Synthesis of TiO₂/RGO Nanocomposites by Hydrothermal Method and their Photocatalytic Activity Research

Abstract:

The TiO₂ reduced graphene oxide (TiO₂/RGO) nanocomposites were synthetized by hydrothermal method. The microstructure and morphologies of them were characterized by XRD and SEM. The photocatalytic activity was investigated by the methyl orange photogradation under UV illumination. The results showed that GO sheets had wrinkles and folds, and anatase-structured TiO₂ covered on graphene surface after hydrothermal reaction. Compared to the TiO₂ nanoparticles, the TiO₂/RGO nanocomposites display the higher photogradation efficiency. In 90 minutes, the gradation percentage of TiO₂/RGO nanocomposites to methyl orange is 80%, higher than TiO₂ nanoparticle (40%). This is attributed to the large surface area of TiO₂/RGO nanocomposites and their improved separation efficiency of electron-hole pair.

• Periodical: Materials Science Forum (Volume 814)
• Pages: 178-181
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.814.178
• Online since: March 2015
• Authors: Jin Feng Leng*, Ying Zi Wang, Xin Ying Teng, De Jiang Hu
• Keywords: Graphene, Hydrothermal Method, Nanocomposites, Photocatalyst, TiO Nanopartilces

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