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Cited by 249

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One-Step Preparation of Graphene-Supported Anatase TiO2 with Exposed {001} Facets and Mechanism of Enhanced Photocatalytic Properties

Gu, Liuan, Wang, Jingyu, Cheng, Hao, Zhao, Yizhi, Liu, Lifei, Han, Xijiang·2013·ACS Applied Materials & Interfaces

Abstract

Anatase TiO2 nanosheets supported on reduced graphene oxide (RGO) were synthesized via a one-step, solvothermal method. During the solvothermal step, graphene oxide (GO) was reduced to RGO, and, subsequently, anatase TiO2 with 73.7% exposed {001} facets was grown in situ on the surfaces of the RGO nanosheets. Compared with pure TiO2, the RGO/TiO2 hybrid nanocomposite had improved photoactivity as a result of effective photoinduced electron transfer from TiO2 to the RGO acceptor through interfacial interactions. Trapping tests showed that the oxidation of dye molecules proceeded for about 22% through the reaction with (•)OH radicals, and the remaining 78% occurred via direct interactions with holes. The holes left in TiO2 crystals were the main reason for the enhanced photocatalytic properties of the RGO/TiO2 composite. This paper not only reports the fabrication of highly active photocatalysts but also gives deeper insight into the photocatalytic mechanism of carbon/TiO2 composites.

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Metadata

Authors
Gu, L., Wang, J., Cheng, H., Zhao, Y., Liu, L., & Han, X.
Venue
ACS Applied Materials & Interfaces
Published
2013-04-10
Volume
5
Issue
8
Pages
3085-3093
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
OpenAlex
W2333226394
Cited by
249
References
1
FWCI
11.78
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: One-Step Preparation of Graphene-Supported Anatase TiO2 with Exposed {001} Facets and Mechanism of Enhanced Photocatalytic Properties. https://app.cochat.ai/papers/10.1021/am303274t
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Gu, L., Wang, J., Cheng, H., Zhao, Y., Liu, L., & Han, X. (2013). One-Step Preparation of Graphene-Supported Anatase TiO2 with Exposed {001} Facets and Mechanism of Enhanced Photocatalytic Properties. ACS Applied Materials & Interfaces. https://doi.org/10.1021/am303274t

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