Otro
Study of SnO2 gels by Eu3+ fluorescence spectroscopy
Registro en:
Journal of Non-Crystalline Solids, v. 147-148, n. C, p. 162-166, 1992.
0022-3093
10.1016/S0022-3093(05)80611-8
2-s2.0-0026929302
Autor
Ribeiro, Sidney José Lima
Hiratsuka, R. S.
Massabni, A. M G
Davolos, Marian Rosaly
Santilli, Celso Valentim
Pulcinelli, Sandra Helena
Resumen
Eu3+ fluorescence spectroscopy was used as a probe to study the changes in local arrangements of tin oxyhydroxide precipitate → sol → gel → glass conversion. Electronic transition intensities and 5D0 excited state lifetime variations were followed during the entire process. Adsorption of Eu3+ ions on the colloid and changes of chemical interactions occurring in each step are described. © 1992 Elsevier Science Publishers B.V. All rights reserved.