Fluorescence of reduced charge montmorillonite complexes with methylene blue: Experiments and molecular modeling

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F09%3A00207105" target="_blank" >RIV/00216208:11320/09:00207105 - isvavai.cz</a>

Alternative codes found

RIV/61388980:_____/09:00331826 RIV/61989100:27360/09:00022151

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Fluorescence of reduced charge montmorillonite complexes with methylene blue: Experiments and molecular modeling

Original language description

The intensity of fluorescence of montmorillonites fully saturated by methylene blue (MB) is very poor due to energy dissipation in MB aggregates. A series of reduced charge montmorillonites (RCM) were prepared from Na-homoionic SWy and Ca homoionic SAz with the aim to decrease the MB aggregation. Fine tuning MB adsorption degree by charge reduction and MB concentration enabled controlled production of different dye species from aggregates via dimers to monomers. It was shown that the intensity of the fluorescence of low-loaded MB-RCM complexes is enhanced by several orders of magnitude with respect to dye-saturated original montmorillonites. XRD analyses, molecular modeling, and diffuse reflectance spectroscopy revealed that low MB-loaded RCMs are veryprobably adsorbed mainly on the external montmorillonite surface as isolated dye molecules. Such a state cannot be achieved in the solid state without very careful tailoring of the host-guest interaction.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

<a href="/en/project/GA205%2F08%2F0869" target="_blank" >GA205/08/0869: Clay minerals as host matrices for functional nanostructures</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2009

Confidentiality

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

Name of the periodical

Journal of Colloid and Interface Science

ISSN

0021-9797

e-ISSN

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Volume of the periodical

2009

Issue of the periodical within the volume

339

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

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UT code for WoS article

000270748500018

EID of the result in the Scopus database

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