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Azobenzene-Functionalized SBA-15 Material for Application in Selective Separation

Title data

Timm, Jana ; Stoltenberg, Christian ; Senker, Jürgen ; Bensch, Wolfgang:
Azobenzene-Functionalized SBA-15 Material for Application in Selective Separation.
In: Zeitschrift für anorganische und allgemeine Chemie. Vol. 640 (2014) Issue 3-4 . - pp. 595-603.
ISSN 0044-2313
DOI: https://doi.org/10.1002/zaac.201300477

Abstract in another language

Selective adsorption of large organic molecules is controlled by switchable azobenzene-based molecules. The azobenzene molecules change their configuration after irradiation with light of 365 nm from the trans to the cis isomer. The light-induced process occurs in the pore-system of the mesoporous silica SBA-15. A new synthetic route is presented allowing a distinct control of the density of functionalization on the inner pore walls of SBA-15. This control may lead to more possible applications of the functionalized mesoporous silica material. Herein we show that the behavior of the silica matrix depends on the density of functionalization. The density of the azobenzene functionalization in SBA-15 enables the selective up-take of different dye molecules. Not only the density is responsible for the selective up-take but also the configuration (cis or trans) of the azobenzene units in the pores. Furthermore dependences concerning the release of the embedded dye molecules are observed.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: Special Issue: Silica‐Based Nanoporous Materials
Keywords: Mesoporous materials; Silica; SBA-15; Azobenzene; Separation
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry III > Chair Inorganic Chemistry III - Univ.-Prof. Dr. Jürgen Senker
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry III
Result of work at the UBT: Yes
DDC Subjects: 500 Science
500 Science > 540 Chemistry
Date Deposited: 28 Nov 2014 11:29
Last Modified: 06 Apr 2021 09:35
URI: https://eref.uni-bayreuth.de/id/eprint/4353