About: Adsorption of the cationic surfactants on montmorillonite

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Adsorption of cetyltrimethylammonium (CTA) and cetylpyridinium (CP) on Na-rich montmorillonite (MMT) was studied. For this purpose, the adsorption isotherms of CTA and CP along with desorption curves of metal cations (Na+, K+, Ca2+, Mg2+) were constructed. Equilibrium data were analysed by their fitting with adsorption isotherms. The adsorption of CP is well described by the Langmuir isotherm. In case of CTA, the best fitting Langmuir-Freundlich model with the power constant r<1 was found. It can be explained by the CTA higher degree of intercalation into the MMT interlayer space. Infrared, X-ray diffraction patterns, specific surface area, porosity, and moisture adsorption measurements of montmorillonite also revealed that both surfactants were adsorbed in monolayer arrangements but CP in the higher amount than CTA. The results of molecular modelling showed that interaction energies between CTA and the external MMT surface have the lower energy values than in case of CP. This support idea that C Adsorption of cetyltrimethylammonium (CTA) and cetylpyridinium (CP) on Na-rich montmorillonite (MMT) was studied. For this purpose, the adsorption isotherms of CTA and CP along with desorption curves of metal cations (Na+, K+, Ca2+, Mg2+) were constructed. Equilibrium data were analysed by their fitting with adsorption isotherms. The adsorption of CP is well described by the Langmuir isotherm. In case of CTA, the best fitting Langmuir-Freundlich model with the power constant r<1 was found. It can be explained by the CTA higher degree of intercalation into the MMT interlayer space. Infrared, X-ray diffraction patterns, specific surface area, porosity, and moisture adsorption measurements of montmorillonite also revealed that both surfactants were adsorbed in monolayer arrangements but CP in the higher amount than CTA. The results of molecular modelling showed that interaction energies between CTA and the external MMT surface have the lower energy values than in case of CP. This support idea that C (en)
Title	Adsorption of the cationic surfactants on montmorillonite Adsorption of the cationic surfactants on montmorillonite (en)
skos:prefLabel	Adsorption of the cationic surfactants on montmorillonite Adsorption of the cationic surfactants on montmorillonite (en)
skos:notation	RIV/61989100:27360/08:00019604!RIV10-MSM-27360___
http://linked.open...avai/riv/aktivita	S Z
http://linked.open...avai/riv/aktivity	S, Z(MSM0021620835), Z(MSM6198910016)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	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	354969
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/08:00019604
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Adsorption; intercalation; montmorillonite; cationic surfactants; cetyltrimethylammonium; cetylpyridinium. (en)
http://linked.open.../riv/klicoveSlovo	intercalation cationic surfactants Adsorption montmorillonite cetylpyridinium. cetyltrimethylammonium
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[F6FA642D09A0]
http://linked.open...i/riv/nazevZdroje	Materials Structure in Chemistry, Biology, Physics and Technology
http://linked.open...in/vavai/riv/obor	JI
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	15
http://linked.open...iv/tvurceVysledku	Pospíšil, Miroslav Praus, Petr
http://linked.open...n/vavai/riv/zamer	Fyzika molekulárních, makromolekulárních a biologických systémů Syntéza, struktura a vlastnosti nanomateriálů založených na bázi interkalovaných fylosylikátů
issn	1211-5894
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	27360

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