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Abstract
In this work, adsorptions of Methyl tertiary-butyl ether (MTBE) onto two novel adsorbents, i.e. nano-perfluorooctyl alumina was prepared using nano-γ-alumina (nano-PFOALG) and nano-boehmite (nano-PFOALB) as the supports were investigated. The surface areas of the nano-γ-alumina and nano-boehmite were determined as 265.7 and 319.5 m2/g, respectively. The equilibrium adsorption behavior of the nanoadsorbents was studied for adsorption of (MTBE) in a wide range (100–1,750 mg/L) of aqueous phase concentrations. The maximum adsorption capacities were 46.0 and 44.4 mg MTBE/g adsorbent for nano-PFOALG and nano-PFOALB, respectively. The Freundlich, Langmuir, and Brunauer–Emmet–Teller (BET) isotherms were used for modeling of MTBE adsorption on nano-PFOALG and nano-PFOALB from aqueous medium. The experimental results of MTBE adsorption on the surface of nano-PFOAL adsorbents obeyed a type IV van der Waals adsorption trend, which can be modeled best by the BET isotherm up to pore filling concentration.
Acknowledgments
We acknowledge Tabriz Petroleum Refining Company and Iran Nanotechnology Institution for their financial support of the research project. We also are thankful for the Environmental Engineering Research Center of the Sahand University of Technology for their helps during conducting the project.