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Issue 15, 2018
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New two-dimensional porous graphitic carbon nitride nanosheets for highly efficient photocatalytic hydrogen evolution under visible-light irradiation

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Abstract

Aiming at tedious preparation procedures for 2D porous graphitic carbon nitride (2DPCN) nanosheets, a one-step thermal polymerization method based on a supramolecular precursor has been developed. As-prepared 2DPCNs exhibit enlarged specific surface areas with rich reaction sites, better crystallinity, stronger visible-light harvesting capability, aligned energy levels and faster charge transfer. A superior photocatalytic hydrogen evolution rate of 220 μmol h−1 under visible-light (λ > 420 nm) irradiation, has been achieved. In the meantime, an apparent quantum yield of 1.3% at 490 nm is also obtained, indicating that 2DPCN possesses green light activity. Our one-step thermal polymerization method based on a supramolecular precursor provides a new way to develop C3N4 photocatalysts with different morphologies and better photoelectric properties.

Graphical abstract: New two-dimensional porous graphitic carbon nitride nanosheets for highly efficient photocatalytic hydrogen evolution under visible-light irradiation

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Publication details

The article was received on 14 May 2018, accepted on 22 Jun 2018 and first published on 28 Jun 2018


Article type: Paper
DOI: 10.1039/C8CY00970H
Citation: Catal. Sci. Technol., 2018,8, 3846-3852
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    New two-dimensional porous graphitic carbon nitride nanosheets for highly efficient photocatalytic hydrogen evolution under visible-light irradiation

    L. Zhang, N. Ding, J. Wu, K. Iwasaki, L. Lin, Y. Yamaguchi, Y. Shibayama, J. Shi, H. Wu, Y. Luo, K. Nakata, D. Li, X. Wang, A. Fujishima and Q. Meng, Catal. Sci. Technol., 2018, 8, 3846
    DOI: 10.1039/C8CY00970H

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