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Issue 14, 2018
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A facile approach to synthesize graphitic carbon nitride microwires for enhanced photocatalytic H2 evolution from water splitting under full solar spectrum

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Abstract

In this study, we fabricated porous fiber-like g-C3N4 photocatalysts by calcifying melamine to improve the photocatalytic hydrogen evolution performance via a facile supramolecular hydrogel approach. The as-prepared g-C3N4 microwire (MW(III)) photocatalysts significantly enhanced hydrogen production under solar irradiation (16.88 μmol h−1). The performances of photocatalysts fabricated from the same precursor via calcification improved with the increase in the crystallinity and the degree of polymerization. The use of different precursors led to variations in crystallinity, but H2 production was correlated with the crystallinity of the photocatalysts synthesized from the same precursor with a similar trend. This study provides a novel strategy to synthesize metal-free g-C3N4 photocatalysts via increasing the crystallinity and degree of polymerization.

Graphical abstract: A facile approach to synthesize graphitic carbon nitride microwires for enhanced photocatalytic H2 evolution from water splitting under full solar spectrum

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Publication details

The article was received on 04 May 2018, accepted on 19 Jun 2018 and first published on 20 Jun 2018


Article type: Paper
DOI: 10.1039/C8CY00904J
Catal. Sci. Technol., 2018,8, 3599-3609

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    A facile approach to synthesize graphitic carbon nitride microwires for enhanced photocatalytic H2 evolution from water splitting under full solar spectrum

    H. Dou, D. Long, S. Zheng and Y. Zhang, Catal. Sci. Technol., 2018, 8, 3599
    DOI: 10.1039/C8CY00904J

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