Vaso Alexia, Tegkelidi Eleni, Kaloudi Angela S, Gournis Dimitrios P, Tzitzios Vasileios, Boukos Nikos, Kolokithas Ntoukas Argiris, Georgakilas Vasilios I
Department of Materials Science, University of Patras, Rio, 26504, Greece.
Department of Materials Science and Engineering, University of Ioannina, Ioannina, GR-45110, Greece.
Chemistry. 2025 Feb 6;31(8):e202403770. doi: 10.1002/chem.202403770. Epub 2024 Dec 11.
Αfter the impressive evolution of graphene and its derivatives, a large number of two dimensional (2D) materials with important optical and electrical properties have been successfully fabricated. Liquid phase exfoliation (LPE) of layered and non-layered materials has become a widely applied method for the preparation of 2D nanostructures with an extensive variety of applications. However, in most cases organic solvents are used as liquid phase which are often toxic and environmentally unfriendly and lead to low yields. In this work, we present water as a suitable liquid phase and dispersion medium for the exfoliation of layered and non-layered monoelemental solids from IV, V and VI groups of the periodic table, such as silicon, tin, bismuth and tellurium. The 2D nanostructures, silicene, stanene, bismuthene and tellurene are therefore prepared by a completely sustainable and environmentally friendly method. The prepared Xenes, as they are called, are fully characterized by microscopic and spectroscopic techniques.
在石墨烯及其衍生物取得令人瞩目的发展之后，大量具有重要光学和电学性质的二维（2D）材料已被成功制备出来。层状和非层状材料的液相剥离（LPE）已成为一种广泛应用的方法，用于制备具有广泛应用的二维纳米结构。然而，在大多数情况下，有机溶剂被用作液相，这些溶剂通常有毒且对环境不友好，导致产率较低。在这项工作中，我们提出水作为一种合适的液相和分散介质，用于从元素周期表的IV、V和VI族中剥离层状和非层状单元素固体，如硅、锡、铋和碲。因此，二维纳米结构硅烯、锡烯、铋烯和碲烯是通过一种完全可持续且环保的方法制备的。所制备的烯类（如人们所称）通过显微镜和光谱技术进行了全面表征。
