About: Preparation of silver-montmorillonite nanocomposites

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Silver nanocomposites are useful for many industrial applications. A variety of conventional sol-gel preparative methods exists for Ag nanocomposites fabrication either bulk powder or thin films. Another type of Ag nacomposites are silver nanoparciles supported on inorganic materials, such as Al2O3, SiO2, TiO2 etc., and also on phyllosilicates, such as montmorillonite (PRAUS et al., 2008) and kaolinite (PATAKFALVI et al., 2003). In this study we prepared silver nanoparticles supported on Na-rich montmorillonite (MMT) type Wyoming. At first, montmorillonite was intercalated with silver cations. Adsorption data were well fitted with Langmuir isotherm, which indicated that Ag+ formed monolayers on the MMT face. With increasing content of Ag+ the layered MMT structure gradually collapsed and exfoliated. Thereafter, the intercalated silver cations were reduced by sodium borohydride (NaBH4) and formaldehyde (CH2O). For the CH2O reduction various alkaline additives are necessary. Some of them, such as NaO Silver nanocomposites are useful for many industrial applications. A variety of conventional sol-gel preparative methods exists for Ag nanocomposites fabrication either bulk powder or thin films. Another type of Ag nacomposites are silver nanoparciles supported on inorganic materials, such as Al2O3, SiO2, TiO2 etc., and also on phyllosilicates, such as montmorillonite (PRAUS et al., 2008) and kaolinite (PATAKFALVI et al., 2003). In this study we prepared silver nanoparticles supported on Na-rich montmorillonite (MMT) type Wyoming. At first, montmorillonite was intercalated with silver cations. Adsorption data were well fitted with Langmuir isotherm, which indicated that Ag+ formed monolayers on the MMT face. With increasing content of Ag+ the layered MMT structure gradually collapsed and exfoliated. Thereafter, the intercalated silver cations were reduced by sodium borohydride (NaBH4) and formaldehyde (CH2O). For the CH2O reduction various alkaline additives are necessary. Some of them, such as NaO (en)
Title	Preparation of silver-montmorillonite nanocomposites Preparation of silver-montmorillonite nanocomposites (en)
skos:prefLabel	Preparation of silver-montmorillonite nanocomposites Preparation of silver-montmorillonite nanocomposites (en)
skos:notation	RIV/61989100:27360/08:00019528!RIV10-MSM-27360___
http://linked.open...avai/riv/aktivita	S Z
http://linked.open...avai/riv/aktivity	S, Z(MSM6198910016)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Praus, Petr
http://linked.open.../riv/druhVysledku	M - Uspořádání (zorganizování) konference
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta metalurgie a materiálového inženýrství
http://linked.open...dnocenehoVysledku	389042
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/08:00019528
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Silver; nanoparticles; monrmorillonite. (en)
http://linked.open.../riv/klicoveSlovo	monrmorillonite. Silver nanoparticles
http://linked.open...ontrolniKodProRIV	[87AF1B17480F]
http://linked.open...v/mistoKonaniAkce	Zakopané, Polsko
http://linked.open...in/vavai/riv/obor	JI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...ocetUcastnikuAkce	800 (xsd:int)
http://linked.open...nichUcastnikuAkce	780 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...iv/statKonaniAkce	PL - Polská republika
http://linked.open...iv/tvurceVysledku	Klementová, Mariana Praus, Petr Turicová, Martina
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/ukonceniAkce	2008-09-27 (xsd:date)
http://linked.open.../riv/zahajeniAkce	2008-09-22 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Syntéza, struktura a vlastnosti nanomateriálů založených na bázi interkalovaných fylosylikátů
http://localhost/t...ganizacniJednotka	27360

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