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Synthesis and studies on photochromic properties of vanadium doped TiO2 nanoparticles

Paper ID Volume ID Publish Year Pages File Format Full-Text
27704 44038 2010 6 PDF Available
Title
Synthesis and studies on photochromic properties of vanadium doped TiO2 nanoparticles
Abstract

Pure and (0.5–3 at%) vanadium doped TiO2 nanoparticles have been synthesized by wet chemical method. The as synthesized materials have been characterized by using XRD, atomic force microscope (AFM), Raman, EPR and UV–vis spectroscopy techniques. From XRD studies, both pure as well as vanadium doped TiO2 have been found to show pure anatase phase. The value of lattice constant c is smaller in doped TiO2 as compared to undoped and has been found to decrease with increase in vanadium concentration. AFM studies show formation of spherical particles with particle size ∼23 nm in all the samples. Photochromic behavior of these materials has been studied by making their films in alkyd resin. Vanadium doped TiO2 films show reversible change in color from beige-yellow to brownish violet on exposure to UV light. The mechanism of coloration and bleaching process has been discussed.

Keywords
Vanadium doped nano-TiO2; Wet chemical method; Photochromism
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Synthesis and studies on photochromic properties of vanadium doped TiO2 nanoparticles
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 209, Issue 1, 1 January 2010, Pages 68–73
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
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