Constructing the Models Describing Protolytic Equilibria on Aminoxerogel Surface
Abstract
On the base of probing the aminoxerogel surface by H+ ions the models have been constructed for interpretation of peculiarities of reactions occurring on the surface. The model of energetic heterogeneity postulates the presence of stoichiometrically identical sorption centers having different affinity to Н+ ions. The model of polydentate binding assumes that affinity of sorption centers to the probe is dependent on the degree of occupation of sorption centers. The model of chemical reactions describes the non-ideal nature of binding Н+ ions in terms of reactions supplementing the protonation of basic sorption centers. All tested models describe the experimental data properly, the model of polydentate binding provides the most meaningful information about features of protonation equilibria.References
Холин Ю.В. Количественный физико-химический анализ комплексо-образования в растворах и на поверхностях химически модифици-рованных кремнеземов: содержательные модели, математические методы и их приложения. – Харьков: Фолио, 2000. – 288 с.
Пат. Российская Федерация № 2139244 Способ получения пористого диоксида кремния / Моросанова Е. И., Велико-родный А. А., Кузьмин Н. М. и др. – 1999. Бюл. № 28.
Чуйко А.А., Павлик Г.Е., Будкевич Г.Б. и др. Способ получения силикагелей, содержащих аминоалкильную группу // Авторское свидетельство СССР 182719, МКИ C07F по заявке № 941147, заявл. 04.02.1965, опубл. 09.06.1966, Бюл. №12.
ГОСТ 10898.5-84. Иониты. Метод определения удельной поверхности. – Москва: Изд-во стандартов, 1984. – 6 с. Группа Л66 (СССР).
Воскресенский П.И. Техника лабора-торных работ. – Москва: Химия, 1973. – 720 с.
Adamson A.W. Physical Chemistry of Surfaces. New York: Wiley, 1990.
Lucho A.M.S., Panteleimonov A.V., Kholin Y.V. et al. Simulation of adsorption equilibria on hybrid materials: Binding of metal chlorides with 3-n-propylpyridinium silsesquioxane chloride ion exchanger . J. Colloid Interface Sci. 2007. 310. 47–56.
Bjerrum J. Metal Ammine Formation in Aqueous Solution. Theory of the Reversible Step Reactions. Copenhagen: Haase, 1957. 298 p.
Kholin Y.V., Zaitsev V.N. Quantitative physicochemical analysis of equilibria on chemically modified silica surfaces. Pure Appl. Chem. 2008. 80. 1561–1592.
Jaynes E.T. Information Theory and Statistical Mechanics. Phys. Rev. 1957. 106. 620–630.
Downloads
How to Cite
Issue
Section
License
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.

