Universal production of functionalized 2D nanomaterials via integrating glucose-assisted mechanochemical exfoliation and cosolvent-intensified sonication exfoliation  

作　　者：Zhi-Guo Wang Hui-Yuan Shen Ruo-Lin Yu Jie-Feng Gao Guo-Qiang Zhang Chun Xu Jun Lei Ji-Guang Du Jia-Zhuang Xu Zhong-Ming Li 

机构地区：[1]College of Polymer Science and Engineering,State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu 610065,China [2]School of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225002,China [3]College of Physics,Sichuan University,Chengdu 610065,China

出　　处：《Nano Research》2023年第4期5033-5041,共9页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.52022061,52103099,51973138,and U21A2090).

摘　　要：Two-dimensional(2D)nanomaterials have aroused immense attention in extensive applications due to their intriguing physical and chemical properties.However,there is a formidable challenge to prepare few-layered and functionalized 2D nanomaterials in an effective and universal way.Herein,we developed an integrated strategy of glucose-assisted mechanochemical exfoliation and cosolvent-intensified sonication exfoliation to effectively exfoliate and functionalize 2D materials.Taking exfoliation of boron nitride(BN)as an example,the production yield and functionalization ratio of BN nanosheets(BNNSs)reached 47.5%and 25.8 wt.%,188%and 16%higher than that of BNNSs without sonication exfoliation,respectively.The introduction of glucose not only augmented the friction force between adjacent BN layers to promote the efficiency of ball-milling-driven exfoliation supported by density functional theory calculation,but also reacted with active edges of BNNSs for functionalization.Afterwards,cosolventintensified sonication exfoliation strongly stabilized exfoliated BNNSs,obviously boosting the exfoliation yield.This proposed method is universal for preparing various 2D nanomaterials like molybdenum disulfide,tungsten disulfide,and graphene nanosheets.The thin plate structure and high functionalization ratio enabled the release of property superiorities of 2D nanomaterials.Our work offers a promising prototype to realize mass production of functionalized 2D nanomaterials.

关 键 词：two-dimensional materials GLUCOSE COSOLVENT EXFOLIATION FUNCTIONALIZATION 

分 类 号：TB383[一般工业技术—材料科学与工程]