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Combining iodic acid and nitric acid to fabricate carbon nitride tubes for enhanced hydrogen evolution under visible light

Abstract

This work presents a facile approach for preparing porous graphitic carbon nitride tube with cyano groups and carbon vacancies (I/N-CN) though thermal polymerization of the pre-assembled melamine–cyanuric acid supramolecules from melamine by a mixed iodic acid/nitric acid assisted hydrothermal process. I/N-CN demonstartes 3.64 times higher visible-light-driven hydrogen evolution rate (9.75 μmol h-1) than the traditional tubular carbon nitride (HCN) prepared without iodic acid or nitric acid, originating from the promoted light absorption extending to the near-infrared region, accelerated electron transfer, inhibited recombination of charge carriers, higher reduction capability, more accessible active sites from the combination of porous tubular structure and enriched cyano groups and carbon vacancies.

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Publication details

The article was received on 27 Sep 2018, accepted on 04 Dec 2018 and first published on 04 Dec 2018


Article type: Communication
DOI: 10.1039/C8CY02006J
Citation: Catal. Sci. Technol., 2019, Accepted Manuscript
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    Combining iodic acid and nitric acid to fabricate carbon nitride tubes for enhanced hydrogen evolution under visible light

    G. Ge and Z. Zhao, Catal. Sci. Technol., 2019, Accepted Manuscript , DOI: 10.1039/C8CY02006J

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