Fluorescence study of reduced charge montmorillonite complexes with cationic dyes.

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Fluorescence study of reduced charge montmorillonite complexes with cationic dyes.
Original language description
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
Czech name
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Czech description
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Slovenský časopis o chémii pre chemické vzdelávanie, výskum a priemysel
ISBN
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ISSN
1336-7242
e-ISSN
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Number of pages
1
Pages from-to
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Publisher name
Slovenská chemická spoločnosť
Place of publication
Bratislava
Event location
Tatranské Matliare
Event date
Sep 7, 2009
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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