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Rong-jie Qi, Jun-ying Liu, Zhi-dong Wei , Wei-qi Guo, Zhi Jiang, Wen-feng Shangguan. In-situ one-pot fabrication of MoO3-x clusters modified polymer carbon nitride for enhanced photocatalytic hydrogen evolution[J]. Chinese Journal of Chemical Physics .
Citation: Rong-jie Qi, Jun-ying Liu, Zhi-dong Wei , Wei-qi Guo, Zhi Jiang, Wen-feng Shangguan. In-situ one-pot fabrication of MoO3-x clusters modified polymer carbon nitride for enhanced photocatalytic hydrogen evolution[J]. Chinese Journal of Chemical Physics .

In-situ one-pot fabrication of MoO3-x clusters modified polymer carbon nitride for enhanced photocatalytic hydrogen evolution

  • Accepted Date: 2020-07-02
  • Available Online: 2020-02-21
  • Developing low-cost and high-efficient noble-metal-free cocatalysts has been a challenge to achieve economic hydrogen production. In this work, molybdenum oxides (MoO3-x) were in-situ loaded on polymer carbon nitride (PCN) via a simple one-pot impregnation-calcination approach. Different from post-impregnation method, intimate coupling interface between high-dispersed ultra-small MoO3-x nanocrystal and PCN was successfully formed during the in-situ growth process. The MoO3-x-PCN-x photocatalyst without noble platinum (Pt) finally exhibited enhanced photocatalytic hydrogen performance under visible light irradiation (λ>420 nm), with the highest hydrogen evolution rate of 15.6 μmol/h, which was more than 3 times that of bulk PCN. Detailed structure-performance revealed that such improvement in visible-light hydrogen production activity originated from the intimate interfacial interaction between high-dispersed ultra-small MoO3-x nanocrystal and polymer carbon nitride as well as efficient charge carriers transfer brought by Schottky junction formed.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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