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Investigation of the electrosurface properties of NiO and Fe2O3 in azole solutions

Dmitrieva, I. B., Tikhomolova, K. P., Chukhno, A. S., Prokopovich, Polina and Starov, V. M. 2007. Investigation of the electrosurface properties of NiO and Fe2O3 in azole solutions. Colloids and Surfaces A: Physicochemical and Engineering Aspects 300 (3) , pp. 315-320. 10.1016/j.colsurfa.2007.01.046

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The electrokinetic study of heterogeneous system consisting of Ni(II) and Fe(III) oxide powders in aqueous azole solutions is presented. Diazole, triazole and tetrazole were used in our experiments. Various combinations of operating conditions such as pH, electrolyte and azole concentrations were employed. Zeta-potentials of powders with adsorbed azoles were obtained in order to investigate the interactions occurring between azoles and the oxide surfaces. In the presence of azoles the equilibration process of zeta-potential of oxide surfaces has a very special “damping oscillation” character and the equilibration process continues for around a week. However, kinetics of adsorption of azoles is completed in approximately 3 h. The latter shows a complex behaviour of adsorbed azoles on oxide surfaces.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: R Medicine > RM Therapeutics. Pharmacology
R Medicine > RS Pharmacy and materia medica
Uncontrolled Keywords: Nickel(II) oxide; Ferric(III) oxide; Azoles; Microelectrophoresis; Specific adsorption; Surface complexation
Publisher: Elsevier
ISSN: 0927-7757
Last Modified: 03 Sep 2019 08:26

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