Photoactive hybrid material based on kaolinite intercalated with a reactive fluorescent silane

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F15%3A00442780" target="_blank" >RIV/61388980:_____/15:00442780 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.clay.2015.02.031" target="_blank" >http://dx.doi.org/10.1016/j.clay.2015.02.031</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.clay.2015.02.031" target="_blank" >10.1016/j.clay.2015.02.031</a>

Result language
angličtina
Original language name
Photoactive hybrid material based on kaolinite intercalated with a reactive fluorescent silane
Original language description
The main strategies to modify layered silicates with dyes have been based on ion exchange reactions. In this work, the modification was performed via the chemisorption of reactive rhodamine on the surface of kaolinite (Kaol) particles. The reactive dye (RhAptes) was synthesized via the reaction of rhodamine B (RhB) with 3-aminopropyl-triethoxy silane. Efficient modification of the Kaol surface was achieved after the pre-expansion of its structure with dimethyl sulfoxide. RhAptes reacted with the hydroxyl groups of the expanded mineral. The structural characteristics and optical properties of the hybrid material (Kaol-RhAptes) were characterized by X-ray diffraction and spectroscopy in the visible region. Absorption and fluorescence spectra of Kaol-RhAptes were similar to its dye precursors, RhB and RhAptes. Time-resolved fluorescence spectra proved only minor molecular aggregation of bound rhodamine. Partial fluorescence quenching was confirmed by fluorescence quantum yield measurement
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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