Obtaining an organic-inorganic sorbent based on vermiculite modified with urotropin and hydrolyzed polyacrylonitrile

Kholmurodova, Sabokhat; Turaev, Khayit KU; Alikulov, Rustam; Beknazarov, Khasan; Nomozov, Abror; Eshmurodov, Eshmurodov Khurshid

doi:10.22034/crl.2025.481061.1435

Obtaining an organic-inorganic sorbent based on vermiculite modified with urotropin and hydrolyzed polyacrylonitrile

Document Type : Research Article

Authors

Sabokhat Kholmurodova ¹

Khayit KU Turaev ¹

Rustam Alikulov ¹

Khasan Beknazarov ²

Abror Nomozov ³^{, 4}

Eshmurodov Khurshid Eshmurodov ⁵

¹ Department of Chemistry Termez State University, Termez, P. O. Box: 19100, Uzbekistan

² Doctor of Technical Sciences, Professor, Angreen University. Tashkent, Uzbekistan

³ Department of Chemical Engineering, Termez State University of Engineering and Agrptechnologies. Termez, P. O. Box: 19100, Uzbekistan

⁴ Department of Medical and Biological Chemistry, Termez Branch of Tashkent Medical Academy. Termez, P. O. Box: 19100, Uzbekistan

⁵ Department of Inoorganic Chemistry, Tashkent Institute of Chemical Technology, Tashkent, Uzbekistan.

https://doi.org/10.22034/crl.2025.481061.1435

Abstract

In this article presents information about the modification of vermiculite with hydrolyzed polyacrylonitrile and the synthesis of organic-inorganic sorbent obtained by adding hexamine as a surface-active group. Morphological images of the composite material obtained based on SEM analysis show the changes. below, surface area sizes were calculated based on isotherms drawn based on the results of adsorption-desorption using water vapor. The static and dynamic exchange capacities of the sorbent were studied. It was determined that the highest SAS value was 13 mmol-eq/g and DAS value was 1 mmol-eq/g in the presence of Cu2+ ion solution. The thermal tolerance of the obtained sorbent, SEM images of the surface, elemental analysis and the structure of existing bonds were analyzed using novel-infrared spectroscopy methods. Based on the BET method by absorbing water vapor at low pressure, the studied structural sorption properties of the sorbent showed that they have a mesoporous structure and high sorption properties.

Graphical Abstract