Study on the adsorption of MnO4- ions onto GO/PVA/Fe3O4 composite

Thu Le Dieu, Hoang Tran Vinh

Abstract


In this study, MnO4- ions are adsorbed onto GO/PVA/Fe3O4 composite. Results showed that after 18 hours, the adsorption process gets equilibrium with the adsorption capacity is 187.8 mg.g-1, the mass of adsorbent is 0.005 g in 10 mL of 200 mg.L-1 MnO4- ions solution. The influence of temperature was also investigated and with the increasing of temperature, the adsorption capacity also increases, so the adsorption is endothermic. The sorption process obeys pseudo-first-order kinetic.

Keywords


adsorption; poly vinylalcohol; MnO4-

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References


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DOI: https://doi.org/10.51316/jca.2021.037

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