Enhanced visible-light-driven photocatalytic H2 evolution on the novel nitrogen-doped carbon dots/CuBi2O4 microrods composite

A novel nitrogen doped carbon dots (N-CDs) modified CuBi2O4 photocatalyst was prepared through a facile hydrothermal method, and applied to the photocatalytic water splitting under visible light irradiation (λ > 400 nm). Results exhibited the increased photocatalytic hydrogen production of N-CDs/...

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Bibliographic Details
Published in:Journal of alloys and compounds 2019-02, Vol.775, p.511-517
Main Authors: Shi, Weilong, Guo, Feng, Li, Mingyang, Shi, Yu, Wu, Mingfang, Tang, Yubin
Format: Article
Language:English
Subjects:
CDs
CuBi2O4
Hydrogen production
N-CDs
Photocatalyst
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Summary:A novel nitrogen doped carbon dots (N-CDs) modified CuBi2O4 photocatalyst was prepared through a facile hydrothermal method, and applied to the photocatalytic water splitting under visible light irradiation (λ > 400 nm). Results exhibited the increased photocatalytic hydrogen production of N-CDs/CuBi2O4 compared with pure CuBi2O4 and CDs/CuBi2O4. The excellent photocatalytic performance of N-CDs/CuBi2O4 composite was attributed to efficient synergistic effect between N-CDs and CuBi2O4, which increased light harvesting and electron transfer capacity. Additionally, a possible photocatalytic mechanism of N-CDs/CuBi2O4 composite was proposed. •N-CDs/CuBi2O4 photocatalyst was prepared through a facile hydrothermal method.•The composite exhibit superior photocatalytic activity in comparison of pure CuBi2O4 and CDs/CuBi2O4.•The photocatalytic mechanism of N-CDs/CuBi2O4 heterojunctions was discussed in detail.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2018.10.095