DETERMINATION OF OPTIMAL PARAMETERS FOR SYNTHESIS OF SILVER NANOPARTICLES STABILIZED WITH POLYETHYLENE GLYCOL

Within the framework of this work, the results are presented of a study of the effect of the concentrations of the stabilizer and precursor on the synthesis of silver nanoparticles. Silver nitrate was used as a precursor, and polyethylene glycol with a molecular weight from 200 to 600 Da was used as...

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Autores principales:	A.V. Blinov, A.A. Gvozdenko, А.A. Blinova, A.V. Kobina, A.B. Golik, D.G. Maglakelidze, O.K. Vishnitskaya
Formato:	article
Lenguaje:	RU
Publicado:	Tver State University 2021
Materias:	silver nanoparticles polyethylene glycol stabilizer precursor spectrophotometry plasmon resonance photon correlation spectroscopy computer quantum chemical modeling Physical and theoretical chemistry QD450-801
Acceso en línea:	https://doaj.org/article/0b76bb31009f4e4586a852a042de977d
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spelling	oai:doaj.org-article:0b76bb31009f4e4586a852a042de977d2021-12-03T08:20:47ZDETERMINATION OF OPTIMAL PARAMETERS FOR SYNTHESIS OF SILVER NANOPARTICLES STABILIZED WITH POLYETHYLENE GLYCOL10.26456/pcascnn/2021.13.0322226-44422658-4360https://doaj.org/article/0b76bb31009f4e4586a852a042de977d2021-12-01T00:00:00Zhttps://physchemaspects.ru/2021/doi-10-26456-pcascnn-2021-13-032/?lang=enhttps://doaj.org/toc/2226-4442https://doaj.org/toc/2658-4360Within the framework of this work, the results are presented of a study of the effect of the concentrations of the stabilizer and precursor on the synthesis of silver nanoparticles. Silver nitrate was used as a precursor, and polyethylene glycol with a molecular weight from 200 to 600 Da was used as a stabilizer. The synthesis was carried out by the method of chemical reduction in an aqueous medium. The obtained samples were investigated by photon correlation spectroscopy and spectrophotometry. The presence of a characteristic absorption band at 400 nm in the absorption spectra of all samples of nanosized silver stabilized with polyethylene glycol was established, which is due to the appearance of surface plasmon resonance in metallic silver nanoparticles. It was also found that at the highest and lowest concentration of the stabilizer, equal, respectively, 0,005 and 0,1 mass. %, the formation of large silver particles with an average hydrodynamic radius from 132 to 1900 nm is observed in the reaction system. As a result, the optimal parameters for the synthesis of aggregatively stable silver nanoparticles were determined: the concentration of silver nitrate CM(AgNO3)=0,05 M and the concentration of polyethylene glycol equal to 0,01 – 0,05 %. Computer quantum-chemical modeling is carried out. It is found that the interaction of the silver atom with the terminal hydroxogroup in the polyethylene glycol molecule in the elementary act of interaction during the stabilization of silver nanoparticles by this polymer is energetically advantageous. This type of interaction is characterized by an absolute chemical hardness equal to η=0,146, and an internal energy of E=–2048,34 kcal / mol.A.V. BlinovA.A. GvozdenkoА.A. BlinovaA.V. KobinaA.B. GolikD.G. MaglakelidzeO.K. VishnitskayaTver State Universityarticlesilver nanoparticlespolyethylene glycolstabilizerprecursorspectrophotometryplasmon resonancephoton correlation spectroscopycomputer quantum chemical modelingPhysical and theoretical chemistryQD450-801RUФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, Iss 13, Pp 32-43 (2021)
institution	DOAJ
collection	DOAJ
language	RU
topic	silver nanoparticles polyethylene glycol stabilizer precursor spectrophotometry plasmon resonance photon correlation spectroscopy computer quantum chemical modeling Physical and theoretical chemistry QD450-801
spellingShingle	silver nanoparticles polyethylene glycol stabilizer precursor spectrophotometry plasmon resonance photon correlation spectroscopy computer quantum chemical modeling Physical and theoretical chemistry QD450-801 A.V. Blinov A.A. Gvozdenko А.A. Blinova A.V. Kobina A.B. Golik D.G. Maglakelidze O.K. Vishnitskaya DETERMINATION OF OPTIMAL PARAMETERS FOR SYNTHESIS OF SILVER NANOPARTICLES STABILIZED WITH POLYETHYLENE GLYCOL
description	Within the framework of this work, the results are presented of a study of the effect of the concentrations of the stabilizer and precursor on the synthesis of silver nanoparticles. Silver nitrate was used as a precursor, and polyethylene glycol with a molecular weight from 200 to 600 Da was used as a stabilizer. The synthesis was carried out by the method of chemical reduction in an aqueous medium. The obtained samples were investigated by photon correlation spectroscopy and spectrophotometry. The presence of a characteristic absorption band at 400 nm in the absorption spectra of all samples of nanosized silver stabilized with polyethylene glycol was established, which is due to the appearance of surface plasmon resonance in metallic silver nanoparticles. It was also found that at the highest and lowest concentration of the stabilizer, equal, respectively, 0,005 and 0,1 mass. %, the formation of large silver particles with an average hydrodynamic radius from 132 to 1900 nm is observed in the reaction system. As a result, the optimal parameters for the synthesis of aggregatively stable silver nanoparticles were determined: the concentration of silver nitrate CM(AgNO3)=0,05 M and the concentration of polyethylene glycol equal to 0,01 – 0,05 %. Computer quantum-chemical modeling is carried out. It is found that the interaction of the silver atom with the terminal hydroxogroup in the polyethylene glycol molecule in the elementary act of interaction during the stabilization of silver nanoparticles by this polymer is energetically advantageous. This type of interaction is characterized by an absolute chemical hardness equal to η=0,146, and an internal energy of E=–2048,34 kcal / mol.
format	article
author	A.V. Blinov A.A. Gvozdenko А.A. Blinova A.V. Kobina A.B. Golik D.G. Maglakelidze O.K. Vishnitskaya
author_facet	A.V. Blinov A.A. Gvozdenko А.A. Blinova A.V. Kobina A.B. Golik D.G. Maglakelidze O.K. Vishnitskaya
author_sort	A.V. Blinov
title	DETERMINATION OF OPTIMAL PARAMETERS FOR SYNTHESIS OF SILVER NANOPARTICLES STABILIZED WITH POLYETHYLENE GLYCOL
title_short	DETERMINATION OF OPTIMAL PARAMETERS FOR SYNTHESIS OF SILVER NANOPARTICLES STABILIZED WITH POLYETHYLENE GLYCOL
title_full	DETERMINATION OF OPTIMAL PARAMETERS FOR SYNTHESIS OF SILVER NANOPARTICLES STABILIZED WITH POLYETHYLENE GLYCOL
title_fullStr	DETERMINATION OF OPTIMAL PARAMETERS FOR SYNTHESIS OF SILVER NANOPARTICLES STABILIZED WITH POLYETHYLENE GLYCOL
title_full_unstemmed	DETERMINATION OF OPTIMAL PARAMETERS FOR SYNTHESIS OF SILVER NANOPARTICLES STABILIZED WITH POLYETHYLENE GLYCOL
title_sort	determination of optimal parameters for synthesis of silver nanoparticles stabilized with polyethylene glycol
publisher	Tver State University
publishDate	2021
url	https://doaj.org/article/0b76bb31009f4e4586a852a042de977d
work_keys_str_mv	AT avblinov determinationofoptimalparametersforsynthesisofsilvernanoparticlesstabilizedwithpolyethyleneglycol AT aagvozdenko determinationofoptimalparametersforsynthesisofsilvernanoparticlesstabilizedwithpolyethyleneglycol AT aablinova determinationofoptimalparametersforsynthesisofsilvernanoparticlesstabilizedwithpolyethyleneglycol AT avkobina determinationofoptimalparametersforsynthesisofsilvernanoparticlesstabilizedwithpolyethyleneglycol AT abgolik determinationofoptimalparametersforsynthesisofsilvernanoparticlesstabilizedwithpolyethyleneglycol AT dgmaglakelidze determinationofoptimalparametersforsynthesisofsilvernanoparticlesstabilizedwithpolyethyleneglycol AT okvishnitskaya determinationofoptimalparametersforsynthesisofsilvernanoparticlesstabilizedwithpolyethyleneglycol
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DETERMINATION OF OPTIMAL PARAMETERS FOR SYNTHESIS OF SILVER NANOPARTICLES STABILIZED WITH POLYETHYLENE GLYCOL

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