Fabrication of silica/calcium alginate nanocomposite based on rice husk ash for efficient adsorption of phenol from water
Manal A. Khoj
Abstract
) at pH 7 and 120 min as equilibrium adsorption time. Adsorption of phenol onto the solid adsorbents fit well with a nonlinear Langmuir isotherm with favorable adsorption. Kinetic and thermodynamic studies prove that the adsorption process follows a pseudo-second-order kinetic model, endothermic process, physical, and spontaneous adsorption. Sodium hydroxide is effective in desorbing 94% of the loaded phenols, according to desorption investigations. Solid reusability tests showed that, after seven cycles of phenol adsorption/desorption, RSG lost only 8.8% of its adsorption activity.
Topics & Concepts
HuskNanocompositeAdsorptionCalcium alginatePhenolChemical engineeringFabricationChemistryChitosanCalciumNuclear chemistryMaterials scienceNanotechnologyOrganic chemistryBotanyPathologyEngineeringAlternative medicineMedicineBiologyAdsorption and biosorption for pollutant removalFluoride Effects and RemovalMesoporous Materials and Catalysis