Performance Photocatalytic Degradation of Methomyl onto Composite Graphene Oxide/Bismuth Vanadate (GO/BiVO₄) Nanoparticle

Abstract

Graphene oxide (GO) powder was synthesized by modified Hummer’s method. Bismuth vanadate (BiVO4) nanoparticle was synthesized by solvothermal method at 100 and 200°C for 3h. Composite graphene oxide and bismuth vanadate (GO/BiVO4) nanoparticle were synthesized by mixed oxide method in weight ratio of 0.20:1.00. The physical and chemical properties were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), energy dispersive X-ray spectrometer (EDS) and surface area analyzer (BET). The photocatalytic degradation of methomyl performance was determined by high performance liquid chromatograph (HPLC). Composite GO/BiVO4 nanoparticle at 200°C for 3h was the highest photocatalytic degradation of methomyl.

Recent Development of Photocatalytic Application Towards Wastewater Treatment

“…The analysis revealed an excellent photocatalytic decomposition rate of carbofuran under solar-light irradiation in not more than 120 min. Photoreduction of methomyl insecticide in water was observed by Pookmanee and his co-workers [133] using GO/BiVO4 nanocomposite, which displayed the highest photo removal efficiency of methomyl at 200°C for 3 h. Sun et al [134] researched a novel technique for preparing MCN450/HPW photocatalyst, developed by calcinating carbon nitride (CN) at 450°C with formaldehyde along with the introduction of tungstophosphoric acid (HPW) for the decomposition of two typical insecticides, Imidacloprid and Acetamiprid. The results showed a much better removal rate constant of imidacloprid and acetamiprid, about 6.4 and 11 times, respectively, than that of the respective nanocatalysts.…”