The effect of sample treatment and composition on the photoluminescence ofanatase pigments

Authors
Janes, R Edge, M Rigby, J Mourelatou, D Allen, NS
Citation
R. Janes et al., The effect of sample treatment and composition on the photoluminescence ofanatase pigments, DYE PIGMENT, 48(1), 2001, pp. 29-34
Citations number
20
Categorie Soggetti
Chemical Engineering
Journal title
DYES AND PIGMENTS
ISSN journal
01437208 → ACNP
Volume
48
Issue
1
Year of publication
2001
Pages
29 - 34
Database
ISI
SICI code
0143-7208(200101)48:1<29:TEOSTA>2.0.ZU;2-E
Abstract
We report low temperature luminescence studies of a series of pure and trea ted anatase pigments. The intensity of the green excitonic emission correla ted with the photoactivity of the pigment, recombination being enhanced in milled and coated samples. Weak emission was also detected from amorphous t itania gels and the photocatalytically active Degussa P25 pigment. The latt er gave no evidence for segregation of photocarriers because of the multiph asic nature of the material. (C) 2001 Elsevier Science Ltd. All rights rese rved.