Solvent-regulated preparation of well-intercalated Ti3C2Tx MXene nanosheets and application for highly effective electromagnetic wave absorption

• DOI: 10.1088/1361-6528/aac8f6
• Publication Date: 2018-05-31T10:45:19Z
• Authors: Gengfang Xu; Xiaoxia Wang; Shida Gong; Shuang Wei; Jingquan Liu; Yuanhong Xu
• Keywords: 02 engineering and technology; 0210 nano-technology

MXene-derived nanostructures provide the possibility of meeting requirements strong absorption, thin thickness and flexible layer for electromagnetic (EM) wave absorption. However, exploration pure well-intercalated MXene nanosheets efficient EM absorption is still in nascent stages. Herein, Ti3C2Tx with solvent-manipulated properties were achieved via ultrasonication-solvothermal treatment bulk different solvents including dimethylformamide (DMF), ethanol, dimethyl sulfoxide (DMSO), respectively, because their combined influences molecular size, oxidation capability, boiling point. Especially, it was found that a larger space less effects on observed upon solvothermal DMF than those ethanol or DMSO treatment. As result, DMF-treated can be used as highly effective dielectric materials The reflection loss value reached −41.9 dB (more 99.99%) at 13.4 GHz sample only 1.1 mm. Characterization techniques scanning electron microscopy, transmission atomic force x-ray diffraction, photoelectron spectroscopy, Fourier transform infrared density functional theory calculation to elaborate possible mechanisms.