族,通常由刻蚀前驱体MAX层状金属陶瓷相合成。通过刻蚀较弱的A原子将MAX上下两层抽出,即可得到层状的MXene材料。该类材料具有类石墨烯二维层状结构、较大的比表面积、良好的亲水性能、优异的稳定性和导电性,被广泛应用于吸附多种污染物质。介绍了MXene材料的制备方法,综述了MXene材料在重金属吸附领域的应用及机理,分析了影响MXene材料吸附性能的主要因素,最后指出了MXene材料面临的挑战并展望了未来的研究方向。
In recent years,the new nanomaterial MXene has received extensive attention due to its unique morphol⁃ogy and chemical structure.MXene is a family of two-dimensional transition metal carbides and nitrides,usually synthesized by etching precursor MAX layered cermet phase.By etching the weaker A atoms,the layered MXene material is extracted from the upper and lower layers.This type of material has the characteristics of graphene-like two-dimensional layered structure,large specific surface area,good hydrophilic properties,excellent stability and electrical conductivity,and is widely used to adsorb various pollutants.In this article,the preparation methods of MXene were introduced,the application and mechanism of MXene materials in the field of heavy metal adsorption were reviewed,and the main factors affecting the adsorption performance of MXene material were analyzed.Finally,the challenges faced by MXene materials were pointed out and the future research direction was prospected.
作者
胡俊毅
李仕友
贺俊钦
汪杨
周耀辉
HU Junyi;LI Shiyou;HE Junqin;WANG Yang;ZHOU Yaohui(Hunan Provincial Key Laboratory of Pollution Control and Resources Technology,University of South China,Hengyang 421000,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2022年第6期116-124,共9页
Industrial Water Treatment
基金
湖南省教育厅科研项目(21C0285)
湖南省自然科学基金项目(2022JJ30490)
南华大学博士科研启动资金项目(200XQD025)。
关键词
二维材料
MXene
蚀刻法
放射性核素
重金属吸附
two-dimensional materials
MXene
etching method
radionuclide
heavy metal adsorption
