About: Adsorption of zinc and copper ions on natural and ethylenediamine modified montmorillonite

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this study, adsorption of the zinc and copper ions on montmorillonite (MMT) was investigated. In all experiments performed at pH 6.4 to 4.8, the Langmuir-Freundlich isotherm was found to best fit adsorption data that confirms a monolayer formation of the metals. The maximum amounts of the adsorbed metals did not exceed a cation exchange capacity (CEC) of MMT. UV-VIS diffuse reflectance spectrometry reveals no complexes between Zn2+ or Cu2+ and MMT and thus the metal uptake took part only by ion exchange. X-ray diffraction (XRD) patterns indicated an intercalation of the metal ions into the montmorillonite interlayer. In addition, using thermogravimetry and infrared spectrometry it was found the intercalated metals create aqua complexes [Zn(H2O)6]2+ and [Cu(H2O)6]2+. In order to increase the adsorbed amounts of Zn2+ and Cu2+, MMT was previously intercalated with ethylenediamine (EDA-MMT). In this study, adsorption of the zinc and copper ions on montmorillonite (MMT) was investigated. In all experiments performed at pH 6.4 to 4.8, the Langmuir-Freundlich isotherm was found to best fit adsorption data that confirms a monolayer formation of the metals. The maximum amounts of the adsorbed metals did not exceed a cation exchange capacity (CEC) of MMT. UV-VIS diffuse reflectance spectrometry reveals no complexes between Zn2+ or Cu2+ and MMT and thus the metal uptake took part only by ion exchange. X-ray diffraction (XRD) patterns indicated an intercalation of the metal ions into the montmorillonite interlayer. In addition, using thermogravimetry and infrared spectrometry it was found the intercalated metals create aqua complexes [Zn(H2O)6]2+ and [Cu(H2O)6]2+. In order to increase the adsorbed amounts of Zn2+ and Cu2+, MMT was previously intercalated with ethylenediamine (EDA-MMT). (en)
Title	Adsorption of zinc and copper ions on natural and ethylenediamine modified montmorillonite Adsorption of zinc and copper ions on natural and ethylenediamine modified montmorillonite (en)
skos:prefLabel	Adsorption of zinc and copper ions on natural and ethylenediamine modified montmorillonite Adsorption of zinc and copper ions on natural and ethylenediamine modified montmorillonite (en)
skos:notation	RIV/61989100:27360/10:10225182!RIV11-MSM-27360___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(ED0040/01/01), S, Z(MSM6198910016)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Praus, Petr Klika, Zdeněk
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	245491
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/10:10225182
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	adsorption, intercalation, zinc, copper, montmorillonite, ethylenediamine (en)
http://linked.open.../riv/klicoveSlovo	intercalation adsorption copper zinc montmorillonite ethylenediamine
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[8BCE411002DA]
http://linked.open...i/riv/nazevZdroje	Ceramics-Silikáty
http://linked.open...in/vavai/riv/obor	JH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Regional materials science and technology centre
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	54
http://linked.open...iv/tvurceVysledku	Klika, Zdeněk Kozák, Ondřej Machovič, Vladimír Praus, Petr
http://linked.open...ain/vavai/riv/wos	000278542600013
http://linked.open...n/vavai/riv/zamer	Syntéza, struktura a vlastnosti nanomateriálů založených na bázi interkalovaných fylosylikátů
issn	0862-5468
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	27360

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