摘要本文的目的是研究氟化石墨烯（FG）在亲核试剂作用下的刻蚀作用，探究亲核试剂对氟化石墨烯表面脱氟的催化作用的影响，从而为石墨烯分子筛膜的研制及吸附选择性研究做铺垫。由于不同种类的卤化石墨烯之间的稳定性存在较大的差异，所以本文利用卤化石墨烯的这个特点对氟化石墨烯进行刻蚀实验。实验中利用碘化钾（KI）与氟化石墨烯表面离子化氟原子间的碘代反应形成碘代FG，再加热脱碘，通过重构周围碳原子sp2结构，在氟化石墨烯表面形成亚稳态“坏点”（烯丙基氟）。然后利用不同亲核试剂，削弱 “坏点”与周围碳原子的键接强度，在超声条件下进行化学刻蚀，脱除烯丙基氟，在分子尺度上调控FG片微孔孔径。对所得到的产物利用接触角仪、X射线光电子能谱（XPS）、X射线衍射（XRD）以及傅立叶红外光谱仪（FTIR）进行结构及性能的表征，分析了这几种亲核试剂的脱氟催化能力。26339
关键词 氟化石墨烯 刻蚀 碘代反应 亲核试剂 超声
毕业论文设计说明书外文摘要
Title Fluorographene molecular sieve membranes’ Surface functionalization
Abstract
In this paper, we study fluorographene under the influence of nucleophilic reagent of fluorographene etching effect, to explore the nucleophilic reagent on the surface of fluorographene defluorization catalytic effect, thus developed for graphene molecular sieve membrane and the selectivity of adsorption study. Due to the different kinds of halogenated graphene, there are many differences in the stability. So using this characteristics of halogenated graphene for etching experiments in this paper. In the experiment choosing potassium iodide to have an iodination reaction with ionization fluorine atoms on the surface of the fluorographene and resulting fluorographene iodide, reheating fluorographene iodide and producing a metastable “bad points”. Then using the nucleophilic reagent to have chemical etching under the condition of ultrasound. Of the resulting graphene, was investigated by X-ray Photoelectron Spectroscopy (XPS), X-ray diffraction (XRD) and Fourier Transform Infrared Spectrometer （FTIR） analysis. Using these analysis results several nucleophilic reagent defluorization catalytic ability were investigated.
Keywords fluorographene etching iodination nucleophilic reagent ultrasound
目 录
1 绪论 1
1.1 碳材料简介 1
1.2 石墨烯及其衍生物 1
1.2.1 石墨烯 1
1.2.2 氧化石墨烯 2
1.2.3 氢化石墨烯 3
1.2.4 氟化石墨烯 4
1.2.4.1 氟化石墨烯的发展 5
1.2.4.2 氟化石墨烯的性能与应用 6
1.2.4.3 氟化石墨烯的制备方法 7
1.3 本文研究思路与内容 8
2 氟化石墨烯分散液的制备 10
2.1 研究背景 10
2.2 实验内容 10
2.2.1 实验药品 10
2.2.2 实验仪器 10
2.2.3 实验步骤 11
3 氟化石墨烯的刻蚀实验过程 12
3.1 研究背景 12
3.2 实验内容 12
3.2.1 实验药品 12
3.2.2 实验仪器 13 氟化石墨烯分子筛膜的表面功能化:http://www.751com.cn/huaxue/lunwen_20474.html