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Issue 12, 2011
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Hierarchical Bi2O2CO3 microspheres with improved visible-light-driven photocatalytic activity

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Abstract

A high-efficiency Bi2O2CO3 photocatalyst was successfully synthesized using tri-sodium citrate as both the coordinating agent and carbon source through a hydrothermal process. Morphology modulation of the obtained products could be easily realized by tuning the concentration of tri-sodium citrate in sponge-like, rose-like and plate-like shapes. The as-prepared sponge-like Bi2O2CO3 microspheres, owning a narrowed band gap of 2.87 eV and a higher BET surface area of 43.99 m2 gāˆ’1, exhibit powerful visible-light-photocatalytic activity for the degradation of dyes under 300 W Xe lamp light irradiation. It is worthy to note that the optimal sponge-like Bi2O2CO3 microspheres also possess superior photocatalytic ability under natural sunlight.

Graphical abstract: Hierarchical Bi2O2CO3 microspheres with improved visible-light-driven photocatalytic activity

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Publication details

The article was received on 21 Jan 2011, accepted on 18 Mar 2011 and first published on 13 Apr 2011


Article type: Paper
DOI: 10.1039/C1CE05113J
Citation: CrystEngComm, 2011,13, 4010-4017
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    Hierarchical Bi2O2CO3 microspheres with improved visible-light-driven photocatalytic activity

    T. Zhao, J. Zai, M. Xu, Q. Zou, Y. Su, K. Wang and X. Qian, CrystEngComm, 2011, 13, 4010
    DOI: 10.1039/C1CE05113J

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