Abstract
Graphene-oxide/alumina (GO/Al2O3) nanocomposite was synthesized and applied for the removal of phosphate from water through adsorption. Various parameters like the influence of adsorbent dose, adsorption time, solution pH, and initial phosphate concentration on the phosphate removal capacity were examined. It was observed that the second-order kinetics model fitted better compare to the first-order kinetics. The adsorption isotherm was best fitted with Langmuir isotherm compare to Freundlich isotherm. The GO@Al2O3 nanocomposite showed maximum phosphate adsorption capacity 33.2 mg/g at pH 6 and room temperature 30 °C.The new phosphate adsorbents can be produced in a variety of structures using a simple technique and are likely to be applied to industrial applications in phosphate contaminated wastewater management.
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