An in situ infrared spectroscopic study of ligand adsorption from aqueous solutions to cadmium telluride particle films

Authors
De Silva, KTL McQuillan, AJ
Citation
Ktl. De Silva et Aj. Mcquillan, An in situ infrared spectroscopic study of ligand adsorption from aqueous solutions to cadmium telluride particle films, COLL SURF A, 194(1-3), 2001, pp. 189-195
Citations number
25
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN journal
09277757 → ACNP
Volume
194
Issue
1-3
Year of publication
2001
Pages
189 - 195
Database
ISI
SICI code
0927-7757(200112)194:1-3<189:AISISS>2.0.ZU;2-O
Abstract
An in situ infrared spectroscopic study is described of the adsorption of 8 -quinolinol, thiosulfate, thiosalicyclic acid and diethyldithiocarbamate fr om aqueous solution to cadmium telluride (CdTe) particle films. Adsorption isotherms and adsorption constants have been derived for 8-quinolinol and t hiosulfate adsorbed to CdTe. The presence of a sulfur donor atom within the adsorbate favours adsorption to CdTe. Spectra recorded with carboxylic aci ds except thiosalicyclic gave no evidence of adsorbed species, due to their inability to displace the passive oxide film from the CdTe surface. (C) 20 01 Elsevier Science B.V. All rights reserved.