Immobilizing of zero-valent iron in mono- and bi-metallic systems on the bentonite clay surface as new nanocatalyst were synthesized and used to degrade model acidic dyes from aqueous media. The Fourier-transform infrared spectroscopy, scanning electron microscopy-energy dispersive X-ray spectroscopy, transmission electron microscopy, X-ray diffraction, and Brunauer-Emmett-Teller analysis were ...

A novel magnetite nanoparticle-based heterogeneous acidic catalyst [Fe3O4@SiO2@Am-PPC-SO3H] [HSO4] was successfully prepared and characterized by SEM, EDX, TGA, VSM and FT-IR techniques. The magnetically retrievable and sustainable catalyst was investigated in the reaction of aldehyde and o-aminophenol for the synthesis of benzoxazoles. The...

Nano-graphene oxide was synthesized by the oxidation of graphite powders. The structural nature of the nano-graphene oxide was characterized by a variety of techniques including XRD, TEM, FT-IR and UV/Vis. The functional groups on its basal planes and edges of nano-grahene oxide play important role in catalytic activity. The catalytic activity of nano-graphene oxide was investigated on Crossed-...

A novel magnetite nanoparticle-based heterogeneous acidic catalyst [Fe3O4@SiO2@Am-PPC-SO3H] [HSO4] was successfully prepared and characterized by SEM, EDX, TGA, VSM and FT-IR techniques. The magnetically retrievable and sustainable catalyst was investigated in the reaction of aldehyde and o-aminophenol for the synthesis of benzoxazoles. The...

The fabrication of iron and carbide nanoparticles (NPs) for catalytic reactions such as the growth carbon nanotubes (CNTs) compete with challenge covering a wide range substrates perfect control NP reactivity. We present in this work novel atomic layer deposition (ALD) process to grow Fe/Fe 3 C thin films over silica flat substrates. depositions were carried out exposing surface through various...

The ozonation reaction in a bubble column reactor (BCR) has been widely used the removal of phenol from wastewater, but efficiency this type is limited because low ozone solubility and reactivity system. In present study, degradation BCR was enhanced by using α-Al2O3 as packing material ZnO nanocatalyst. diameter height were 8 cm 180 cm, respectively. gas distributor designed to include 52 hole...