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Photosensitization of Colloidal SnO2 Semiconductor Nanoparticles with Xanthene Dyes
Joint Authors
Paramaguru, G.
Renganathan, R.
Vanitha, G.
Nagarajan, N.
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-04
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The photochemical behavior of xanthene dyes (fluorescein, erythrosine, and eosin) with colloidal SnO2 nanoparticles was probed by UV-visible, steady state, and time resolved fluorescence measurements.
The prepared SnO2 nanoparticles were characterized by using UV-visible and powder XRD measurements.
The xanthene dyes were adsorbed on the surface of colloidal SnO2 nanoparticles through electrostatic interaction.
Apparent association constant (Kapp) was calculated from the relevant fluorescence data.
The larger value of apparent association constant indicates a strong association between xanthene dyes and SnO2 nanoparticles.
The fluorescence quenching is mainly attributed to electron transfer from the excited state xanthenes to the conduction band of colloidal SnO2.
The electron transfer mechanism was explained based on the Rehm-Weller equation as well as the energy level diagram.
American Psychological Association (APA)
Nagarajan, N.& Paramaguru, G.& Vanitha, G.& Renganathan, R.. 2013. Photosensitization of Colloidal SnO2 Semiconductor Nanoparticles with Xanthene Dyes. Journal of Chemistry،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-482892
Modern Language Association (MLA)
Nagarajan, N.…[et al.]. Photosensitization of Colloidal SnO2 Semiconductor Nanoparticles with Xanthene Dyes. Journal of Chemistry No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-482892
American Medical Association (AMA)
Nagarajan, N.& Paramaguru, G.& Vanitha, G.& Renganathan, R.. Photosensitization of Colloidal SnO2 Semiconductor Nanoparticles with Xanthene Dyes. Journal of Chemistry. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-482892
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-482892