Investigation on the sonocatalytic degradation of nitrobenzene using heterogeneous nanostructured catalysts in absence and presence of surfactant

摘要: Abstract Because of the extensive use and excessive release various NB, economical efficient methods for treatment wastewater cleanup petrochemical compounds are needed. This study focused on sonocatalytic degradation NB in aqueous solution assisted with H2O2 oxidant nanostructured metal oxide catalysts, prepared absence CTAB (series I), (Fe2O3-I, CuO-I, NiO-I, Co3O4-I) catalysts presence II), (Fe2O3-II, CuO-II, NiO-II, Co3O4-II). The physicochemical properties these were investigated via X-ray powder diffraction (XRD), transmission electron microscope (TEM), scanning (SEM), point zero charge (PZC). potential feasibility US/nano I or series II)/H2O2 systems was measured by GC analysis at regular time intervals. Otherwise, some operational parameters such as ultrasonic irradiation time, pH value, concentration, different weights nano-sized leaching reaction kinetics had been examined. It found that can effectively assist oxides I) more efficiency effect changed order (Fe2O3 > CuO > NiO > Co3O4). Therefore, micellar to upgrade economic aspect degradation.