The oxidation reaction of 2-nitroaniline in the presence of some supported catalysts and hydrogen peroxide

الملخص EN

Different supported catalysts were studied in the presence of hydrogen peroxide as a method for oxidation of 2-nitroaniline which is a hardly degradable aromatic derivative.

Among some transition metal ions, supported catalysts of (Ferro chloride) immobilized in silica gel is selected for detailed study.

The effect of pH, the initial concentration of hydrogen peroxide, the amount of catalyst and the influence of temperature were studied.

Optimum conditions for the wet oxidation of this organic pollutant were investigated.

Experimental kinetic study was carried out, using visible spectrometry techniques and Chemical Oxygen Demand (COD).

It was found from the observed data that the oxidation rate is a first order kinetics with respect to pollutant / s concentration (COD), hydrogen peroxide concentration and the amount of catalyst used per treated water volume.

The reaction rate was dependent on the immobilized transition metal, temperature and the pH of the reaction media.