Abstract
Abstract The present work aimed to synthesize Graphene oxide impregnated chitosan–PVA hydrogel nano polymer and its application to remove Congo red dye present in solution. Adsorption of dye on GO fabricated hydrogel polymer was conducted in batch system. Prepared Graphene oxide reinforced hydrogel polymer (GORHP) was characterized by analyzing FTIR and SEM. Swelling response of synthesized polymer composite were investigated at different pH. Final concentrations of dye in solution and adsorption capacities of adsorbent at various experimental conditions (adsorbent mass, solution pH and initial adsorbate concentration in solution) were evaluated. At pH 2, dye adsorption efficiency was found as 88.17%for 20 mg/L of Congo red solution using 6g/L dose at 140 rpm rotation speed and at neutral pH condition it was ≃ 81%. Different adsorption Isotherm models were analyzed mathematically. Kinetic study was performed and evaluated by following different mathematical model. Pseudo second order kinetic model gave better agreement for experimental and model value of q e . Results inferred that this synthesized polymer composite may be an efficient adsorbent for dye removal. The correlation between the independent variables associated with Congo red dye adsorption and the dependent parameters ware established by analyzing ANN model.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
