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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F10%3A86076243%21RIV11-MSM-27360___
rdf:type
skos:Concept n14:Vysledek
dcterms:description
Aggregation of methylene blue (MB), crystal violet (CV), nile blue (NB) and rhodamine B (RB) in aqueous solution were studied and percentage distribution of their species (monomer, dimer, trimer and tetramer) in variously concentrated aqueous solutions was calculated. Ca2+-montmorillonite with high layer charge (SAz-1) and reduced charge (RC-SAz(210)) were saturated with the cationic dyes (CD). The prepared cationic dye/montmorillonite complexes were analysed using fluorescence and Vis electron spectroscopy. The Vis electron spectra of fully saturated CD/SAz complexes revealed the presence of higher aggregates, which cause quenching of fluorescence. A huge increase of fluorescence was observed in CD/RC-SAz(210) complexes where mainly monomers and/or dimers of cationic dye are formed. Suppression of dye aggregation in these complexes was due to reduction of montmorillonite layer charge and low dye loading. Aggregation of methylene blue (MB), crystal violet (CV), nile blue (NB) and rhodamine B (RB) in aqueous solution were studied and percentage distribution of their species (monomer, dimer, trimer and tetramer) in variously concentrated aqueous solutions was calculated. Ca2+-montmorillonite with high layer charge (SAz-1) and reduced charge (RC-SAz(210)) were saturated with the cationic dyes (CD). The prepared cationic dye/montmorillonite complexes were analysed using fluorescence and Vis electron spectroscopy. The Vis electron spectra of fully saturated CD/SAz complexes revealed the presence of higher aggregates, which cause quenching of fluorescence. A huge increase of fluorescence was observed in CD/RC-SAz(210) complexes where mainly monomers and/or dimers of cationic dye are formed. Suppression of dye aggregation in these complexes was due to reduction of montmorillonite layer charge and low dye loading.
dcterms:title
Effect of layer charge and dye loading on spectroscopic properties of cationic dye/montmorillonite complexes. Effect of layer charge and dye loading on spectroscopic properties of cationic dye/montmorillonite complexes.
skos:prefLabel
Effect of layer charge and dye loading on spectroscopic properties of cationic dye/montmorillonite complexes. Effect of layer charge and dye loading on spectroscopic properties of cationic dye/montmorillonite complexes.
skos:notation
RIV/61989100:27360/10:86076243!RIV11-MSM-27360___
n4:aktivita
n19:Z
n4:aktivity
Z(MSM6198910016)
n4:dodaniDat
n21:2011
n4:domaciTvurceVysledku
n18:4553659
n4:druhVysledku
n13:D
n4:duvernostUdaju
n17:S
n4:entitaPredkladatele
n5:predkladatel
n4:idSjednocenehoVysledku
256038
n4:idVysledku
RIV/61989100:27360/10:86076243
n4:jazykVysledku
n8:eng
n4:klicovaSlova
Cationic dye, Montmorillonite, Fluorescence.
n4:klicoveSlovo
n9:Fluorescence. n9:Cationic%20dye n9:Montmorillonite
n4:kontrolniKodProRIV
[F5999AB6CBC4]
n4:mistoKonaniAkce
Smolenice
n4:mistoVydani
Bratislava
n4:nazevZdroje
International doctoral seminar
n4:obor
n12:JJ
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
1
n4:rokUplatneniVysledku
n21:2010
n4:tvurceVysledku
Pustková, Petra
n4:typAkce
n11:EUR
n4:zahajeniAkce
2010-05-16+02:00
n4:zamer
n10:MSM6198910016
s:numberOfPages
9
n16:hasPublisher
Slovenská technická univerzita v Bratislave
n15:isbn
978-80-8096-118-3
n20:organizacniJednotka
27360