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Journal of Materials Science

, Volume 44, Issue 7, pp 1894–1901 | Cite as

Bactericidal functionalization of wrinkle-free fabrics via covalently bonding TiO2@Ag nanoconjugates

  • C. Yang
  • G. L. Liang
  • K. M. Xu
  • P. GaoEmail author
  • B. Xu
Article

Abstract

A simple technique is first developed to functionalize the durable-press all-cotton fabrics by grafting silver anchored TiO2 (P25) nanoconjugates through enediol ligand-metal oxide bonding and resin dehydration. The functionalization is incorporated into a conventional pad-dry-cure process. The treatment ensures the nanoconjugates are covalently bonded to the substrate fabric materials (cotton cellulose). We tested the bactericidal activity of these surface-modified fabric samples after repeated laundries, using the waterborne Escherichia coli bacteria. Strong inhibition results were observed on the TiO2@Ag treated samples than using bare TiO2 alone. After 60 min of sunlight irradiation, the overall bactericidal efficiency reached 96% after 7.5 h culturing. After 60 min of artificial solar light irradiation, the overall bactericidal efficiency reached 99%. Our observations suggest that the enediol linkage can be an effective candidate to graft functional metal oxide nanoconjugates onto a variety of fabric surfaces via a conventional pad-dry-cure process.

Keywords

TiO2 Silver Nanoparticles Cotton Fabric Fabric Sample TiO2 Nanoparticles 

Notes

Acknowledgement

This research was supported by ITF, grant no. UIM109 (The Hong Kong University of Science and Technology).

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • C. Yang
    • 1
  • G. L. Liang
    • 1
  • K. M. Xu
    • 2
  • P. Gao
    • 2
    Email author
  • B. Xu
    • 1
  1. 1.Department of ChemistryThe Hong Kong University of Science and TechnologyHong KongChina
  2. 2.Department of Chemical EngineeringThe Hong Kong University of Science and TechnologyHong KongChina

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