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The photocatalytic activities of CuFe₂O₄ photocatalyst for removing organic dye from wastewater under visible light irradiation have been investigated. Cupper ferrite (CuFe₂O₄) nanoparticles have been successfully synthesized via a nitric acid assisted sol–gel method. The photocatalytic evolution of CuFe₂O₄ has been achieved over the organic dye (Methylene Blue, MB) degradation and the activity is dependent on the synthesis method. The results show that the photocatalytic activity and visible light response to CuFe₂O₄ is higher than some other photocatalysts used for dye reduction. In addition, it is evident from the literature survey that various low-cost adsorbents are highly potential for the removal of various aquatic pollutants still suffers from drawbacks for commercial application.  The present work has been proposed to circumvent these limitations by exploring the organic dye removal from wastewater over CuFe₂O₄ photocatalyst under visible light irradiation.