JOURNAL OF TEXTILE RESEARCH ›› 2017, Vol. 38 ›› Issue (06): 163-168.doi: 10.13475/j.fzxb.20170201007

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Preparation ana durable antibacterial fabric loaded with doped nano-TiO2

  

  • Received:2017-02-09 Revised:2017-03-03 Online:2017-06-15 Published:2017-06-16

Abstract:

To solve the durability antibacterial problem on special military supplies and medical textile fabric under visible light irradiation, by using tetrabutyl titanate as the Ti source, thiourea and urea as the dopant, and cotton knitted fabric as the base materials, visible light catalytic durability antibacterial cotton knitted fabric loaded with S-N codoped nano-TiO2 (S-N-TiO2) was prepared by fast sol-gel loading in combination with low temperature treatment. The light absorption propertes and microstructure of the prepared samples were characterized by UV-Vis spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscopy. Using Escherichia coli and Staphylococcus aureus as target object, the visible light catalytic antibacterial properties of the fabric were investigated by shake flask method. The results indicate that sulfur and nitrogen atoms are incorporated into the TiO2 lattice as substitutional and interstitial forms, which allowed light absorption band edge redshift into the visible light region and the absorption intensity was increased. The dense film of S-N-TiO2 is coated on the surface of the fabric samples. The antibacterial rates of all the samples for Staphylococcus aureus are superior to the AAA standard, for Escherichia coli are superior to the AA standard.

Key words: co-diped TiO2, visible light irradiation, cotton knitted fabric, durability, antibacterial property

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