TiO_(2)/MXene纳米复合材料的 可控制备及在光催化和电化 学中的应用研究进展  

Research progress on controllable preparation of TiO_(2)/MXene nanocomposites and applications in photocatalysis and electrochemistry

作　　者：李华鹏 董旭晟 孙彬[1,2] 周国伟[1,2] LI Hua-peng;DONG Xu-sheng;SUN Bin;ZHOU Guo-wei(School of Chemistry and Chemical Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China;Key Laboratory of Fine Chemicals in Universities of Shandong,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China)

机构地区：[1]齐鲁工业大学(山东省科学院)化学与化工学院,济南250353 [2]齐鲁工业大学(山东省科学院)山东省高校轻工精细化学品重点实验室,济南250353

出　　处：《材料工程》2021年第8期54-62,共9页Journal of Materials Engineering

基　　金：国家自然科学基金项目(51972180,51572134);山东省自然科学基金项目(ZR2019BB030);山东省重点研发计划资助项目(2019GGX102070);济南市高校院所创新团队资助项目(2018GXRC006)。

摘　　要：TiO_(2)纳米材料因其存在高的光生电子-空穴对复合速率、电子迁移率低、导电性差以及可逆容量低等问题,使其在光催化和电化学等领域的应用受到限制。MXene(M n+1 X n T x)作为一种新型的二维过渡金属碳化物、氮化物或碳氮化物,具有独特的二维层状结构、良好的金属导电性和较高的载流子迁移率等特性,将其引入TiO_(2)纳米材料中构建TiO_(2)/MXene纳米复合材料,利用两者的协同作用可进一步提高光电性能。本文从TiO_(2)纳米材料的角度出发,系统综述了零维、一维和二维TiO_(2)与MXene纳米复合材料的可控制备、结构性能及在光催化和电化学领域应用的最新研究进展,并着重介绍了纳米复合材料的构筑机理及MXene对提高TiO_(2)的光催化和电化学性能的增强机制等,分析了目前TiO_(2)/MXene复合材料的制备及其在光催化和电化学领域应用中存在的不足。此外,从优化制备工艺、提升性能和探索相应的性能增强机制等方面对未来TiO_(2)/MXene复合材料的研究方向进行了展望。TiO_(2) nanomaterials have many disadvantages,including high photo-generated electron-hole recombination rate,low electron mobility,poor electrical conductivity and low reversible capacity,which have restricted application in the fields of photocatalysis and electrochemistry.MXene(M n+1 X n T x),a new type of two-dimensional transition metal carbides,nitrides,or carbonitrides,has a unique two-dimensional layer structure,excellent electrical conductivity,and high carrier mobility.By introducing MXene into TiO_(2) nanomaterials to construct the TiO_(2)/MXene nanocomposites,the synergistic effect of MXene and TiO_(2) can further improve photocatalysis and electrochemistry properties.From the perspective of TiO_(2) nanomaterials,the latest research progress on the controllable preparation,structural properties,applications in photocatalysis and electrochemistry of zero-dimensional,one-dimensional,and two-dimensional TiO_(2) with MXene nanocomposites were reviewed.In particular,the construction mechanism of namocomposites and the enhancement mechanism of photocatalysis and electrochemistry properties of TiO_(2) by MXene were emphasized.The shortcomings of the existing research on preparation of TiO_(2)/MXene composites and its applications in photocatalysis and electrochemistry were analyzed.Furthermore,the future research directions of TiO_(2)/MXene composites from the aspects of optimizing the preparation process,improving the properties and exploring the property enhancement mechanism were also prospected.

关 键 词：TiO_(2)/MXene纳米复合材料 TiO_(2)纳米材料 MXene 光催化 电化学 

分 类 号：TB33[一般工业技术—材料科学与工程]