X-RAY PHOTOELECTRON AND INFRARED SPECTROSCOPIC INVESTIGATION OF SPHALERITE ACTIVATION WITH IRON

Authors
BRIENNE SHR ZHANG QS BUTLER IS XU ZH FINCH JA
Citation
Shr. Brienne et al., X-RAY PHOTOELECTRON AND INFRARED SPECTROSCOPIC INVESTIGATION OF SPHALERITE ACTIVATION WITH IRON, Langmuir, 10(10), 1994, pp. 3582-3586
Citations number
39
Categorie Soggetti
Chemistry Physical
Journal title
Langmuir → ACNP
ISSN journal
07437463
Volume
10
Issue
10
Year of publication
1994
Pages
3582 - 3586
Database
ISI
SICI code
0743-7463(1994)10:10<3582:XPAISI>2.0.ZU;2-6
Abstract
The interaction of the sphalerite (ZnS) mineral with ferrous, ferric, and xanthate ions at pH 10 has been studied by using ex situ X-ray pho toelectron (XPS) and ex situ and in situ infrared (DRIFTS and ATR, res pectively) spectroscopy. Interaction occurs with Fe2+ but not with Fe3 +. The mechanism involves initial adsorption of Fe2+, followed by oxid ation to Fe3+, and subsequent reaction with xanthate. The final surfac e product is hydrophobic and may be a factor in the notation of sphale rite.