Biomass-derived active carbon (AC) modified NiOphoto-catalyst for efficient photo-catalytic water splitting and degradation of Methylene Blue Dye under visible light

Abstract

The goal of this study is to synthesize an effective photo-catalyst based on NiO-AC with a different NiO/AC weight ratio, photo-catalysts synthesized were applied to the water-splitting process to produce hydrogen and oxygen. It also investigated how various operating parameters, such as the weight ratio of NiO/AC, the irradiation time, and the mass of NaOH, affected the water-splitting efficiency over the NiO-AC photo-catalyst. According to the findings, the optimal weight ratio of NiO/AC is 2/8 to achieve the maximum productivity of both oxygen and hydrogen. Furthermore, it demonstrates its excellent performance in the coupled splitting water and MB dye degradation, providing a thorough and incredibly quick photo-degradation coupled with 20 ppm of MB dye. Further more, it demonstrates its excellent performance in the combined splitting water and dye degradation, offering the maximum levels of oxygen and hydrogen productivity while enabling a complete and rapid photo-degradation in the presence of 20 ppm MB dye. Key words:Water splitting, photo-catalyst, M-ethylene Blue dye, activated carbon, olive seeds.