Back to Search
Start Over
Eu and Tb co-doped porous SiO2 aerogel composite and its luminescent properties
- Source :
- Journal of Photochemistry and Photobiology A: Chemistry. 379:47-53
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- In this study, the Tb3+ and Eu3+ phosphates were directly assembled into the pores of mesoporous SiO2 aerogel matrix by sol-gel method, and (Eu3+-Tb3+) PO4/SiO2 composite was obtained. The prepared material showed gel block structure whose surfaces were distributed a large number of disordered mesoporous. The advantage of the method was that the rare earth elements could be absolutely assembled into the pores of the SiO2 aerogel, which resolved a bottleneck problem of the guest materials assembly quantity and guest materials location in porous host materials. The study provided an effective method for host-guest material preparation. The luminescent characters of the (Eu3+-Tb3+) PO4/SiO2 composite were studied, the prepared material showed a stronger emission of Eu3+ at 594 nm which was distinct with the past reports at 612 nm. The optimal proportion of Tb3+ and Eu3+ was confirmed according to the sample with the strongest emission.
- Subjects :
- Chemistry
General Chemical Engineering
Composite number
Prepared Material
General Physics and Astronomy
Aerogel
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Matrix (chemical analysis)
Chemical engineering
0210 nano-technology
Mesoporous material
Luminescence
Porosity
Co doped
Subjects
Details
- ISSN :
- 10106030
- Volume :
- 379
- Database :
- OpenAIRE
- Journal :
- Journal of Photochemistry and Photobiology A: Chemistry
- Accession number :
- edsair.doi...........88036afb20e7521413f5560f5a6ec307