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http://dx.doi.org/10.12772/TSE.2012.49.6.377

Antimicrobial Properties of PET/(Nano-TiO2) Composite Films Prepared by Photocatalytic Deposition of Silver  

Jo, Seong-Min (Department of Materials Design Engineering, Kumoh National Institute of Technology)
Jhee, Kwang Hwan (Department of Applied Chemistry, Kumoh National Institute of Technology)
Kim, Jung Hyun (Department of Applied Chemistry, Kumoh National Institute of Technology)
Kwon, Oh Kyung (B.S.G. Co.)
Lim, Sang Kyoo (Daegu Gyeongbuk Institute of Science and Technology)
Min, Byung Gil (Department of Materials Design Engineering, Kumoh National Institute of Technology)
Publication Information
Textile Science and Engineering / v.49, no.6, 2012 , pp. 377-382 More about this Journal
Abstract
Nanocomposite films of poly(ethylene terephthalate)(PET) and nano titania($TiO_2$) were prepared by melt compounding with a twin-screw extruder followed by hot pressing for the purpose of investigating antibacterial activity. FE-SEM, EDS and XRD measurements confirmed that nano $TiO_2$ was successfully dispersed at the level of individual particles in the PET matrix. Silver was introduced through photocatalytic reduction by nano $TiO_2$ under UV (254 nm) irradiation to the nanocomposite films after being immersed in aqueous solution $AgNO_3$ (100 ppm Ag ion). Even at 1 wt% of $TiO_2$ content, the nanocomposite with silver photodeposition exhibited strong antimicrobial activity against Klebsiella pneumoniae and Staphylococcus aureus in measurement by shaking flask method.
Keywords
PET; nano $TiO_2$; photodeposition by UV irradition; silver; antibacterial activity;
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Times Cited By KSCI : 1  (Citation Analysis)
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