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

Paper ID Volume ID Publish Year Pages File Format Full-Text
27651 44035 2008 9 PDF Available
Title
Tailoring the activity of Ti-based photocatalysts by playing with surface morphology and silver doping
Abstract

TiO2 thin films have been prepared on cotton fibres by using sol–gel method at low temperature (∼100 °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.

Keywords
Photochromism; Photocatalysis; Thin film; Silver-doped TiO2; Ag/TiO2–cotton composite fibres
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 196, Issues 2–3, 20 May 2008, Pages 165–173
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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