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Characterization of silver nanoparticles deposited on montmorillonite
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SYSNO ASEP 0358027 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Characterization of silver nanoparticles deposited on montmorillonite Tvůrce(i) Praus, P. (CZ)
Turicová, M. (CZ)
Machovič, V. (CZ)
Študentová, S. (CZ)
Klementová, Mariana (UACH-T) RID, SAI, ORCIDZdroj.dok. Applied Clay Science. - : Elsevier - ISSN 0169-1317
Roč. 49, č. 3 (2010), s. 341-345Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova silver nanoparticles ; formaldehyde and borohydride reduction ; montmorillonite ; surface enhanced Raman scattering Vědní obor RIV CA - Anorganická chemie CEZ AV0Z40320502 - UACH-T (2005-2011) UT WOS 000280886500037 DOI 10.1016/j.clay.2010.06.009 Anotace Silver nanoparticles were prepared by reduction of silver ions intercalated into montmorillonite (MMT) with borohydride and formaldehyde. They were deposited on the external surface of the MMT particles. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and specific surface area (SSA) measurements revealed that borohydride produced very small particles with narrow size distribution (3-13 nm) evenly dispersed on the MMT surface. Silver ions reduced by formaldehyde formed both small particles and large aggregates. The Ag nanoparticles were composed of cubic and hexagonal and/or amorphous silver crystals. The Raman scattering (SERS) was significantly increased by montmorillonite covered with Ag nanoparticles, especially when prepared with borohydride. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2011
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