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Issue 2, 2013
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Synthesis of visible light-active CeO2 sheets via mussel-inspired CaCO3 mineralization

Jong Wan Ko,a  Jae Hong Kima  and  Chan Beum Park*a 
Author affiliations

* Corresponding authors

a Department of Materials Science and Engineering, KAIST, Science Road 335, Yuseong-gu, Daejeon 305-701, Republic of Korea
E-mail: parkcb@kaist.ac.kr
Fax: +82 42 350 3310
Tel: +82 42 350 3340

Abstract

Visible light-active, nano-grained CeO2 sheets are successfully synthesized using polydopamine-induced CaCO3 vaterite microspheres. The nano-grained CeO2 sheets exhibited a distinct polycrystalline sheet-like structure with grains, with a red-shift in the UV-visible absorption spectrum and a much narrower bandgap (2.71–2.83 eV). Visible light-responsive photocatalytic activity was observed with nano-grained CeO2 sheets at a rate constant that was much higher than that of CeO2 nanoparticles.

Graphical abstract: Synthesis of visible light-active CeO2 sheets via mussel-inspired CaCO3 mineralization

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Publication details

The article was received on 13 Sep 2012, accepted on 29 Oct 2012 and first published on 30 Oct 2012


Article type: Communication
DOI: 10.1039/C2TA00782G
Citation: J. Mater. Chem. A, 2013,1, 241-245
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    Synthesis of visible light-active CeO2 sheets via mussel-inspired CaCO3 mineralization

    J. W. Ko, J. H. Kim and C. B. Park, J. Mater. Chem. A, 2013, 1, 241
    DOI: 10.1039/C2TA00782G

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