首页|Core shell Fe3O4@TiO2/silica aerogel nanocomposite; synthesis and study of structural,magnetic and photocatalytic properties
Core shell Fe3O4@TiO2/silica aerogel nanocomposite; synthesis and study of structural,magnetic and photocatalytic properties
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NSTL
In this work,magnetic Fe3O4@TiO2 nanospheres supported by a mesoporous silica aerogel substrate were synthesized using simple combining procedure of sol-gel and ultrasound assisted reflux technique for photo-catalytic activity.The characteristics study of the as-synthesized ternary nanocomposite showed highly dispersion and covering of the Fe3O4@TiO2 nanoparticles on the silica aerogel.The hydrophobic porous silica aerogel was prepared using industrial diatomite earth(DE)as a silica source by a sol-gel procedure under ambient pressure drying.The specifications results of the resulting silica aerogel revealed a fine particulate morphology with an average size of 26 nm,a low density of about 0.85 g/cm~3 and a good degree of porosity with a BET surface area of 572 m~2/g.In addition,the structural and morphological studies of the prepared Fe3O4@TiO2 also represented the formation of a pure Fe3O4@TiO2 phase with a core shell spherical morphology and an average particle size of 22 nm.The introduction of the Fe3O4@TiO2 on the silica aerogel nanoparticles led to increase the particle size to 38 nm and decrease of BET surface area to 347 m~2/g confirming the formation of Fe3O4@TiO2/silica aerogel nanocomposite.The photocatalytic activity of the prepared ternary nanocomposite was also studied for the removal of tetracycline(TC)as an organic pollutant from water under visible light in details.
NSTL
