ADSORPTION ON HYDROUS OXIDES. IV. MECHANISMS OF ADSORPTION OF VARIOUS IONS ON GOETHITE

摘要: Summary Infrared spectroscopy has been used to investigate the complexes that are formed when acids evaporated onto goethite. It is probable that, like HPO2−4, anions SO2−4, SeO2−3, and oxalate adsorbed by ligand exchange form binuclear bridging where two singly coordinated A-type OH groups replaced oxygen atoms of one ligand. There evidence HPO2−4 likely be present in this wet environments, probably also true for SO2−4 SeO2−3. Fluoride ions can completely replace but do not C- or B-type coordinated, respectively, three Fe3+ ions. The other halides, nitrate, benzoate partially groups, being as a monodentate ligand. Copper appear react with zinc on goethite (100) face conjunction carbonate bicarbonate.