Photocatalytic Reduction of Carbon Dioxide over Self-Assembled Carbon Nitride and Layered Double Hydroxide: The Role of Carbon Dioxide Enrichment

Authors

  • Dr. Jindui Hong,

    1. School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 (Singapore), Fax: (+65) 67947553
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  • Dr. Wei Zhang,

    1. School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 (Singapore), Fax: (+65) 67947553
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  • Dr. Yabo Wang,

    1. School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 (Singapore), Fax: (+65) 67947553
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  • Dr. Tianhua Zhou,

    1. School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 (Singapore), Fax: (+65) 67947553
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  • Prof. Rong Xu

    Corresponding author
    1. School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 (Singapore), Fax: (+65) 67947553
    • School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 (Singapore), Fax: (+65) 67947553

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Abstract

A self-assembly of carbon nitride (C3N4) and layered double hydroxide (LDH) was constructed by electrostatic interaction. The pristine nitrate-intercalated Mg-Al-LDH is turned to carbonate LDH through anion exchange during the photoreduction of CO2 in aqueous solution. The carbonate anions enriched in the interlayer of LDH exhibit a remarkably high reduction efficiency to CH4 in the presence of a C3N4 photoabsorber and Pd cocatalyst.

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