An Adsorption Study of Removal of Heavy Metals Using Enivironment Friendly Agro Based Materials



The tremendous increase in the usage of heavy metals over the past few decades resulted in an increased flux of metallic substances in the aquatic environment which requires special concern because of their persistency. The investigation illustrates the removal of heavy metals from waste water by coconut husk based polymer/graph The method of graphene oxide (GO) synthesis involves the single-step reforming of Coconut husk agricultural waste material by oxidation under muffled atmosphere condition.ene oxide composites (CHGO)  which is expected to act as good adsorbent materials.  The graphene oxide (CHGO) and the corresponding  composites PVP/CHGO and PEG/CHGO were characterized by Fourier transform infrared (FTIR), X-ray Diffraction Analysis (XRD) and scanning electron microscope (SEM) analysis. The adsorption study of  Coconut husk Graphene oxide (CHGO) and its composites viz., Polyvinylpyrrolidone (PVP)/ Coconut husk Graphene oxide nanocomposite (PVP/CHGO) and Polyethyleneglycol (PEG)/ Coconut husk Graphene oxide nanocomposite (PEG/CHGO) was carried out for the removal of heavy metals from simulated waste water and results were compared. The performance analysis was carried out as a function of various operating parameters, such as initial concentration of metal ion, adsorbent dosage, contact time, and pH. The studies revealed that materials are effective in removal of heavy metals. The Pseudo-first, Pseudo-second order and Elovich kinetic Models were used to analyse the adsorption equilibrium.

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