Reducing photoyellowing of wool fabrics with silica coated ZnO nanoparticles

Zhang,M, Tang,B, Sun,L and Wang,X 2014, Reducing photoyellowing of wool fabrics with silica coated ZnO nanoparticles, Textile Research Journal, vol. 84, no. 17, pp. 1840-1848, doi: 10.1177/0040517514530028.

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Title Reducing photoyellowing of wool fabrics with silica coated ZnO nanoparticles
Author(s) Zhang,M
Tang,BORCID iD for Tang,B
Sun,LORCID iD for Sun,L
Wang,XORCID iD for Wang,X
Journal name Textile Research Journal
Volume number 84
Issue number 17
Start page 1840
End page 1848
Total pages 9
Publisher Sage Publications
Place of publication London, United Kingdom
Publication date 2014-10-01
ISSN 0040-5175
Keyword(s) photocatalysis
silica coating
UV absorber
ZnO nanoparticles
Science & Technology
Materials Science, Textiles
Materials Science
Summary Though ZnO nanoparticles (NPs) are an excellent UV absorber, their photocatalytic activity greatly limits the application areas of these particles. Under sunlight exposure, ZnO NPs used as a UV absorber can accelerate the wool yellowing process by generating free radicals. To reduce this photocatalysis effect, a physical barrier has been fabricated by coating the ZnO NPs with a silica layer (ZnO@SiO2), hence providing good UV-shielding with low photocatalytic activity. The structure and optical properties of ZnO and ZnO@SiO2 NPs were characterized by transmission electron microscope (TEM) and UV–Vis spectrum. The photocatalytic activity of ZnO and ZnO@SiO2 NPs was evaluated by photo-degradation of Rhodamine B. The ZnO and ZnO@SiO2 NPs were applied to knitted wool fabrics using the dip coating method. The treated wool fabrics were characterized by a scanning electron microscope (SEM) and the photoyellowing level of treated fabrics after exposure under simulated sunlight was evaluated by a Datacolor Spectraflash spectrophotometer. The ZnO@SiO2 NPs demonstrated excellent protection of wool against photoyellowing.
Language eng
DOI 10.1177/0040517514530028
Field of Research 091205 Functional Materials
100708 Nanomaterials
Socio Economic Objective 860403 Natural Fibres
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, SAGE Publications
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Document type: Journal Article
Collections: Institute for Frontier Materials
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