Activated carbon supported MnO2 for catalytic degradation of reactive black 5

Abstract

In the present work, a commercial activated carbon was impregnated with MnO2 through a facile and efficient one-pot synthesis method. The impregnated carbon was characterized for the Mn content, the textural characteristics, the surface chemistry and the efficiency for removal and degradation of RB5. The MnO2 nanoparticles with an average size of 35 nm, were homogeneously dispersed in the carbon matrix and the BET surface area of the impregnated carbon found 760.77 m3 g−1. The efficiency for removal of RB5 was studied by batch tests under different experimental conditions. The treatment with H2O2 showed efficient removal and superior catalytic performance toward reactive black 5 (RB5) degradation that could be attributed to combined adsorption-degradation processes. The impregnated carbon proved to be an efficient catalyst for the oxidation- degradation of RB5 and presented good stability.