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Photoluminescent porous aerogel monoliths containing ZnEu-complex: the first example of aerogel modified with a heteronuclear metal complex
- Source :
- Journal of Sol-Gel Science and Technology. 92:304-318
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- A procedure for the chemical immobilization of a new ZnII–EuIII heterobimetallic complex in the SiO2 aerogel matrix has been developed. In this Zn–Eu complex, a peripheral non-luminescent Zn ion acts as a binder to a silica matrix and prevents direct interaction of rare-earth ions with OH− and NH− groups in the silica matrix, which would have a detrimental effect on the luminescence of lanthanides. The procedure includes the synthesis of complexes, co-gelation of the obtained complex with SiO2 sol, the washing of lyogels, and their subsequent supercritical drying in CO2. The composition and properties of the obtained aerogels were investigated using a low-temperature nitrogen adsorption technique, helium pycnometry, FTIR, Raman, UV–visible, and luminescence spectroscopy, XPS, PXRD, SEM, TEM, TGA combined with mass spectrometry, and small-angle neutron scattering. The aerogels modified with the ZnII–EuIII complex demonstrated strong red luminescence upon excitation with UV light.
- Subjects :
- Photoluminescence
Materials science
Supercritical drying
Aerogel
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
0104 chemical sciences
Electronic, Optical and Magnetic Materials
Biomaterials
Matrix (chemical analysis)
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X-ray photoelectron spectroscopy
Chemical engineering
Materials Chemistry
Ceramics and Composites
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Fourier transform infrared spectroscopy
0210 nano-technology
Luminescence
Raman spectroscopy
Subjects
Details
- ISSN :
- 15734846 and 09280707
- Volume :
- 92
- Database :
- OpenAIRE
- Journal :
- Journal of Sol-Gel Science and Technology
- Accession number :
- edsair.doi...........c861e7804764f2435ce4421eec0d92ff