Abstract
Sodium-cerium molybdate - NaCe(MoO4)2 - crystals were synthesized by the
conventional hydrothermal method at 150 degrees C without using organic
additives or surfactants. This material was characterized by X-ray
diffraction (XRD), Raman and Fourier-transform infrared (FT-IR)
spectroscopy, scanning electron microscopy (SEM), energy dispersive
spectroscopy (EDS), UV-vis diffuse reflectance and zeta potential. The
XRD pattern showed that the NaCe(MoO4)(2) crystallizes in a
scheelite-type tetragonal structure without secondary phases, as well as
Raman and FT-IR spectroscopy confirm the formation of the NaCe(MoO4)(2)
tetragonal. SEM images show that the obtained samples have a truncated
octahedral morphology with an average side length of similar to 1.2 mu m
and high uniformity. The removal and degradation of Remazol Brilliant
Blue (RB) and Methylene Blue (MB) dyes under visible light irradiation
were analyzed, showing that the NaCe(MoO4)(2) microcrystals exhibit
favorable performance for the removal and/or degradation of these dyes,
especially in the MB case.
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