Fluorescence study of reduced charge montmorillonite complexes with cationic dyes.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F09%3A00022150" target="_blank" >RIV/61989100:27360/09:00022150 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Fluorescence study of reduced charge montmorillonite complexes with cationic dyes.

Popis výsledku v původním jazyce

Series of montmorillonites (M) with reduced charge (RCM) were prepared by Li+ saturation of montmorillonite and subsequently by heating at temperatures 40, 130 and 210oC. The cation exchange capacity (CEC) and X-ray diffraction pattern (d001) of RCMs were measured. The decrease of CEC and d001 was found out with decreasing charge of RCM, i.e. increasing temperature of RCM preparation. The RCM samples were intercalated by cationic dyes, especially methylene blue (MB). The fluorescence spectra of these complexes (dye/RCM) were studied. In the fluorescence spectra the significant increase of intensity was observed with decreasing of RCM charge, dye loading and with decrease of methylene blue concentration in equilibrium aqueous solution. The fully intercalated MB/RCM complexes have the fluorescence intensity very poor whereas the MB/RCM complexes with low dye loading (about 10 %) indicate much higher intensity. That was proved for next two non laser cationic dyes (Crystal violet and Nile

Název v anglickém jazyce

Fluorescence study of reduced charge montmorillonite complexes with cationic dyes.

Popis výsledku anglicky

Series of montmorillonites (M) with reduced charge (RCM) were prepared by Li+ saturation of montmorillonite and subsequently by heating at temperatures 40, 130 and 210oC. The cation exchange capacity (CEC) and X-ray diffraction pattern (d001) of RCMs were measured. The decrease of CEC and d001 was found out with decreasing charge of RCM, i.e. increasing temperature of RCM preparation. The RCM samples were intercalated by cationic dyes, especially methylene blue (MB). The fluorescence spectra of these complexes (dye/RCM) were studied. In the fluorescence spectra the significant increase of intensity was observed with decreasing of RCM charge, dye loading and with decrease of methylene blue concentration in equilibrium aqueous solution. The fully intercalated MB/RCM complexes have the fluorescence intensity very poor whereas the MB/RCM complexes with low dye loading (about 10 %) indicate much higher intensity. That was proved for next two non laser cationic dyes (Crystal violet and Nile

Druh

D - Stať ve sborníku

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Slovenský časopis o chémii pre chemické vzdelávanie, výskum a priemysel

ISBN

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ISSN

1336-7242

e-ISSN

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Počet stran výsledku

1

Strana od-do

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Název nakladatele

Slovenská chemická spoločnosť

Místo vydání

Bratislava

Místo konání akce

Tatranské Matliare

Datum konání akce

7. 9. 2009

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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