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Whiter, brighter, and more stable cellulose paper coated with TiO 2/SiO2 core/shell nanoparticles using a layer-by-layer approach

Cheng, Fei; Lorch, Mark; Sajedin, Seyed Mani; Kelly, Stephen M.; Kornherr, Andreas

Authors

Fei Cheng

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Professor Mark Lorch M.Lorch@hull.ac.uk
Professor of Public Engagement and Science Communication. Head of Department for Chemistry, Biochemistry and Chemical Engineering

Seyed Mani Sajedin

Andreas Kornherr



Abstract

To inhibit the photocatalytic degradation of organic material supports induced by small titania (TiO2) nanoparticles, four kinds of TiO2 nanoparticles, that is, commercial P25-TiO2, commercial rutile phase TiO2, rutile TiO2 nanorods and rutile TiO2 spheres, prepared from TiCl4, were coated with a thin, but dense, coating of silica (SiO2) using a conventional sol-gel technique to form TiO2/SiO2 core/shell nanoparticles. These core/shell particles were deposited and fixed as a very thin coating onto the surface of cellulose paper samples by a wet-chemistry polyelectrolyte layer-by-layer approach. The TiO2/SiO2 nanocoated paper samples exhibit higher whiteness and brightness and greater stability to UV-bleaching than comparable samples of blank paper. There are many potential applications for this green chemistry approach to protect cellulosic fibres from UV-bleaching in sunlight and to improve their whiteness and brightness.

Citation

Cheng, F., Lorch, M., Sajedin, S. M., Kelly, S. M., & Kornherr, A. (2013). Whiter, brighter, and more stable cellulose paper coated with TiO 2/SiO2 core/shell nanoparticles using a layer-by-layer approach. ChemSusChem, 6(8), 1392-1399. https://doi.org/10.1002/cssc.201300305

Journal Article Type Article
Online Publication Date Jul 18, 2013
Publication Date Aug 14, 2013
Deposit Date Nov 13, 2014
Journal Chemsuschem
Print ISSN 1864-5631
Electronic ISSN 1864-564X
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 6
Issue 8
Pages 1392-1399
DOI https://doi.org/10.1002/cssc.201300305
Keywords General Energy; General Materials Science; General Chemical Engineering; Environmental Chemistry
Public URL https://hull-repository.worktribe.com/output/471432