Batch Adsorption of Synthetic Dye by Maclura Pomifera, a New Eco-Friendly Waste Biomass Experimental Studies and Modeling

Abstract : The removal of Methylene blue (MB) from aqueous medium using alkaline modified Maclura pomifera (NaOH-MMP) has been studied in this work. Results showed that a pH value of 6 was favorable for the adsorption of MB. Rate constants of pseudo-first-order, pseudo-second-order and nth kinetic model were determined to analyze the dynamic of the adsorption process; they showed that adsorption kinetics followed a pseudo-second-order and nth kinetic models. The Sips isotherm model was found to be the most relevant to describe MB sorption onto NaOH-MMP with a correlation factor R-2 > 0.999. The adsorption capacity of NaOH-MMP was found to be 160 mg g(-1) at 25 degrees C, confirming its biosorbent efficiency for the removal of MB dye from aqueous solutions. Thermodynamic parameters indicated that the MB adsorption onto adsorbent was feasible in nature, spontaneous, and exothermique.
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Submitted on : Thursday, June 6, 2019 - 4:20:57 PM
Last modification on : Tuesday, July 30, 2019 - 5:08:04 PM

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Meryem Bounaas, Abdallah Bouguettoucha, Derradji Chebli, Abdelbaki Reffas, Jose Manuel Gatica, et al.. Batch Adsorption of Synthetic Dye by Maclura Pomifera, a New Eco-Friendly Waste Biomass Experimental Studies and Modeling. International Journal of Chemical Reactor Engineering, De Gruyter, 2019, 17 (4), ⟨10.1515/ijcre-2018-0063⟩. ⟨hal-02149783⟩

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