Nanomaterials with graphene-like structures have many excellent properties different from bulk materials and have become one of the most popular international frontiers in recent years. In this paper, graphene-like molybdenum disulfide materials are prepared by ultrasonic exfoliation method assisted with 1-Dodecanethiol. Double solvent ultrasonic exfoliation is realized by introducing chloroform. In addition, the optimal preparation conditions for the preparation of graphene-based molybdenum disulfide are investigated from the aspects of ultrasonic processing time and volume ratio of 1-Dodecanethiol and chloroform. Ultrasonic cleaning instrument is used in the experiment, it's type is KQ3200E (40KHz, 150 W). Results show that the prepared graphene-like molybdenum disulfide has the highest concentration when the volume ratios of 1-Dodecanethiol and chloroform is 1:1 and ultrasonic processing time is 12 h. The dispersion of graphene-like molybdenum disulfide in low-boiling organic solvents, such as chloroform, tetrahydrofuran (THF), isopropanol (IPA), acetone, acetonitrile (CH3CN) and ethanol, is realized by solvent exchange method. Characterized by transmission electron microscopy, a relatively thin sheet material is obtained. In addition, the latest methods for preparing graphene-like molybdenum disulfide nanosheet are discussed in view of micromechanical exfoliation, lithium ion intercalation, chemical vapor deposition and chemical synthesis, the advantages and limitations of various preparation methods are compared, the applications of graphene-like molybdenum disulfide nanosheets are also investigated.

中文翻译：

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超声辅助液相剥离制备石墨烯状二硫化钼纳米片的研究。

具有类似石墨烯结构的纳米材料具有许多不同于块状材料的优异性能，并已成为近年来最流行的国际前沿之一。本文以1-十二烷硫醇为辅，通过超声剥离法制备了石墨烯状的二硫化钼材料。通过引入氯仿实现双溶剂超声剥离。此外，从超声处理时间和1-十二烷硫醇与氯仿的体积比等方面，研究了制备石墨烯基二硫化钼的最佳制备条件。实验中使用了超声波清洗仪，型号为KQ3200E（40KHz，150 W）。结果表明，当1-十二烷硫醇与氯仿的体积比为1：1，超声处理时间为12 h时，制得的石墨烯状二硫化钼浓度最高。通过溶剂交换法实现了石墨烯样二硫化钼在氯仿，四氢呋喃（THF），异丙醇（IPA），丙酮，乙腈（CH3CN）和乙醇等低沸点有机溶剂中的分散。通过透射电子显微镜表征，获得了相对薄的片材。此外，从微机械剥离，锂离子嵌入，化学气相沉积和化学合成的角度，讨论了制备石墨烯状二硫化钼纳米片的最新方法，比较了各种制备方法的优点和局限性，