The amputation of phosphate anions by cobalt oxide nanoparticles doped functionalized nanocomposites from wastewater

Abstract

As a novel adsorbent to removal phosphate from water, Co3O4 magnetic nanoparticles functionalized with zeolite-A-@silica nanocomposites were created. The produced adsorbent was evaluated for phosphate removal efficiency using batch adsorption tests, as well as X-ray diffractometry (XRD), scanning electron microscopy (SEM), EDX, BET, and FT-IR. The synthesized adsorbent with a BET (Brunauer–Emmett–Teller(BET) surface area of 8.367 m2/g, porous zeolite-A, was successfully constructed with Co3O4 and nanosilica, according to characterization results. The newly created adsorbent performed incredibly well at adsorbing phosphate; according to the Langmuir model, it had a maximum adsorption capacity of 344.83 mg/g. The adsorption occurred quickly, and the pseudo-first-order kinetic model provided the greatest fit for the kinetic data. As the pH of the solution increased (2 to 10), the elimination of phosphate reduced. The experimental results indicated negative ΔG, negative ΔH, and positive S, suggesting the exothermic and spontaneous process of PO4-3 adsorption on synthesized adsorbents.