SYNTHESIS OF SPHERICAL SILICA PARTICLES WITH 3-MERCAPTOPROPYL GROUPS IN THEIR SURFACE LAYER

Spherical silica particles were synthesized by modified Stöber method using tetraethoxysilane and 3- mercaptopropyltrimethoxysilane (MPTMS). It was shown that their size (500-760 nm) depends on the nature of the catalyst used in the prehydrolysis of MPTMS (at constant alkoxysilanes ratio). Elemental...

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Main Authors:	Nazarchuk G. І., Melnyk І. V., Zub Yu. L.
Format:	Article
Language:	English
Published:	Academy of Sciences of Moldova, Institute of Chemistry 2012-06-01
Series:	Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry
Subjects:	silica spheres modiﬁ ed Stöber method 3-mercaptopropyl groups
Online Access:	http://www.cjm.asm.md/sites/default/files/article_files/Nazarchuk%20028%20.pdf

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spelling	doaj-5ffb74cebabb42e1909fc491b4e1c3672021-07-02T02:13:47ZengAcademy of Sciences of Moldova, Institute of ChemistryChemistry Journal of Moldova: General, Industrial and Ecological Chemistry1857-17272345-16882012-06-0171157161SYNTHESIS OF SPHERICAL SILICA PARTICLES WITH 3-MERCAPTOPROPYL GROUPS IN THEIR SURFACE LAYERNazarchuk G. І.0Melnyk І. V.1Zub Yu. L.2Chuiko Institute of Surface Chemistry, National Academy of Science of Ukraine, 17, General Naumov Street, Kyiv 03164 UkraineChuiko Institute of Surface Chemistry, National Academy of Science of Ukraine, 17, General Naumov Street, Kyiv 03164 UkraineChuiko Institute of Surface Chemistry, National Academy of Science of Ukraine, 17, General Naumov Street, Kyiv 03164 UkraineSpherical silica particles were synthesized by modified Stöber method using tetraethoxysilane and 3- mercaptopropyltrimethoxysilane (MPTMS). It was shown that their size (500-760 nm) depends on the nature of the catalyst used in the prehydrolysis of MPTMS (at constant alkoxysilanes ratio). Elemental analysis, thermogravimetry and IR spectroscopy data indicate the presence of thiol groups (2.8 mmol/g) in the surface layer. It was established that obtained nanospherical silica particles can adsorb Ag(I) ions from their acidified aqueous solutions.http://www.cjm.asm.md/sites/default/files/article_files/Nazarchuk%20028%20.pdfsilica spheresmodiﬁ ed Stöber method3-mercaptopropyl groups
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Nazarchuk G. І. Melnyk І. V. Zub Yu. L.
spellingShingle	Nazarchuk G. І. Melnyk І. V. Zub Yu. L. SYNTHESIS OF SPHERICAL SILICA PARTICLES WITH 3-MERCAPTOPROPYL GROUPS IN THEIR SURFACE LAYER Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry silica spheres modiﬁ ed Stöber method 3-mercaptopropyl groups
author_facet	Nazarchuk G. І. Melnyk І. V. Zub Yu. L.
author_sort	Nazarchuk G. І.
title	SYNTHESIS OF SPHERICAL SILICA PARTICLES WITH 3-MERCAPTOPROPYL GROUPS IN THEIR SURFACE LAYER
title_short	SYNTHESIS OF SPHERICAL SILICA PARTICLES WITH 3-MERCAPTOPROPYL GROUPS IN THEIR SURFACE LAYER
title_full	SYNTHESIS OF SPHERICAL SILICA PARTICLES WITH 3-MERCAPTOPROPYL GROUPS IN THEIR SURFACE LAYER
title_fullStr	SYNTHESIS OF SPHERICAL SILICA PARTICLES WITH 3-MERCAPTOPROPYL GROUPS IN THEIR SURFACE LAYER
title_full_unstemmed	SYNTHESIS OF SPHERICAL SILICA PARTICLES WITH 3-MERCAPTOPROPYL GROUPS IN THEIR SURFACE LAYER
title_sort	synthesis of spherical silica particles with 3-mercaptopropyl groups in their surface layer
publisher	Academy of Sciences of Moldova, Institute of Chemistry
series	Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry
issn	1857-1727 2345-1688
publishDate	2012-06-01
description	Spherical silica particles were synthesized by modified Stöber method using tetraethoxysilane and 3- mercaptopropyltrimethoxysilane (MPTMS). It was shown that their size (500-760 nm) depends on the nature of the catalyst used in the prehydrolysis of MPTMS (at constant alkoxysilanes ratio). Elemental analysis, thermogravimetry and IR spectroscopy data indicate the presence of thiol groups (2.8 mmol/g) in the surface layer. It was established that obtained nanospherical silica particles can adsorb Ag(I) ions from their acidified aqueous solutions.
topic	silica spheres modiﬁ ed Stöber method 3-mercaptopropyl groups
url	http://www.cjm.asm.md/sites/default/files/article_files/Nazarchuk%20028%20.pdf
work_keys_str_mv	AT nazarchukgí synthesisofsphericalsilicaparticleswith3mercaptopropylgroupsintheirsurfacelayer AT melnykív synthesisofsphericalsilicaparticleswith3mercaptopropylgroupsintheirsurfacelayer AT zubyul synthesisofsphericalsilicaparticleswith3mercaptopropylgroupsintheirsurfacelayer
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SYNTHESIS OF SPHERICAL SILICA PARTICLES WITH 3-MERCAPTOPROPYL GROUPS IN THEIR SURFACE LAYER

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