عنوان مجله
|
Journal of Nanostructures
|
چکیده
|
Highly meso-porous Pt contained γ-Al2O3 nanostructure was prepared by a
combined sol gel-pyrolysis method in the presence of polyvinylpyrrolidone
and Pluronic p123 as surfactant. The surface of the prepared nanostructure
was decorated with 1-Butyl-3-methylimidazolium hexafluorophosphate
([BMM]PF6) ionic liquid to enhance the sorption capacity and prevent
the poisoning of the catalytic active sites. The catalyst was characterized
by X-ray diffraction powder (XRD), Transmission Electron Microscopy
(TEM), Energy Dispersive X-ray (EDX), and Brunauer–Emmett–Teller
surface analysis (BET) methods. The XRD pattern and the results of
elemental analysis well confirmed the crystalline phase of gamma-alumina
and the presence of Pt nanoparticles on the surface. Decolorization of
Anazolene Sodium (AS) dye compound as a typical wastewater was carried
out using H2O2 as oxidative agent and the results showed that the prepared
nanostructure had promising catalytic activity. The results of the recycling
experiments showed that [BMIM]PF6/Pt/γ-Al2O3 is more promising than
Pt/γ-Al2O3 which points out the role of ionic liquid layer on the surface
|