The Adsorption Of Cobalt Ions By Clay Minerals

The importance of the ability of a clay mineral to adsorb metal ions has long been recognized, and many studies of metal ion exchange have been conducted. Koppelman and Dillard (2), as part of an EESCA study of adsorption by clay minerals, found CO (II) adsorbed on the surface of some clay minerals which had been in contact with CO (III) solutions. The present study was designed to investigate whether the CO (II) present is due to the reduction of CO (III) in the bulk solution or whether it is due to reduction at the clay mineral surface as part of the adsorption process.