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Issue 2, 2017
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n/n junctioned g-C3N4 for enhanced photocatalytic H2 generation

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Graphitic carbon nitride (g-C3N4) has been deemed as a promising metal-free catalyst for solar energy utilization toward water splitting. In the present work, homogeneous n/n junctioned g-C3N4/g-C3N4 is prepared by in situ annealing of two different precursors and its photocatalytic activity is studied for hydrogen generation. It exhibits a superior photocatalytic performance over its individual pure g-C3N4 moieties. The enhanced photocatalytic activity is explained by the synergistic effects between the two g-C3N4 in the homogeneous nanostructures, where a better charge separation is achieved in the homogeneous g-C3N4/g-C3N4 with many n/n junctions. Previously, synergistic effects were reported in the heterostructures of different materials or different phases. This study thus broadens the meaning of synergistic effects and demonstrates that synergistic effects can be obtained using the same materials of the same phase but made by different methods. Therefore, this finding is of general interest to the materials, chemistry, and renewable energy communities and will trigger a wide attention in the related research fields.

Graphical abstract: n/n junctioned g-C3N4 for enhanced photocatalytic H2 generation

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Publication details

The article was received on 13 Oct 2016, accepted on 15 Nov 2016 and first published on 09 Jan 2017

Article type: Paper
DOI: 10.1039/C6SE00004E
Citation: Sustainable Energy Fuels, 2017,1, 317-323
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    n/n junctioned g-C3N4 for enhanced photocatalytic H2 generation

    M. Zhou, Z. Hou, L. Zhang, Y. Liu, Q. Gao and X. Chen, Sustainable Energy Fuels, 2017, 1, 317
    DOI: 10.1039/C6SE00004E

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