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Issue 1, 2019
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Fabrication of a full-spectrum-response Cu2(OH)2CO3/g-C3N4 heterojunction catalyst with outstanding photocatalytic H2O2 production performance via a self-sacrificial method

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Abstract

Over the past few decades, near infrared light (NIR), as an important part of sunlight, has seldom been utilized in photocatalytic reactions. In this work, a full-spectrum-response Cu2(OH)2CO3/g-C3N4 photocatalyst with outstanding photocatalytic H2O2 production performance was synthesized. XRD, UV-Vis, N2 adsorption, XPS, PL, EIS and EPR are used to characterize the as-prepared catalysts. As a light absorber from UV to NIR, Cu2(OH)2CO3 can form more photogenerated electrons to recombine the holes in g-C3N4 through the “Z-scheme” mechanism. The as-prepared Cu2(OH)2CO3/g-C3N4 photocatalyst shows the H2O2 equilibrium concentration of 8.9 mmol L−1, over 16 and 26.9 times higher than that of neat g-C3N4 and Cu2(OH)2CO3. According to the Z-scheme mechanism, a “two channel route” to form H2O2 is proposed for the Cu2(OH)2CO3/g-C3N4 heterojunction catalyst.

Graphical abstract: Fabrication of a full-spectrum-response Cu2(OH)2CO3/g-C3N4 heterojunction catalyst with outstanding photocatalytic H2O2 production performance via a self-sacrificial method

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Publication details

The article was received on 11 Oct 2018, accepted on 19 Nov 2018 and first published on 20 Nov 2018


Article type: Paper
DOI: 10.1039/C8DT04081H
Citation: Dalton Trans., 2019,48, 182-189
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    Fabrication of a full-spectrum-response Cu2(OH)2CO3/g-C3N4 heterojunction catalyst with outstanding photocatalytic H2O2 production performance via a self-sacrificial method

    Z. Li, N. Xiong and G. Gu, Dalton Trans., 2019, 48, 182
    DOI: 10.1039/C8DT04081H

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