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Photostability of wool fabrics coated with pure and modified TiO2 colloids

Pakdel, Esfandiar, Daoud, Walid A., Sun, Lu and Wang, Xungai 2015, Photostability of wool fabrics coated with pure and modified TiO2 colloids, Journal of colloid and interface science, vol. 440, pp. 299-309, doi: 10.1016/j.jcis.2014.10.032.

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Title Photostability of wool fabrics coated with pure and modified TiO2 colloids
Author(s) Pakdel, Esfandiar
Daoud, Walid A.
Sun, Lu
Wang, Xungai
Journal name Journal of colloid and interface science
Volume number 440
Start page 299
End page 309
Total pages 11
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015
ISSN 1095-7103
Keyword(s) Nanocomposite
Photo-induced chemiluminescence (PICL)
Photodegradation
Sol–gel
Titanium dioxide (TiO(2))
Sol-gel
Titanium dioxide (TiO2)
Science & Technology
Physical Sciences
Chemistry, Physical
Chemistry
NANO TITANIUM-DIOXIDE
SELF-CLEANING COTTON
PHOTOINDUCED CHEMILUMINESCENCE
PHOTOCATALYTIC ACTIVITY
PROTEIN FIBERS
VISIBLE-LIGHT
UV
MECHANISMS
TEXTILES
Summary The surface of wool fabrics was coated with TiO2 and TiO2-based nanocomposite colloids and the impact of this coating on the photostability of wool was investigated. TiO2 along with TiO2/Metal and TiO2/Metal/SiO2 sols were synthesized through a low-temperature sol-gel method and applied to fabrics. Composite colloids were synthesized through integrating the silica and three noble metals of silver (Ag), gold (Au) and platinum (Pt) into the synthesis process of sols. Four different molar ratios of Metal to TiO2 (0.01%, 0.1%, 0.5% and 1%) were used to elucidate the role of metal type and amount on the obtained features. Photostability and UV protection features of fabrics were evaluated through measuring the photo-induced chemiluminescence (PICL), photoyellowing rate and ultraviolet protection factor (UPF) of fabrics. PICL and photoyellowing tests were carried out under UVA and UVC light sources, respectively. PICL profiles demonstrated that the presence of pure and modified TiO2 nanoparticles on fabrics reduced the intensity of PICL peak indicating a lower amount of polymer free radicals in coated wool, compared to that of pristine fabric. Moreover, a higher PICL peak intensity as well as photoyellowing rate was observed on fabrics coated with modified colloids in comparison with pure TiO2. The surface morphology of fabrics was further characterized using FESEM images.
Language eng
DOI 10.1016/j.jcis.2014.10.032
Field of Research 100708 Nanomaterials
091205 Functional Materials
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
Related work DU:30077510
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30070110

Document type: Journal Article
Collection: Institute for Frontier Materials
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