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Issue 3, 2020
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A general steam-assisted method for one-step synthesis of polymeric carbon nitride nanosheets with/without doping for efficient photocatalytic hydrogen evolution

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Abstract

Nano-structuring of polymeric carbon nitride (PCN) is an important strategy to improve its photocatalytic performance, while facile and green methods are scarce yet. Herein, we proposed a novel steam-assisted method to prepare holey PCN nanosheets in one step. Only a green gas template, i.e. steam, decomposed from the recyclable steam source Mg(OH)2 is needed for PCN nano-structuring. Moreover, in situ element doping of nano-structured PCN can be synchronously realized via this method. The holey PCN nanosheets and doped counterparts have boosted visible-light photocatalytic H2 evolution activities 12–35 times that of bulk PCN, benefitting from enlarged specific surface area, suppressed photogenerated electron–hole recombination and prolonged charge carrier lifetime. Steam-assisting may be a useful strategy for the facile and green synthesis of other nanosized PCN materials.

Graphical abstract: A general steam-assisted method for one-step synthesis of polymeric carbon nitride nanosheets with/without doping for efficient photocatalytic hydrogen evolution

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Article information


Submitted
31 Oct 2019
Accepted
19 Dec 2019
First published
19 Dec 2019

Nanoscale, 2020,12, 1939-1947
Article type
Paper

A general steam-assisted method for one-step synthesis of polymeric carbon nitride nanosheets with/without doping for efficient photocatalytic hydrogen evolution

Z. Shu, Y. Tan, J. Zhou, T. Li, J. Chen, D. Chen, W. Wang, Z. Zhao and X. Hu, Nanoscale, 2020, 12, 1939
DOI: 10.1039/C9NR09287K

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