Rational Design and Engineering of Quantum-Dot-Sensitized TiO2 Nanotube Arrays for Artificial Photosynthesis

Authors

  • Jungki Ryu,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon 305–701, Republic of Korea
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  • Sahng Ha Lee,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon 305–701, Republic of Korea
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  • Dong Heon Nam,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon 305–701, Republic of Korea
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  • Chan Beum Park

    Corresponding author
    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon 305–701, Republic of Korea
    • Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 335 Science Road, Daejeon 305–701, Republic of Korea.
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Abstract

original image

Chiral compounds are successfully photosynthesized by coupling redox biocatalysis with the photoregeneration of nicotinamide cofactors on quantum-dot-sensitized TiO2 nanotubes under visible light irradiation. Nanotubular morphology and hybridization of TiO2 with CdS enables highly efficient photoregeneration of cofactors by ensuring better diffusion of reaction species and rapid charge separation.

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