Enhanced photosensitization process induced by the p-n junction of Bi2O2CO3/BiOCl heterojunctions on the degradation of rhodamine B

Herein, we report the enhanced photosensitization process in the nanosheet Bi2O2CO3/BiOCl heterojunctions photocatalyst. The combined XRD, FT-IR and Raman results have confirmed the co-existence of Bi2O2CO3 and BiOCl phases in the composites. Although both Bi2O2CO3 and BiOCl are wide bandgap semicon...

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Bibliographic Details
Published inApplied surface science Vol. 303; pp. 360 - 366
Main Authors Lu, Haijing, Xu, Lingling, Wei, Bo, Zhang, Mingyi, Gao, Hong, Sun, Wenjun
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier 01.06.2014
Subjects
Catalytic activity
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Heterojunctions
Light irradiation
P-n junctions
Phases
Photocatalysis
Photocatalysts
Physics
Rhodamine
Heterojunctions
Photosensitization
p n junctions
Photocatalysis
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Summary:Herein, we report the enhanced photosensitization process in the nanosheet Bi2O2CO3/BiOCl heterojunctions photocatalyst. The combined XRD, FT-IR and Raman results have confirmed the co-existence of Bi2O2CO3 and BiOCl phases in the composites. Although both Bi2O2CO3 and BiOCl are wide bandgap semiconductors, the composites showed an unexpectedly high catalytic activity in decomposing RhB (rhodamine B) aqueous solution under visible light irradiation. The mechanism of enhanced photocatalytic activity was ascribed to the inner electric field formed in the Bi2O2CO3/BiOCl p-n junction.
Bibliography:ObjectType-Article-1
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ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2014.03.006