Please use this identifier to cite or link to this item: http://repositsc.nuczu.edu.ua/handle/123456789/15698
Title: Catalytic Activity of Fibrous Complexites
Other Titles: Каталітична активність волокнистих комплексітів
Authors: Коровникова, Наталія Іванівна
Олійник, Володимир Вікторович
Keywords: complexites
fibrous sorbents
catalytic activity
hydrogen peroxide, hydrogen sulfide
Issue Date: Jul-2022
Publisher: Key Engineering Materials
Citation: Trans Tech Publications Ltd, Switzerland
Series/Report no.: Vol. 925,;pp 103-110
Abstract: The ecological situation in the world requires the solution of environmental problems associated with the processes of wastewater treatment, hydrogen sulfide pollution of various industrial facilities in order to remove such harmful impurities. The unpleasant odor that appears in industrial and adjacent waste processing areas is a constant concern for the protection of the environment. To solve these problems, it is advisable to use selective sorbents - complex. The introduction of metal ions into complex fibers due to the formation of a coordinated bond between the groups of the metal and the polymer ligand gives high molecular weight complex compounds. The operational and selective properties of the materials based on high-molecular-weight complex compounds can be determined by the type of metal ion introduced into macromolecules, the nature of the polymer chain, and thermodynamic stability. By changing the action of the above factors, complexites can be synthesized for use as highly selective catalysts for various chemical processes. The paper presents data on the catalytic activity of fibers with Cu2+, Co2+, Ni2+ ions with complexing fibers containing carboxyl, amidoxime, hydroxamic groups, using the example of the decomposition of hydrogen peroxide and oxidation of H2S, Na2S. An inhibitory effect on the oxidation of fiber functional groups in the pH range 5.5 - 12.5 was revealed. The operational and selective properties of materials based on complexites can be determined by the type of metal ion introduced into the macromolecules, by the nature of the polymer chain. By changing the action of the above factors, complexites can be synthesized to be used as highly selective catalysts for various chemical processes. It was found that the catalytic activity of the complex depends on pH, the stereochemistry of the coordination centers in the fiber matrix and significantly exceeds the activity of model low-molecular-weight complex compounds.
URI: http://repositsc.nuczu.edu.ua/handle/123456789/15698
ISSN: 662-9795,
Appears in Collections:Кафедра пожежної і техногенної безпеки об'єктів та технологій

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