Photocatalytic Degradation of Congo Red Using Ni-Al/AC Layered Double Hydroxide under UV Light Irradiation
2023
Baba, Christian | Muhammad, Abdulfattah Shehu
AbstractIn this study, the degradation of Congo red (CR) dye was investigated using Ni-Al/AC layered double hydroxide photocatalyst under UV light irradiation. The Ni-Al/AC LDH photocatalyst was synthesized using the co-precipitation method and characterized using various analytical techniques such as FTIR, XRD, SEM, EDXRF, and Band gap energy. The results showed that the photocatalyst had a highly ordered layered structure with good crystallinity and a band gap energy of 4.39nm. Kinetic studies of CR were conducted using Pseudo-first-order and Pseudo-second-order models, with the Pseudo-second-order model providing the best fit.The photocatalytic activity of the Ni-Al/AC LDH was evaluated by studying the degradation of CR dye under UV light irradiation. The results showed that the Ni-Al/AC LDH photocatalyst exhibited high photocatalytic activity towards the degradation of CR dye under UV light irradiation. After 30 minutes of irradiation at a catalyst loading of 0.1 g/L and an initial dye concentration of 10 mg/L, the degradation efficiency of CR reached 91.3%. The results indicate that the Ni-Al/AC LDH photocatalyst could be a promising material for efficient degradation of CR dye in wastewater treatment applications.
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