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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F10%3A10225182%21RIV11-MSM-27360___
rdf:type
n4:Vysledek skos:Concept
dcterms: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).
dcterms: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
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
skos:notation
RIV/61989100:27360/10:10225182!RIV11-MSM-27360___
n3:aktivita
n9:S n9:P n9:Z
n3:aktivity
P(ED0040/01/01), S, Z(MSM6198910016)
n3:cisloPeriodika
1
n3:dodaniDat
n8:2011
n3:domaciTvurceVysledku
n17:2173220 n17:8145652
n3:druhVysledku
n6:J
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n5:predkladatel
n3:idSjednocenehoVysledku
245491
n3:idVysledku
RIV/61989100:27360/10:10225182
n3:jazykVysledku
n18:eng
n3:klicovaSlova
adsorption, intercalation, zinc, copper, montmorillonite, ethylenediamine
n3:klicoveSlovo
n14:montmorillonite n14:intercalation n14:copper n14:ethylenediamine n14:adsorption n14:zinc
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[8BCE411002DA]
n3:nazevZdroje
Ceramics-Silikáty
n3:obor
n16:JH
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:projekt
n19:ED0040%2F01%2F01
n3:rokUplatneniVysledku
n8:2010
n3:svazekPeriodika
54
n3:tvurceVysledku
Machovič, Vladimír Kozák, Ondřej Klika, Zdeněk Praus, Petr
n3:wos
000278542600013
n3:zamer
n10:MSM6198910016
s:issn
0862-5468
s:numberOfPages
7
n7:organizacniJednotka
27360