TiO2 thin films have been prepared on cotton fibres by using sol-gel method at low temperature (similar to 100 degrees C) and metallic Ag nanoparticles were deposited on porous TiO2 film by photoreduction. The Ag-TiO2 covered cotton fibres show multichromic behaviour under visible and UV light exposure as well as photoactivity [M.J. Uddin, F. Cesano, F. Bonino, S. Bordiga, G. Spoto, D. Scarano, A. Zecchina, J. Photochem. Photobiol. A: Chem., 89 (2007) 286-294]. The developed multiactive cotton fibres show grey colour under visible light and change their colour reversibly to deep brown upon ultraviolet light exposure. The original and treated fibres have been characterized by several techniques (SEM, AFM, EDS microanalysis, Raman, UV-vis spectroscopy, XRD and TGA) and the Ag-TiO2 nanoparticles have been found to form an homogeneous thin film on the fibre surface. (C) 2007 Elsevier B.V. All rights reserved.

Tailoring the activity of Ti-based photocatalysts by playing with surface morphology and silver doping

CESANO, Federico;BERTARIONE RAVA ROSSA, Serena;BONINO, Francesca Carla;BORDIGA, Silvia;SCARANO, Domenica;ZECCHINA, Adriano
2008-01-01

Abstract

TiO2 thin films have been prepared on cotton fibres by using sol-gel method at low temperature (similar to 100 degrees C) and metallic Ag nanoparticles were deposited on porous TiO2 film by photoreduction. The Ag-TiO2 covered cotton fibres show multichromic behaviour under visible and UV light exposure as well as photoactivity [M.J. Uddin, F. Cesano, F. Bonino, S. Bordiga, G. Spoto, D. Scarano, A. Zecchina, J. Photochem. Photobiol. A: Chem., 89 (2007) 286-294]. The developed multiactive cotton fibres show grey colour under visible light and change their colour reversibly to deep brown upon ultraviolet light exposure. The original and treated fibres have been characterized by several techniques (SEM, AFM, EDS microanalysis, Raman, UV-vis spectroscopy, XRD and TGA) and the Ag-TiO2 nanoparticles have been found to form an homogeneous thin film on the fibre surface. (C) 2007 Elsevier B.V. All rights reserved.
2008
196
2-3
165
173
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TGY-4PGPVT0-2&_user=525216&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000026382&_version=1&_urlVersion=0&_userid=525216&md5=6eaf918843b6fc866d30b5f2b12b9d7a
photochromism; photocatalysis; thin film; silver-doped TiO2; Ag/TiO2-cotton composite fibres
M.J. UDDIN; F. CESANO; S. BERTARIONE; F. BONINO; S. BORDIGA; D. SCARANO; A. ZECCHINA
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/23147
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