Applied Sciences
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DOI: The Study Of The IR Spectra Of The Impregnated Sorbents Before And After The Sorption Of Ag⁺ Ions
Ochildiyev Sherzod Sherali o‘g‘li , Termez state university, UzbekistanAbstract
This study investigates the adsorption of Ag⁺ ions by polymer sorbents impregnated with organic ligands using IR spectroscopy. Comparative spectra recorded before and after adsorption show systematic shifts of characteristic vibrational bands, confirming coordination-driven complex formation between Ag⁺ and donor functional groups on the sorbent surface. Ligands such as MAB, DEDTK, and DADTFK bind within the polymer matrix and yield stable metal–ligand complexes; diagnostic changes are observed in bands assigned to N–H, C=N, and, for phosphorus-containing ligands, P=S and P–S modes. The polymer matrix exhibits the expected polystyrene signatures, against which new or shifted bands are benchmarked to infer interaction strength and site specificity. The results underscore the decisive role of ligand functionality in designing selective sorbents for silver ion separation and purification.
Keywords
Impregnated sorbents, silver ion (Ag⁺), polymer matrix
References
Даминова Ш.Ш., Кадырова З.Ч., Сафаров Ё.Т., Пардаев О.Т., Шарипов Х.Т. ИК-спектроскопическое исследование хелатообразущих сорбентов на основе cополимера стирола и дивинилбензола и их комплексов с Ag(I), Сu(II), Ni(II), Fe(III) // Узб.химич.журн. -2013. - №6. –С. 6-10.
Даминова Ш.Ш., Кадирова З.Ч., Шарипов Х.Т. ИК-спектроскопическое исследование переходных металлов с импрегнированными сорбентами на основе Пороласа // Узбекский химич. журн -2016. -№6. -C.3-9.
Daminova Sh.Sh., Kadirova Z.Ch., Sharipov H.T. Investigation of copper, nickel (II), and iron (III) ions sorption on SIR by using FTIR and DRS methods // Austrian Journal of Technical and Natural Sciences. -2016. N9-10. –P.79-83.
Основы аналитической химии /Под ред. Золотова Ю.А. - М.: Высшая школа, 1999, T.2. - 297с.
Ho Y. S. Review of second-order models for adsorption systems // Journal of Hazardous Materials. -2006. – V.136. –P. 681-689. //doi.org/10.1016/j.jhazmat.2005.12.043.
Тарасевич Б.Н. ИК спектры основных классов органических соединений. -Москва 2012.
Meng Zhang, Han Wang, Yiwei Wu, Xiaoxiao Yu. Silver ion-imprinted magnetic adsorbent hyphenated to single particle-ICP-MS for separation and analysis of dissolved silver and silver nanoparticles in antibacterial gel extracts. Analytica Chimica Acta. Volume 1279, 23 October 2023, 341846. //doi.org/10.1016/j.aca.2023.341846.
Lubomir Djerahov, Penka Vasileva, Irina Karadjova, Rama Mohan Kurakalva, Keshav Krishna Aradhi. Chitosan film loaded with silver nanoparticles-sorbent for solid phase extraction of Al(III), Cd(II), Cu(II), Co(II), Fe(III), Ni(II), Pb(II) and Zn(II). -Carbohydrate Polymers. Volume 147, 20 August 2016, Pages 45-52. //doi.org/10.1016/j.carbpol.2016.03.080.
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