Abstract
Our main interest in this work is in the synthesis and improvement of the physical properties of TiO
2
-based nanocomposites modified by coupling to Zn
2
SiO
4
:Mn (
ZS:M
) nanoparticles. The micro-structural characterizations carried out by using X-ray diffraction
(XRD)
and transmission electron microscopy
(TEM)
techniques of various TiO
2
-ZS:M (
Ti-ZS:M
) samples at different temperatures revealed the formation of the anatase phase. The optical properties of TiO
2
modified by ZS:M nanoparticles shows a shift in absorption band toward UV region reflecting a significant an increase in the energy band gap for anatase phase at 3.36 eV, which is larger than the 3.06 eV found for the Dugussa P25 TiO
2
. In this work, the influence of the annealing temperature on the microstructural, physico-chemical characteristics of the different samples is presented and their correlation with their photoluminescence in the visible spectral region has been investigated.