Process optimization of superior biosorption capacity of biogenic oyster shells nanoparticles for Congo red and Bromothymol blue dyes removal from aqueous solution: Response surface methodology, equilibrium isotherm, kinetic, and reusability studies

• Main Authors: Adeleke A.O., Omar R.C., Katibi K.K., Dele-Afolabi T.T., Ahmad A., Quazim J.O., Amusa A.A., Alshammari M.B.
• Other Authors: 57194067040
• Format: Article
• Published: Elsevier B.V. 2025
• Subjects: Azo dyes; Biosorption; Calcite; Calcium carbonate; Escherichia coli; High resolution transmission electron microscopy; Isotherms; Kinetics; Medical applications; Nanoparticles; Optimization; Reusability; Scanning electron microscopy; Shells (structures); Surface properties; Synthesis (chemical); Wastewater treatment; X ray diffraction analysis; Blue dyes; Bromothymol blue; Congo red; Initial concentration; Modeling; Oyster shell; Oyster shell waste; Process optimisation; Response-surface methodology; Thermodynamic energy; Adsorption

The essential use of natural materials or microbial biomass for effective dye removal from water, combined with simultaneous antimicrobial activity, is crucial for environmental and biomedical applications. Functionalized oyster shell waste nanoparticles (OY-NPs) were synthesized and utilized for ef...