Abstract
In order to inhibit the photocatalytic degradation of organic material supports induced by small titania (TiO2) nanoparticles, highly photocatalytically active, commercially available P25-TiO2 nanoparticles were first modified with a thin layer of (3-aminopropyl) triethoxysilane (APTES), which were then deposited and fixed onto the surface of paper samples via a simple, dip-coating process in water at room temperature. The resultant APTES-modified P25 TiO2 nanoparticle-coated paper samples exhibit much greater stability to UV-illumination than uncoated blank reference paper. Very little, or no, photo-degradation in terms of brightness and whiteness, respectively, of the P25-TiO2-nanoparticle-treated paper is observed. There are many other potential applications for this Green Chemistry approach to protect cellulosic fibres from UV-bleaching in sunlight and to protect their whiteness and maintain their brightness.
Original language | English |
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Pages (from-to) | 246-252 |
Number of pages | 7 |
Journal | Carbohydrate Polymers |
Volume | 114 |
Early online date | 13 Aug 2014 |
DOIs | |
Publication status | Published - 19 Dec 2014 |
Bibliographical note
© 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/Funding: European Union Seventh Framework Programme (FP7/2007-2013) for financial support under Grant Agreement Number 214653 (SURFUNCELL project), and the EPSRC for the award of a Leadership Fellowship (EP/G007594/3)
Keywords
- APTES
- dip-coating
- green chemistry
- UV-stable paper