Affiliation:
1. Federal University of Campina Grande
2. Universidade Federal de Campina Grande
3. Federal University of Pernambuco
Abstract
ZnAl1.,9Eu0.1O4nanoparticles were functionalization used of the 3-aminopropyltrimethoxysilane silane and chitosan, in 5:1 proportion of the nanoparticles to chitosan, in order to obtain hybrid materials for the development of luminescent markers. The samples were characterized by XRD, FTIR, TEM, excitation and emission. After functionalized the nanoparticles showed formation of crystalline phase of spinel and chitosan. TEM results have revealed that the samples presented before particle size less than 100 nm and after functionalization was observed that the particle size increases. Emission peak of Eu centered at 614 nm, corresponding to the transition5D07F2. Nanoparticles before and after functionalization showed the spectral lines characteristics of Eu ion5D07Fjwhere (J = 0,1,2,3,4). After functionalization the sample presented an increase of luminescence intensity.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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