摘要/Abstract

二维纳米材料因其具有独特的物理化学性质得到了广泛的研究与关注.然而，自下而上制备稳定的二维纳米材料仍然面临巨大挑战.本工作以1，4-苯二硫醇为有机配体和Cu⁺为金属前驱体，通过配位相互作用自组装构筑了一种新型的二维金属有机配合物纳米片（Cu-BDT）.Cu-BDT纳米片的形貌和结构被多种技术详细表征，包括粉末X射线衍射（P-XRD）、傅里叶变换红外光谱（FT-IR）、激光拉曼光谱（Raman）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、原子力显微镜（AFM）、X射线光电子能谱（XPS）、电感耦合等离子体发射光谱仪（ICP-OES）和接触角测试.催化实验证实，Cu-BDT纳米片表面暴露充分的活性位点和疏水特性有利于硫醚类化合物氧化反应的进行，可高效转化为亚砜类产物.
关键词: 金属有机配合物, 二维纳米片, 疏水性, 硫醚类化合物氧化
Two-dimensional nanomaterials have received extensive attention because of their unique physicochemical properties. However, bottom-up synthesis of two-dimensional (2D) stable nanomaterials still remains great challenge. In this work, a novel 2D metal-organic (Cu-BDT) nanosheet is constructed at room temperature by coordinative self-assembly, namely, using monovalent copper ion as the metal precursor and 1,4-benzenedithiol as organic ligand. As-synthesized Cu-BDT nanosheets are fully characterized by various techniques including powder-diffraction of X-rays (P-XRD), Fourier transform infrared spectrometer (FT-IR), Raman spectra (Raman), scanning electron microscopy (SEM), transmission electron microscope (TEM), atomic force microscope (AFM), X-ray photoelectron spectroscopy (XPS), inductively coupled plasma optical emission spectrometer (ICP-OES) and contact angle test. The catalytic result verifies that the Cu-BDT nanosheet surfaces possess abundant active sites and good hydrophobicity, which facilitate oxidation of sulfides into sulfoxide compounds.
Key words: metal organic coordination complex, two-dimensional nanosheet, hydrophobicity, sulfides oxidation


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