Nano Research

, 4:795 | Cite as

Ionic liquid-assisted one-step hydrothermal synthesis of TiO2-reduced graphene oxide composites

  • Jianfeng Shen
  • Min Shi
  • Bo Yan
  • Hongwei Ma
  • Na Li
  • Mingxin Ye
Article

Abstract

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 TiO2-RGO composite exhibited excellent photocatalysis of hydrogen evolution.

Keywords

Reduced graphene oxide TiO2 hydrothermal ionic liquid nanocomposite 

Supplementary material

12274_2011_136_MOESM1_ESM.pdf (625 kb)
Supplementary material, approximately 265 KB.

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Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Jianfeng Shen
    • 1
  • Min Shi
    • 1
  • Bo Yan
    • 1
  • Hongwei Ma
    • 1
  • Na Li
    • 1
  • Mingxin Ye
    • 1
  1. 1.Center of Special Materials and TechnologyFudan UniversityShanghaiChina

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