About: Study of silver adsorption on montmorillonite

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Description	In this work, Ag+ adsorption on Na+-rich montmorillonite (MMT) type Wyoming was studied. Adsorption data were fitted with several common isotherms but the best regression parameters were obtained for Langmuir model. It indicates that Ag+ was adsorbed on the MMT surface forming a monolayer. By adsorption of small amounts of Ag+ enlargement of the specific surface area (SSA) of micro- (r=0.4-0.5 nm) and mesopores (r=1.5-3 nm) was found. Intercalation of Ag+ into MMT was observed using X-ray diffraction (XRD). With increasing concentration of the silver nitrate solutions the content of Ag+ in MMT increased and the layered MMT structure gradually collapsed and exfoliated. The MMT samples saturated with Ag+ were treated with the sodium borohydride solutions to produce Ag0. The mean size of the Ag0crystallites of L111 = 8.5(1) nm was estimated. The metal silver nanoparticles are assumed to be located at the layer surface and crystal edges of MMT. In this work, Ag+ adsorption on Na+-rich montmorillonite (MMT) type Wyoming was studied. Adsorption data were fitted with several common isotherms but the best regression parameters were obtained for Langmuir model. It indicates that Ag+ was adsorbed on the MMT surface forming a monolayer. By adsorption of small amounts of Ag+ enlargement of the specific surface area (SSA) of micro- (r=0.4-0.5 nm) and mesopores (r=1.5-3 nm) was found. Intercalation of Ag+ into MMT was observed using X-ray diffraction (XRD). With increasing concentration of the silver nitrate solutions the content of Ag+ in MMT increased and the layered MMT structure gradually collapsed and exfoliated. The MMT samples saturated with Ag+ were treated with the sodium borohydride solutions to produce Ag0. The mean size of the Ag0crystallites of L111 = 8.5(1) nm was estimated. The metal silver nanoparticles are assumed to be located at the layer surface and crystal edges of MMT. (en)
Title	Study of silver adsorption on montmorillonite Study of silver adsorption on montmorillonite (en)
skos:prefLabel	Study of silver adsorption on montmorillonite Study of silver adsorption on montmorillonite (en)
skos:notation	RIV/61989100:27360/08:00019594!RIV10-MSM-27360___
http://linked.open...avai/riv/aktivita	S Z
http://linked.open...avai/riv/aktivity	S, Z(MSM6198910016)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Valášková, Marta Praus, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
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	398165
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/08:00019594
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Adsorption; intercalation; silver; montmorillonite; nanoparticles; pore size distribution; specific surface area; X-ray powder diffraction. (en)
http://linked.open.../riv/klicoveSlovo	X-ray powder diffraction. intercalation specific surface area Adsorption nanoparticles montmorillonite silver pore size distribution
http://linked.open...odStatuVydavatele	BR - Brazilská federativní republika
http://linked.open...ontrolniKodProRIV	[12EAA4E09886]
http://linked.open...i/riv/nazevZdroje	Journal of the Brazilian Chemical Society
http://linked.open...in/vavai/riv/obor	JI
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	19
http://linked.open...iv/tvurceVysledku	Praus, Petr Valášková, Marta Turicová, Martina
http://linked.open...n/vavai/riv/zamer	Syntéza, struktura a vlastnosti nanomateriálů založených na bázi interkalovaných fylosylikátů
issn	0103-5053
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	27360
is http://linked.open...avai/riv/vysledek of	Study of silver adsorption on montmorillonite Study of silver adsorption on montmorillonite Study of silver adsorption on montmorillonite Study of silver adsorption on montmorillonite

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