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Green synthesis of ultrathin edge-activated foam-like carbon nitride nanosheets for enhanced photocatalytic performance under visible light irradiation

Abstract

Fabrication of few-layered polymeric carbon nitride (PCN) photocatalyst has attracted increasing attention due to its substantial enhancement of the photocatalytic performance. A green strategy for synthesis of ultrathin PCN nanosheets with integration of high-efficiency and enriched active edges with minimizing chemicals and energy input is overwhelmingly required and still challenging. Herein, we report a green, cost-effective and template-free synthesis approach for ultrathin foam-like PCN nanosheets with enriched active sites in wet atmosphere via “three-in-one” strategy. This strategy relies on coupling of melem segments polymerization with condensed layers delamination by water molecules and introducing of new termial groups solely in one-pot without any other additives. The obtained melem-derived PCN (MFCN-wet) shows high loosen and extremely light characteristic with formation of ultrathin few-layers. Furthermore, it exhibits high specific surface area and pore volume. Most importantly, enrich active sites with fast charge carrier transfer drastically enhance the hydrogen evolution rate and rhodamine B (RhB) degradation with high stability under visible light irradiation compared with that as-synthesized materials in nitrogen and air atmosphere. Such a sustanaible strategy would pave new opportunities for further environmental and energy applications.

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Supplementary files

Publication details

The article was accepted on 06 May 2019 and first published on 14 May 2019


Article type: Paper
DOI: 10.1039/C9SE00263D
Sustainable Energy Fuels, 2019, Accepted Manuscript

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    Green synthesis of ultrathin edge-activated foam-like carbon nitride nanosheets for enhanced photocatalytic performance under visible light irradiation

    I. A. Abdelhafeez, Q. Yao, C. Wang, Y. Su, X. Zhou and Y. Zhang, Sustainable Energy Fuels, 2019, Accepted Manuscript , DOI: 10.1039/C9SE00263D

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