Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 452, Issue -, Pages 148-154Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2013.02.056
Keywords
MWCNTs; ZnO; Disinfection; Antimicrobial activity; Bactericidal ability; E. coli
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Funding
- Natural Science Foundation of China [50708067, 51078281]
- Foundation for the Author of the National Excellent Doctoral Dissertation of China [2007B48]
- National Technique Special Project [2012ZX07408001]
- Fundamental Research Funds for the Central Universities [0400219192]
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ZnO coated multi-walled carbon nanotubes (ZnO/MWCNTs) were prepared and evaluated for their application potentials as an antimicrobial material for simultaneous concentrating and inactivating pathogenic bacteria. X-ray energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM), and X-ray photoelectron spectra (XPS) were used to characterize the ZnO/MWCNTs. Escherichia coli (E. coli) was employed as the target bacterium. Comparing with the raw and the purified MWCNTs (r-MWCNTs and p-MWCNTs), which have been reported to possess antibacterial activity towards E. coli, ZnO/MWCNTs exhibited stronger antibacterial ability. The deposited ZnO was suggested to play an important role in the bactericidal action of ZnO/MWCNTs, while, the r-MWCNTs and p-MWCNTs served as more like adsorbing materials for E. coli. (C) 2013 Elsevier B.V. All rights reserved.
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