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Hybrid systems based on organic dyes and clay minerals: Fundamentals and potential applications#

Published online by Cambridge University Press:  02 January 2018

Juraj Bujdák
Juraj Bujdák*
Affiliation:
Comenius University in Bratislava, Faculty of Natural Sciences, Department of Physical and Theoretical Chemistry, 842 15 Bratislava, Slovakia Institute of Inorganic Chemistry, Slovak Academy of Sciences, 845 36 Bratislava, Slovakia
*
*E-mail: [email protected]
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Abstract

This review summarizes several aspects of the interactions between organic dyes and clay minerals, and presents some interesting properties of hybrid materials based on these components. It explains the basic phenomena and photophysical properties of dye/clay mineral hybrid systems (DCHS) while examining the role of clay minerals in them. A brief history of using dyes as tools for clay research and on traditional materials based on DCHS is presented. Metachromasy, the phenomenon of colour change related to the formation of dye molecular aggregates is described in detail and analysed from various perspectives. The properties of DCHS, including photoactivity, luminescence, photocatalytic properties, optical anisotropy and non-linear optical properties are analysed in detail. Clay minerals often play a significant role in the occurrence of specific photophysical phenomena such as resonance energy transfer and luminescence quenching and may influence various reactions, such as conformational changes in dye molecules, photochromism, photoisomerization, photosensitization and other photochemical processes. Routes to synthesize various types of hybrid materials are also described here. The relevance of DCHS for clay research, chemistry and materials science is summarized briefly.

Keywords

dye/clay mineral hybrid systemsphotoactivityluminescencephotocatalytic propertiesoptical anisotropyorganic dyes
Type
Research Article
Information
Clay Minerals , Volume 50 , Issue 5 , December 2015 , pp. 549 - 571
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2015

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Footnotes

#

Gerhard Lagaly Award Lecture, 2014

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