Xanthate adsorbed on ZnS studied by polarized FTIR-ATR spectroscopy

Citation
Ml. Larsson et al., Xanthate adsorbed on ZnS studied by polarized FTIR-ATR spectroscopy, LANGMUIR, 16(21), 2000, pp. 8129-8133
Citations number
22
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
LANGMUIR
ISSN journal
07437463 → ACNP
Volume
16
Issue
21
Year of publication
2000
Pages
8129 - 8133
Database
ISI
SICI code
0743-7463(20001017)16:21<8129:XAOZSB>2.0.ZU;2-L
Abstract
The structure and orientation of heptylxanthate adsorbed on a ZnS surface h ave been studied by the FTIR-ATR technique. By using polarized light and th e dichroic ratio, we found the average tilt angle to be approximately 44 de grees. The adsorbed layer studied was prepared by self-assembly from soluti on or by spraying the solution onto the surfaces of the ATR crystal for a s hort time and then rinsing with water. From the spectra we can conclude tha t there is a mixture of adsorbed heptylxanthate and formed diheptyldixantho gen on the ZnS surface. A bridging coordination of the adsorbed heptylxanth ate is proposed.