Synthesis of Ag/TiO 2 Core/Shell Nanoparticles with Antibacterial Properties

Monodispersed Ag/$TiO_2$ core/shell nanoparticles were synthesized in solution via colloid-seeded deposition process using Ag nanoparticles as colloid seeds and $Ti(SO_4)_2$ as Ti-source respectively. Silver nitrate was reduced to Ag nanoparticles with $N_2H_4{\cdot}H_2O$ in the presence of CTAB as...

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Bibliographic Details
Published inBulletin of the Korean Chemical Society Vol. 32; no. 8; pp. 2607 - 2610
Main Authors Lin, Yue, Qiqiang, Wang, Xiaoming, Zhang, Zhouping, Wang, Wenshui, Xia, Yuming, Dong
Format Journal Article
LanguageKorean
Published 2011
Subjects
Spectroscopy
Nanocomposites
X-ray techniques
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Summary:Monodispersed Ag/$TiO_2$ core/shell nanoparticles were synthesized in solution via colloid-seeded deposition process using Ag nanoparticles as colloid seeds and $Ti(SO_4)_2$ as Ti-source respectively. Silver nitrate was reduced to Ag nanoparticles with $N_2H_4{\cdot}H_2O$ in the presence of CTAB as stabilizing agent. The titania sols hydrolyzed by the $Ti(SO_4)_2$ solution deposited on the surface of Ag nanoparticles to form the Ag/$TiO_2$ core/shell nanoparticles. Inductively coupled plasma atomic emission spectrometry (ICP-AES) showed low amount of Ag ion leaching from the Ag/$TiO_2$ core/shell nanoparticles. The Ag/$TiO_2$ core/shell nanoparticles indicated excellent antibacterial effects against Escherichia coli and maintained long-term antibacterial property.
Bibliography:KISTI1.1003/JNL.JAKO201129460143785
ISSN:0253-2964
1229-5949