MnCo2O4 nanostructures: hydrothermal and co-precipitation synthesis, first investigation and optimization for photocatalytic degradation of ES
摘要
MnCo2O4 (manganese cobaltite) nanostructures are synthesized through two chemical procedures, such as co-precipitation, and hydrothermal. Both methods led to the synthesis of the pure MnCo2O4. These materials are used as photocatalyst for Eosin (ES) degradation under UV light irradiation. We investigate the effects of some agents on the purity and applications of the photocatalysts. The photocatalytic activity gradually increases with decreasing dye concentration and increasing the photocatalyst dosage up to 30 mg. The degradation of ES with 10, 20, and 30 ppm concentrations occurs at 84.35%, 75.76%, and 54.91%, in the presence of MnCo2O4, respectively. 30 mg of MnCo2O4 shows an excellent degradation activity for ES (~ 94%). The optimal sample with 30 mg MnCo2O4 (sample 9) as photocatalyst and 10 ppm concentration of ES at the basicity condition presents higher degradation percent (94.55%). MnCo2O4 exhibits excellent catalytic activity compared with other similar photocatalysts. These findings highlight the potential of this material for practical application in wastewater treatment.