Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/62131
Title: Synergetic adsorption and photocatalytic degradation of pollutants over 3D TiO2-graphene aerogel composites synthesized : via a facile one-pot route
Authors: Zhang, JJ
Wu, YH
Mei, JY
Zheng, GP 
Yan, TT
Zheng, XC
Liu, P
Guan, XX
Issue Date: 2016
Publisher: Royal Society of Chemistry
Source: Photochemical and photobiological sciences, 2016, v. 15, no. 8, p. 1012-1019 How to cite?
Journal: Photochemical and photobiological sciences 
Abstract: A series of composites consisting of anatase TiO2 nanocrystals and three-dimensional (3D) graphene aerogel (TiO2-GA) were self-assembled directly from tetrabutyl titanate and graphene oxides via a one-pot hydrothermal process. TiO2 was found to uniformly distribute inside the 3D network of GA in the resulting composites with large surface areas (SBET > 125 m2 g-1) and high pore volumes (Vp > 0.22 cm3 g-1). In comparison with GA and TiO2, the composites possessed much higher adsorption capacities and visible light photocatalytic activity in the degradation of rhodamine B (RhB). With an initial concentration of 20.0 mg L-1 of RhB, the adsorptive decolourization of RhB was as high as 95.1% and the total decolourization value reached up to 98.7% under visible light irradiation over 5.0 mg of the resulting composites. It was elucidated that the physical and chemical properties of the TiO2-GA composites could be ascribed to their unique 3D nanoporous structure with high surface areas and the synergetic activities of graphene nanosheets and TiO2 nanoparticles.
URI: http://hdl.handle.net/10397/62131
ISSN: 1474-905X (print)
1474-9092 (online)
DOI: 10.1039/c6pp00133e
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