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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Synthesis and characterization of ordered mesoporous silica containing di-ureasil hybrid/phosphotungstic acid and Eu3+

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Cavalcante, C. T. [1] ; Molina, C. [1] ; Martins, T. S. [1]
Total Authors: 3
[1] Fed Univ Sao Paulo UNIFESP, Deparment Chem, Diadema, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS; v. 30, n. 18, SI, p. 16903-16909, SEP 2019.
Web of Science Citations: 0

Multifunctional composite (MFC) di-ureasil hybrid synthesized by sol gel method containing phosphotungstic acid (PWA) and Eu3+ ions have been successfully incorporated into mesoporous silica (SBA-15) by post-synthesis method. MFC were characterized by Fourier transform-infrared spectroscopy (FTIR), small angle X-ray scattering (SAXS), nitrogen adsorption-desorption (NAI), thermogravimetric and differential thermal analysis, transmission electron microscopy (TEM) and also photoluminescence. FTIR showed that both di-ureasil and PWA were incorporated into the mesoporous silica. NAI, TEM and SAXS confirmed the incorporation of the PWA and di-ureasil into the mesoporous of SBA-15. Composites are thermal stable at about 240 degrees C and photoluminescence has demonstrated that Eu3+ ions were successfully entrapped and occupies local environment with low symmetry. (AU)

FAPESP's process: 12/02708-8 - Photochromic hybrid films on flexible substrate obtained by sol gel process deposited by inkjet printer
Grantee:Celso Molina
Support type: Regular Research Grants