Ni/Fe-supported over hydrotalcites precursors as catalysts for clean and selective oxidation of Basic Yellow 11: Reaction intermediates determination

► Ni and Fe introduced by incipient wetness and excess impregnation over hydrotalcite. ► Catalytic wet air oxidation in batch reactor for Basic Yellow 11 removal. ► Effect of the catalyst preparation and stability were tested. ► It is the first proposed degradation intermediates and pathway.