A Facile Band Alignment of Polymeric Carbon Nitride Semiconductors to Construct Isotype Heterojunctions

Authors

  • Jinshui Zhang,

    1. Research Institute of Photocatalysis, Fujian Provincial Key Laboratory of Photocatalysis-State Key Laboratory Breeding Base, and College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002 (P. R. China)
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  • Mingwen Zhang,

    1. Research Institute of Photocatalysis, Fujian Provincial Key Laboratory of Photocatalysis-State Key Laboratory Breeding Base, and College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002 (P. R. China)
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  • Dr. Rui-Qing Sun,

    1. Research Institute of Photocatalysis, Fujian Provincial Key Laboratory of Photocatalysis-State Key Laboratory Breeding Base, and College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002 (P. R. China)
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  • Prof. Xinchen Wang

    Corresponding author
    1. Research Institute of Photocatalysis, Fujian Provincial Key Laboratory of Photocatalysis-State Key Laboratory Breeding Base, and College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002 (P. R. China)
    • Research Institute of Photocatalysis, Fujian Provincial Key Laboratory of Photocatalysis-State Key Laboratory Breeding Base, and College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002 (P. R. China)
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  • Supported by the National Basic Research Program of China (973 Program, 2013CB632405) and the National Natural Science Foundation of China (21033003, 21173043, and U1033603).

Abstract

original image

Junction function: All-organic isotype heterojunctions are formed through the band alignment of polymeric carbon nitride semiconductors (CN and CNS, see scheme), improving the efficiency of charge separation and prolonging the lifetime of charge carriers. These polymeric heterostructures demonstrate an excellent performance for heterogeneous photocatalysis, as shown in a hydrogen-generation assay.

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