Explore the elimination of toxic dye using Bio-Synthesized cerium oxide nanoparticles derived from Morinda citrifolia leaf extracts

•An eco-friendly and cost-effective procedure for cerium oxide nanoparticles.•Catalytic degradation of methyl red and eosin dye were investigated.•Investigation of Antibacterial Activity on cerium oxide nanoparticles. Due to their distinct physical characteristics, nanoparticles (NPs) with a mean size of 1 to 100 nm are of significant interest to numerous disciplines and industries. Because of improper disposal of pigments and effluents that enter watercourses, certain businesses are increasingly important contributors to hydrographic pollution. Due to its carcinogenic properties and low biocompatibility, dye degradation poses a severe risk to people, animals, and aquatic environments. This experiment used morinda citrifolia leaf extract as a reduction and protective colloid to break down pigments like methyl red and haematoxylin and make cerium nanoparticles. Cerium oxide nanoparticles demonstrated a surface plasmon maxima at 430 nm in the UV zone. The XRD examination demonstrated the synthesis of cerium nanocrystals. Cerium nanocrystal spheres were visible in the results of the photoluminescence study. All emission spectrum levels fall between 447 and 463 nm and are produced by various defects, including displacement, necessary for quick oxidative metabolism. CeO2 NPs emit the epiphenomenon at 487 nm due to the interfacial flaw. According to SEM data, mineral grains have an average crystallite size of 30 nm. The rate of dye elimination was measured using ultraviolet-visible spectroscopy between 200 and 600 nm. The peak value for haematoxylin was obtained between 420 and 500 nm, whereas the most excellent absorbance for methyl red was observed at 380 nm. [Display omitted]