Preparation of CuaAg core-shell particles with their anti-oxidation and antibacterial properties

CuaAg core-shell particles were fabricated from Cu particles and silver sulphate with the environmental-friendly TA (tartaric acid, C4H6O6) as reducing and chelating agent in an aqueous system. The influences of [TA]/[Ag] and [Ag]/[Cu] molar ratios on the formation of Ag coatings on the Cu particles...

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Published inCurrent applied physics Vol. 13; no. 7; pp. 1496 - 1501
Main Authors Chen, Kuan-ting, Ray, Dahtong, Peng, Yu-hsien, Hsu, Yu-Chi
Format Journal Article
LanguageEnglish
Published 01.09.2013
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Summary:CuaAg core-shell particles were fabricated from Cu particles and silver sulphate with the environmental-friendly TA (tartaric acid, C4H6O6) as reducing and chelating agent in an aqueous system. The influences of [TA]/[Ag] and [Ag]/[Cu] molar ratios on the formation of Ag coatings on the Cu particles were investigated. The SEM images and SEMaEDS analyses showed that [TA]/[Ag] = 0.5 and [Ag]/[Cu] aY0.2, the Cu particles were coated with uniform Ag nanoparticles. XRD analyses revealed that for these CuaAg particles heated at 250 degree C, the oxidation of Cu was significantly reduced. Both anti-Staphylococcus aureus (Gram-positive) and anti-Escherichia coli (Gram-negative) characteristics of this CuaAg composite particles showed satisfactory antibacterial ability. The characteristics of the composite CuaAg particles were discussed in detail.
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ISSN:1567-1739
DOI:10.1016/j.cap.2013.05.003