title: Adsorption of univalent and bivalent metal nitrates on hydrous lead dioxide Adsorption behaviour of potassium, cupric, zinc, cadmium and nitrate ions.
abstract: The individual adsorption behaviour of potassium, cupric, zinc, cadmium and nitrate ions on hydrous lead dioxide (HLD) was investigated. HLD was found to be an amphoteric ion-exchanger with an equi-adsorption point in the vicinity of pH 4.6. For bivalent metal ions, the amount of adsorption increased with pH (at pH > 3) and there was almost 100% adsorption at pH > 6. Both the adsorption capacity and the adsorption affinity on HLD were in the order copper(II) > zinc(II) > cadmium(II).
authors.affiliation: Osaka Municipal Technical Research Institute, Osaka, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Kawano
authors.forename: Y
authors.initials: Y
authors.lastname: Nakai
authors.forename: T
authors.initials: T
authors.lastname: Matsuda
authors.forename: T
authors.initials: T
authors.lastname: Nagai