All-Solid Z-Scheme Bi–BiOCl/AgCl Heterojunction Microspheres for Improved Electron–Hole Separation and Enhanced Visible Light-Driven Photocatalytic Performance

  • Meng Du
    Meng Du
    Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China, Heilongjiang University, Harbin 150080, P. R. China
    More by Meng Du
  • Shiyu Zhang
    Shiyu Zhang
    Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China, Heilongjiang University, Harbin 150080, P. R. China
    More by Shiyu Zhang
  • Zipeng Xing*
    Zipeng Xing
    Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China, Heilongjiang University, Harbin 150080, P. R. China
    *E-mail: [email protected]. Phone: +86-451-8660-8616. Fax: +86-451-8660-8240 (Z.X.).
    More by Zipeng Xing
  • Zhenzi Li
    Zhenzi Li
    Department of Epidemiology and Biostatistics, Harbin Medical University, Harbin 150086, P. R. China
    More by Zhenzi Li
  • Junwei Yin
    Junwei Yin
    Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China, Heilongjiang University, Harbin 150080, P. R. China
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  • Jinlong Zou
    Jinlong Zou
    Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China, Heilongjiang University, Harbin 150080, P. R. China
    More by Jinlong Zou
  • Qi Zhu*
    Qi Zhu
    Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China, Heilongjiang University, Harbin 150080, P. R. China
    *E-mail: [email protected] (Q.Z.).
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  • , and 
  • Wei Zhou*
    Wei Zhou
    Department of Environmental Science, School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China, Heilongjiang University, Harbin 150080, P. R. China
    *E-mail: [email protected] (W.Z.).
    More by Wei Zhou
Cite this: Langmuir 2019, 35, 24, 7887–7895
Publication Date (Web):June 5, 2019
https://doi.org/10.1021/acs.langmuir.9b00581
Copyright © 2019 American Chemical Society
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Abstract

All-solid Z-scheme Bi–BiOCl/AgCl heterojunction microspheres are successfully prepared via hydrothermal, NaBH4 reduction and chemical deposition strategy. They are tested by various characterization methods, and they show that metal Bi is present after reduction and AgCl nanoparticles are successfully compounded onto BiOCl. Bi plays the role of a bridge connecting the two semiconductors of BiOCl and AgCl. All-solid Z-scheme heterojunction structures are formed successfully. The narrow band gap of the Z-scheme Bi–BiOCl/AgCl heterojunction microspheres is about 2.17 eV, which can expand the optical response range. Moreover, the photocatalytic hydrogen production rate still reaches 198.2 μmol h–1 g–1, extends the electron transport life, inhibits the recombination of electron hole pairs, and improves the photocatalytic activity.

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The Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/acs.langmuir.9b00581.

  • SEM images; elemental mapping; removal rate; BJH pore-size distribution plots; BET surface areas, pore sizes, and pore volumes; variations of ln(C/C0); Mott-Schottky plots; full-scale XPS; and XRD patterns (PDF)

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