Journal
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
Volume 379, Issue -, Pages 112-116Publisher
ELSEVIER
DOI: 10.1016/j.molcata.2013.08.002
Keywords
Au-Bi2CuO4 nanoparticles; Ceftiofur sodium; Photocatalytic degradation; Visible light
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Funding
- CSIR, India [02(0021)/11/EMR-II]
- National Science Council (NSC) in Taiwan [NSC-102-2923-E-035-001-MY3]
- Department of Science & Technology (DST) in India [NSC-102-2923-E-035-001-MY3]
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The Bi2CuO4 nanoparticles were prepared for the first time by ultrasound-assisted method, modified with gold (Au) nanoparticles, and characterized through TEM, EDAX, and XPS analyses. The photocatalytic performance of Au-Bi2CuO4 nanoparticles was investigated under visible light illumination to degrade a pharmaceutical pollutant, ceftiofur sodium (CFS). The Au-Bi2CuO4 nanoparticles own superior photocatalytic activities when compared to pristine Bi2CuO4 nanoparticles. The Au nanoparticles play a crucial role in the separation of photogenerated charge carriers and as a consequence Au-Bi2CuO4 nanoparticles can produce more hydroxyl radicals, which have been quantitatively identified by conducting fluorescence experiments with terephthalic acid as a probe molecule. (C) 2013 Elsevier B.V. All rights reserved.
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