dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Universidade Federal de São Carlos (UFSCar) | |
dc.date.accessioned | 2018-12-11T16:52:59Z | |
dc.date.available | 2018-12-11T16:52:59Z | |
dc.date.created | 2018-12-11T16:52:59Z | |
dc.date.issued | 2018-01-01 | |
dc.identifier | Dalton Transactions, v. 47, n. 16, p. 5771-5779, 2018. | |
dc.identifier | 1477-9234 | |
dc.identifier | 1477-9226 | |
dc.identifier | http://hdl.handle.net/11449/170927 | |
dc.identifier | 10.1039/c8dt00560e | |
dc.identifier | 2-s2.0-85045926096 | |
dc.identifier | 3349586880746735 | |
dc.description.abstract | CdFe2O4 nanoparticles of around 3.9 nm were synthesized using the coprecipitation method and protected by a silica layer. The nanoparticles were mixed with a coacervate and transformed into phosphate glasses with 1, 4 and 8% in mass of nanoparticles by the melt-quenching method. TEM images confirm that the nanoparticles were successfully incorporated into the matrix without inducing crystallization. 31P NMR and Raman spectral analyses show that new P-O-Si bonds are formed in the glasses containing nanoparticles. The glass transition increases as a function of the nanoparticle content due to an increase in the connectivity of the phosphate glass chains. The UV-Vis spectra show bands at 415 and 520 nm assigned to Fe3+ ions and at 1025 nm, characteristic of Fe2+ ions, indicating that some of the nanoparticles dissolve during the melting process. The sample with 8% CdFe2O4 presents a paramagnetic behavior. The glasses obtained are transparent, non-hygroscopic and possess enormous thermal stability which is important for the production of optical devices. | |
dc.language | eng | |
dc.relation | Dalton Transactions | |
dc.relation | 1,306 | |
dc.relation | 1,306 | |
dc.rights | Acesso restrito | |
dc.source | Scopus | |
dc.title | Phosphate glasses: Via coacervation route containing CdFe2O4 nanoparticles: Structural, optical and magnetic characterization | |
dc.type | Artículos de revistas | |