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[Display omitted] • Application of hydrophilic surfactant F-127 (pluronic) in the fabrication of cobalt ferrite without using hydrothermal process. • Solar active F127 aided CFO has five times greater degradation than that of CFO without a polymer template. • Fenton-like degradation of RY 86 was mediated by •OH. • Potent antibacterial agent and cytotoxic to MCF-7 breast cancer cells at low dose of µg/mL. • Breakthrough for the degradation of numerous emerging contaminants in water. To our surprise, we effectively excelled in developing the hydrophilic, non-ionic and water soluble triblock copolymer surfactant F127 (pluronic) aided spinel cobalt ferrite (CFO) nanoparticles. The crystalline nature and surface morphology of F127 aided CFO nanoparticles have been confirmed laboriously by XRD, HR-TEM, DLS, FT-RAMAN, FT-IR, UV-DRS, and SEM-EDX. SEM confirms undeclared rod-like structure and HR-TEM supports a shape similar to quasi-spherical morphology. The band gap investigation report that the Eg value of F127 aided CFO is around 1.24 eV. We found the fact that, in the UV/solar light degradation of hazardous Reactive Yellow 86 (RY 86), the photocatalytic activity of F127 aided CFO nanoparticles was accelerated by the presence of H 2 O 2. F127 is a surfactant that played a key role in the enhanced activity of F127 aided CFO nanoparticles. By using an external magnetic field, the catalyst can be recovered from the fluid medium and thereby reused. The feasible mechanism for active liquid phase photodegradation of RY 86 has also been developed. Therefore, we assure that the novel spinel F127 aided CFO nanoparticles will shed more light for the wastewater treatment system because of its effective photocatalytic and reusable behavior. In conjunction, the antibacterial function and cytotoxicity are also performed. [ABSTRACT FROM AUTHOR]

Photocatalytic activity of Au-TiO 2 /ZnFe 2 O 4 in Ciproflaxacin mineralization. [Display omitted] • Successful synthesis of Au-TiO 2 /ZnFe 2 O 4 nano-heterojunction by a facile hydrothermal method. • Photocatalytic activity of Au-TiO 2 /ZnFe 2 O 4 in Ciproflaxacin mineralization remains unchanged after 5th cycle of reusability. • Such nano-heterostructure presents inhibited e–/h+ recombination. • Photocatalytic degradation mechanism was proposed. • This breakthrough in industrial wastewater treatment is set to become a significant milestone in this field. This study presents the development of an Au-TiO 2 /ZnFe 2 O 4 nanocomposite photocatalyst through a hydrothermal method and used for the mineralization of ciprofloxacin under natural solar light exposure. The nanocomposite's crystalline structure, nanostructure, and optical characteristics were thoroughly investigated using XRD, FT-IR, XPS, SEM, EDX, ECM, HR-TEM, UV–vis DRS, and PL analysis. The XPS analysis confirmed the successful synthesis of the Au-TiO 2 /ZnFe 2 O 4 composites.Notably, the Au-TiO 2 /ZnFe 2 O 4 composite exhibited significantly enhanced photocatalytic efficiency compared to both TiO 2 /ZnFe 2 O 4 and TiO 2 alone in the degradation of ciprofloxacin. The improved performance is attributed to the introduction of Au nanoparticles, which act as electron traps, facilitating efficient charge separation and increasing light absorption in the visible region.Furthermore, the synthesized catalyst displayed remarkable stability over five cycles and could be easily recovered and reused without loss of efficacy. This work demonstrates the potential of the Au-TiO 2 /ZnFe 2 O 4 nanocomposite as a promising and sustainable photocatalyst for the degradation of ciprofloxacin in water treatment applications under solar light exposure. [ABSTRACT FROM AUTHOR]