Adsorption of Nickel (II) Ions by Aluminosilicates Modified by Poly-1-Vinyl Imidazole and Poly-4-Vinyl Pyridine

Data on the synthesis and sorption properties of natural calcium aluminosilicates modified by poly-1-vinyl imidazole (PVIm) and poly-4-vinyl pyridine (PVP) are presented. The fullest recovery of nickel (II) ions from low-concentration solutions is observed for PVP-modified aluminosilicates. Adsorpti...

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Veröffentlicht in:	Protection of metals and physical chemistry of surfaces 2018-07, Vol.54 (4), p.582-586
Hauptverfasser:	Pomazkina, O. I., Filatova, E. G., Lebedeva, O. V., Pozhidaev, Yu. N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorption Aluminosilicates Aluminum silicates Characterization and Evaluation of Materials Chemistry and Materials Science Corrosion and Coatings Imidazole Industrial Chemistry/Chemical Engineering Inorganic Chemistry Materials Science Metallic Materials Nickel Organic chemistry Physicochemical Processes at the Interfaces Tribology
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Zusammenfassung:	Data on the synthesis and sorption properties of natural calcium aluminosilicates modified by poly-1-vinyl imidazole (PVIm) and poly-4-vinyl pyridine (PVP) are presented. The fullest recovery of nickel (II) ions from low-concentration solutions is observed for PVP-modified aluminosilicates. Adsorption of nickel (II) ions by PVIm-modified aluminosilicates is best described by the Freundlich adsorption model. In the case of PVP-modified aluminosilicates, the Langmuir model is more adequate. The free adsorption energy values indicate that the interaction between nickel (II) ions and modified aluminosilicates is of a chemical nature.
ISSN:	2070-2051 2070-206X
DOI:	10.1134/S2070205118040135