Efficient photodegradation of neutral red chloride dye in aqueous medium using graphene/cobalt-manganese oxides nanocomposite

Authors : KHALID SAEED, IDREES KHAN

Pages : 391-398

View : 18 | Download : 10

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Graphene/cobalt-manganese oxides nanocomposites were prepared from their precursor through chemical reduction where NaOH was used as a reducing agent. The obtained GNs/Co-Mn nanocomposites were used as photocatalyst for the photodegradation of Neutral Red Chloride insert ignore into journalissuearticles values(NRC); dye in aqueous solution under sunlight as a function of time and catalyst dosage. The morphology and photodegradation study was carried out using scanning electron microscopy insert ignore into journalissuearticles values(SEM); and UV-VIS spectrophotometry, respectively. The SEM image showed the presence of Co-Mn nanoparticles on the surface of GNs, which were also confirmed by energy dispersive X-ray analysis. The photodegradation study of NRC showed that the degradation of dye increased with an increase in irradiation time, and 94% of dye was degraded within 5 min by GNs/Co-Mn. Photodegradation was also carried out with recovered catalyst, which degraded about 90% of dye within 5 min. The effect of catalyst dosage on the degradation of dye was also studied.
Keywords : Graphene nanosheets, photodegradation, Neutral Red Chloride, photocatalyst