Activity and stability of Ni supported activated carbon for catalytic ozonation of p-chlorobenzoic acid

摘要

@@1. Background of the research Heterogeneous catalytic ozonation, a novel alternative to traditional AOPs, has received wide interest as a promising technology for removing refractory organic pollutants in water. Activated carbon presents a large surface area where organic pollutants can be adsorbed, while ozone readily destroys adsorbed aromatic molecules, helping to regenerate activated carbon adsorption capacity. p-chlorobenzoic acid (p-CBA) is an important intermediate for pesticides, pharmaceutics and dye. Due to its bio-recalcitrant property, p-CBA accumulates in the environment as intermediate during biodegradation of chlorinated aromatics like polychlorinated biphenyls. In the present work, p-CBA was chosen as a model compound to analyze catalytiC activity of activated carbon prepared from coconut hull and Ni supported activated carbon (Ni/AC) catalyst.