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TiO2 quantum dots grown on graphene by atomic layer deposition as advanced photocatalytic hybrid materials

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Abstract

The interfacial charge transfer phenomenon between atomic layer deposition (ALD) TiO2 and graphene substrate was investigated. A significant photocatalytic enhancement of TiO2 quantum dots/graphene hybrid nanocomposite over P25 TiO2 and TiO2 ALD film/graphene was observed. A control experiment with a conformal Al2O3 ALD film between ALD TiO2 film and graphene substrates provides direct evidences for this photocatalytic enhancement.

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Acknowledgements

The work at Chongqing Normal University was supported by the Chongqing Municipal Education Commission (KJ130601), the Natural Science Foundation of China (No. 21271192), and the Natural Science Foundation of Chongqing Municipality (cstc2014jcyjA50035).

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Authors and Affiliations

  1. College of Chemistry, Chongqing Normal University, Chongqing, 401331, People’s Republic of China

    Liu Yang, Li Jiang, Wensheng Fu, Xue Hu & Yun Zhou

  2. Department of Chemistry and Biochemistry, University of Colorado at Boulder, Colorado, 80309, USA

    Alan W. Weimer

Authors
  1. Liu Yang
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  2. Li Jiang
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  3. Wensheng Fu
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  4. Alan W. Weimer
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  5. Xue Hu
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  6. Yun Zhou
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Correspondence to Yun Zhou.

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Yang, L., Jiang, L., Fu, W. et al. TiO2 quantum dots grown on graphene by atomic layer deposition as advanced photocatalytic hybrid materials. Appl. Phys. A 123, 416 (2017). https://doi.org/10.1007/s00339-017-1018-y

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