Abstract
Water pollution from dyes in wastewater is a critical global issue, as these stable organic dyes resist biodegradation, posing serious threats to aquatic ecosystems. To address this situation, advanced photocatalysts have been developed. Here, NiFe(2)O(4)/g-C(3)N(4) was synthesized for the photocatalytic degradation of Rhodamine B (RhB) dye in the presence of H(2)O(2) and visible light. Physicochemical analysis results showed NiFe(2)O(4) nanoparticles dispersed in the g-C(3)N(4) matrix, with an upward trend in the saturation magnetization of CNFx as NiFe(2)O(4) content rose. The surface area of CNF30 was 62.3 m(2) g(-1), outperforming both NiFe(2)O(4) (23.2 m(2) g(-1)) and g-C(3)N(4) (48.5 m(2) g(-1)). NiFe(2)O(4)/g-C(3)N(4) could be reused up to four cycles, and efficiently catalyzed the degradation of nearly 98% RhB dye, showing a decreased rate of up to 95% COD. Through scavenger studies, the main role of ˙OH was demonstrated. Therefore, highly efficient and recyclable NiFe(2)O(4)/g-C(3)N(4) can be a potential photocatalyst for degradation of dyes.