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Issue 16, 2018
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“Two channel” photocatalytic hydrogen peroxide production using g-C3N4 coated CuO nanorod heterojunction catalysts prepared via a novel molten salt-assisted microwave process

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Abstract

Photocatalytic H2O2 production has gained 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 nanorod heterojunction photocatalysts 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 heterojunction area 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. A “two channel pathway” is proposed for this reaction system which causes the remarkably promoted H2O2 production ability. In addition, compared with a traditional polycondensation method, the catalyst prepared via a molten salt-assisted microwave process exhibits a larger heterojunction area and more effective separation rate, causing higher photocatalytic H2O2 production ability and stability.

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

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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., 2018,42, 13529-13535
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    “Two channel” photocatalytic hydrogen peroxide production using g-C3N4 coated CuO nanorod heterojunction catalysts prepared via a novel molten salt-assisted microwave process

    J. Bai, Y. Sun, M. Li, L. Yang, J. Li and S. Hu, New J. Chem., 2018, 42, 13529
    DOI: 10.1039/C8NJ02565G

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