Luminescent alumina-based aerogels modified with tris(8-hydroxyquinolinato)aluminum

  • Kh. E. Yorov
  • A. D. Yapryntsev
  • A. E. Baranchikov
  • T. V. Khamova
  • E. A. Straumal
  • S. A. Lermontov
  • V. K. Ivanov
Original Paper: Nano- and macroporous materials (aerogels, xerogels, cryogels, etc.)
  • 27 Downloads

Abstract

A facile procedure was developed for the production of Al2O3 aerogels modified with tris(8-hydroxyquinolinato)aluminum complex (AlQ3). The addition of 8-hydroxyquinoline during the stage of alumina lyogel formation was found to increase gelation duration. The translucent monolithic aerogels were obtained by supercritical drying of lyogels in CO2. The composition and properties of aerogels were analyzed using low-temperature nitrogen adsorption, helium pycnometry, IR spectroscopy, UV–visible spectroscopy, luminescence spectroscopy, powder X-ray diffraction, scanning and transmission electron microscopy, and thermogravimetry combined with mass spectrometry. The obtained aerogels had low density (0.15–0.18 g cm−3), high specific surface area (480–550 m2/g), high porosity (90–95%), and showed bright luminescence upon excitation in the UV range.

Keywords

Alumina aerogels Luminescent aerogels Epoxide-assisted gelation Tris(8-hydroxyquinolinato)aluminium 

Notes

Acknowledgements

The authors are thankful to Evgenia A. Varaksina (Moscow Institute of Physics and Technology) for the luminescence measurements. The work was supported by the Russian Science Foundation (project 14-13-01150). This research was performed using the equipment of the Joint Research Center for the Physical Methods of Research of Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences (JRC PMR IGIC RAS).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

10971_2018_4647_MOESM1_ESM.docx (983 kb)
Supplementary Information

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Kh. E. Yorov
    • 1
  • A. D. Yapryntsev
    • 2
  • A. E. Baranchikov
    • 2
  • T. V. Khamova
    • 3
  • E. A. Straumal
    • 4
  • S. A. Lermontov
    • 4
  • V. K. Ivanov
    • 1
    • 2
    • 5
  1. 1.Lomonosov Moscow State UniversityMoscowRussia
  2. 2.Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of SciencesMoscowRussia
  3. 3.Grebenshchikov Institute of Silicate Chemistry, Russian Academy of SciencesPetersburgRussia
  4. 4.Institute of Physiologically Active Compounds, Russian Academy of SciencesChernogolovkaRussia
  5. 5.National Research Tomsk State UniversityTomskRussia

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