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Hot electrons coupling-enhanced photocatalysis of super black carbon aerogels/titanium oxide composite

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Abstract

To evaluate whether the photocatalysis efficiency of titanium oxide (TiO2) increases under the shading of carbon aerogel (CA), super black CA/ TiO2 composite sheets were directly fabricated by physical mixing of CA, TiO2 powder, and binder. It was found that the photocatalysis efficiency of composite sheets were higher than that of pure TiO2 sheet. We attribute this phenomenon to the hot electrons coupling between CA and TiO2. Besides the direct light absorption of TiO2, the hot electrons generating and indirect energy transfer from CA to TiO2 may enhance the photocatalysis efficiency of TiO2.

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Authors and Affiliations

  1. Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, Tongji University, Shanghai, 200092, People’s Republic of China

    Hongqiang Wang, Bin Zhou, Jun Shen & Ai Du

  2. School of Physics Science and Engineering, Tongji University, Shanghai, 200092, People’s Republic of China

    Hongqiang Wang, Xinru He, Bin Zhou, Jun Shen & Ai Du

Authors
  1. Hongqiang Wang
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  2. Xinru He
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  3. Bin Zhou
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  4. Jun Shen
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  5. Ai Du
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Corresponding author

Correspondence to Ai Du.

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These authors contributed equally to this work and should be considered co-first authors.

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Supplementary material

The supplementary material for this article can be found at https://doi.org/10.1557/mrc.2018.73

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Wang, H., He, X., Zhou, B. et al. Hot electrons coupling-enhanced photocatalysis of super black carbon aerogels/titanium oxide composite. MRS Communications 8, 521–526 (2018). https://doi.org/10.1557/mrc.2018.73

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  • DOI: https://doi.org/10.1557/mrc.2018.73

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