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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Applied Clay Science

ISSN

0169-1317

e-ISSN

—

Svazek periodika

108

Číslo periodika v rámci svazku

MAY

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

208-214

Kód UT WoS článku

000352677500025

EID výsledku v databázi Scopus

2-s2.0-84939993255