SYNTHESIS AND CHARACTERIZATION OF CuO/g-C3N4 MATERIAL FOR DEGRADATION OF DIRECT FAST SCARLET 4BS DYE IN WATER

Abstract

Currently, in the context of the shortage of freshwater sources are increasingly, the problem of water pollution is is becoming extremely serious that needs to be solved. Therefore, many methods have been applied to remove dyes in water, and the photocatalytic method is the most effective. In this study, the photocatalyst material CuO/g-C3N4 was easily synthesized by hydrothermal method and calcined from melamine strictly controlled hydrothermal time, temperature conditions. The characterization results (SEM, EDX and FT-IR methods) show that CuO/g-C3N4 has been successfully synthesized, with bandgap energies suitable for photocatalysis under visible light irradiation (approx 2,6 eV) was determined by the UV-Vis DS method. The treatment results of the obtained materials also show high efficiency in removing Direct Fast Scarlet 4 BS (DFS-4BS) dye from water under visible light irradiation. The CuO/g-C3N4 material showed the best DFS-4BS treatment, with an efficiency of up to 92,8% at pH= 7 in 150 mins.