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Fly Ash Reuse as Mesoporous Ca- and Mg-Zeolitic Composites for the Seclusion of Aniline from Aqueous Solution

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Abstract

This work reuses fly ash, a solid waste from cogeneration as a raw material for remediating water pollution. It presents an adsorption method of secluding aniline from wastewater by mesoporous zeolitic composites CaFZBFA and MgFZBFA synthesized from bagasse fly ash (BFA). Instrumental analyses revealed the transformation of the BFA into mesoporous zeolite composites. And pH-dependent adsorptions study showed the respective performances of the synthesized materials on the adsorption of aniline. Optimal uptakes on both adsorbents were obtained at pH 6. Langmuir isotherm model (\({R}^{2}=0.9937\) and 0.9906 for CaFZBFA and MgFZBFA, respectively) and pseudo-second-order kinetics model (\({R}^{2} = 0.9980\) for CaFZBFA and 0.9944 and MgFZBFA) best represent the adsorption processes. And the maximum monolayer adsorption capacities obtained are 34.130 mg/g and 33.220 mg/g for CaFZBFA and MgFZBFA, respectively.

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  1. Department of Chemistry, Veer Narmad South Gujarat University, Surat, Gujarat, India

    Bhavna A. Shah & Olutayo A. Oluyinka

  2. Department of Science and Humanities, Vidyabharti Trust Polytechnic, Bardoli, Gujarat, India

    Ajay V. Shah

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Shah, B.A., Oluyinka, O.A. & Shah, A.V. Fly Ash Reuse as Mesoporous Ca- and Mg-Zeolitic Composites for the Seclusion of Aniline from Aqueous Solution. Arab J Sci Eng 44, 289–304 (2019). https://doi.org/10.1007/s13369-018-3596-1

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