Self-cleaning cotton functionalized with TiO2/SiO2 : Focus on the role of silica
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Pages (from-to) | 1-7 |
Journal / Publication | Journal of Colloid and Interface Science |
Volume | 401 |
Publication status | Published - 1 Jul 2013 |
Link(s)
Abstract
This manuscript aims to investigate the functionalization of cotton fabrics with TiO2/SiO2. In this study, the sol-gel method was employed to prepare titania and silica sols and the functionalization was carried out using the dip-pad-dry-cure process. Titanium tetra isopropoxide (TTIP) and tetra ethyl orthosilicate (TEOS) were utilized as precursors of TiO2 and SiO2, respectively. TiO2/SiO2 composite sols were prepared in three different Ti:Si molar ratios of 1:0.43, 1:1, and 1:2.33. The self-cleaning property of cotton samples functionalized with TiO2/SiO2 was assessed based on the coffee stain removal capability and the decomposition rate of methylene blue under UV irradiation. FTIR study of the TiO2/SiO2 photocatalyst confirmed the existence of Si-O-Si and Ti-O-Si bonds. Scanning electron microscopy was employed to investigate the morphology of the functionalized cotton samples. The samples coated with TiO2/SiO2 showed greater ability of coffee stain removal and methylene blue degradation compared with samples functionalized with TiO2 demonstrating improved self-cleaning properties. The role of SiO2 in improving these properties is also discussed. © 2013 Elsevier Inc.
Research Area(s)
- Composites, Cotton, Functionalization, Photocatalysis, Sol-gel
Citation Format(s)
Self-cleaning cotton functionalized with TiO2/SiO2: Focus on the role of silica. / Pakdel, Esfandiar; Daoud, Walid A.
In: Journal of Colloid and Interface Science, Vol. 401, 01.07.2013, p. 1-7.
In: Journal of Colloid and Interface Science, Vol. 401, 01.07.2013, p. 1-7.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review