Current Graphene Science

Zhen Zhou  
Nankai University
P.R. China

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Graphene/Porous Beta TiO2 Nanocomposites Prepared Through a Simple Hydrothermal Method

(E-pub Ahead of Print)

Author(s): Yuqin Zhang, Hengcong Tao, Yunnan Gao, Tao Ma, Jingjing Ding, Zhenyu Sun.

Abstract:

The synthesis of graphene/beta TiO2 nanocomposites with well-defined morphology remains lacking. In this study, porous TiO2 (B) nanosheets were attained resulting from the thermal hydrolysis of TiCl3, and grown vertically on the surface of few-layer graphene (FLG) stabilized by ethylene glycol. The morphology and microstructure of this material were characterized in detail by X-ray diffraction, X-ray photoelectron spectroscopy, scanning and transmission electron microscopy, and N2 adsorption/desorption. High-resolution transmission electron microscopy along with N2 adsorption/desorption measurements illustrated the formation of mesopores in these TiO2 (B) nanosheets. The presence of FLG played a significant role in inhibiting the phase transformation of beta TiO2 to anatase during annealing which otherwise occurs rapidly without FLG. The resulting novel structure, FLG/porous beta TiO2 nanocomposite, may be an interesting photocatalyst for the conversion of solar energy to chemical fuels.

Keywords: beta-titania, few-layer graphene, hydrolysis, nanosheet, nanocomposite, porous.

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Article Details

VOLUME: 1
Year: 2017
(E-pub Ahead of Print)
DOI: 10.2174/2452273201666161026162838
Price: $95