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“Two channel” photocatalytic hydrogen peroxide production using g-C3N4 coated CuO nanorods heterojunction catalysts prepared via a novel molten salt-assisted microwave process

Abstract

Photocatalytic H2O2 production has received increasing attention as a sustainable and eco-friendly method to replace conventional anthraquinone-based and electrochemical production processes. In this work, we report a novel molten salt-assisted microwave process to synthesize g-C3N4 coated CuO nanorods heterojunction photocatalyst with outstanding H2O2 production ability. XRD, UV-Vis, N2 adsorption, SEM, TEM, XPS, EIS and PL were used to characterize the obtained catalysts. CN@CuO(4) with the largest area of heterojunction displays the highest photocatalytic H2O2 production ability of 6.9 mmol•L-1, which is 7.4 and 16.4 times higher than that of individual g-C3N4 and CuO. “Two channel pathway” is proposed for this reaction system which causes the remarkably promoted H2O2 production ability. In addition, compared with traditional polycondensation method, the catalyst prepared via molten salt-assisted microwave process exhibits larger area of heterojunction and more effective separation rate, causing the higher photocatalytic H2O2 production ability and stability.

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Publication details

The article was received on 24 May 2018, accepted on 09 Jul 2018 and first published on 10 Jul 2018


Article type: Paper
DOI: 10.1039/C8NJ02565G
Citation: New J. Chem., 2018, Accepted Manuscript
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    “Two channel” photocatalytic hydrogen peroxide production using g-C3N4 coated CuO nanorods heterojunction catalysts prepared via a novel molten salt-assisted microwave process

    S. Hu, J. bai, Y. sun, M. Li, L. yang and J. Li, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ02565G

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