Ionic Liquid-Assisted One-Step Hydrothermal Synthesis of TiO2-Reduced Graphene Oxide Composites  

作　　者：Jianfeng Shen Min Shi Bo Yan Hongwei Ma Na Li Mingxin Ye 

机构地区：[1]Center of Special Materials and Technology, Fudan University, Shanghai, 200433, China

出　　处：《Nano Research》2011年第8期795-806,共12页纳米研究（英文版）

摘　　要：We have demonstrated a facile and efficient strategy for the fabrication of soluble reduced graphene oxide sheets （RGO） and the preparation of titanium oxide （TiO2） nanoparticle-RGO composites using a modified one-step hydrothermal method. It was found that graphene oxide could be easily reduced under solvothermal conditions with ascorbic acid as reductant, with concomitant growth of TiO2 particles on the RGO surface. The TiO2-RGO composite has been thoroughly characterized by Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and thermogravimetric analysis. Microscopy techniques （scanning electron microscopy, atomic force microscopy, and transmission electron microscopy） have been employed to probe the morphological characteristics as well as to investigate the exfoliation of RGO sheets. The TiOR-RGO composite exhibited excellent photocatalysis of hydrogen evolution.我们为可溶的减少的 graphene 氧化物表(RGO ) 和钛氧化物(TiO2 ) 的准备的制造表明了灵巧、有效的策略用一出修改一步舞的 nanoparticle-RGO composites 热水的方法。graphene 氧化物能容易作为 reductant 与维生素酸在 solvothermal 条件下面被减少，这被发现，与 RGO 表面上的 TiO2 粒子的伴随物生长。TiO2-RGO 合成被 Fourier 变换彻底地描绘了红外线的光谱学，拉曼光谱学， X 光检查衍射， X 光检查光电子光谱学，和 thermogravimetric 分析。显微镜学技术(扫描电子显微镜学，原子力量显微镜学，和传播电子显微镜学) 被采用了探查词法特征以及调查 RGO 表的脱落。TiO2-RGO 氢的合成展出优秀光催化进化。

关 键 词：Reduced graphene oxide TIO2 HYDROTHERMAL ionic liquid NANOCOMPOSITE 

分 类 号：O613.71[理学—无机化学] TB34[理学—化学]