Tetracycline removal from aqueous solution by biochar derived from algae and modified with MnMoO₄: effects of operating parameters, isotherm, kinetic, and thermodynamic study
2022
Ajam, Mohammad | Ehteshami, Majid | Boudaghpour, Siamak | Mirbagheri, Seyyed Ahmad | Kafil, Mahboubeh
The aim of the present study is to improve the adsorption of tetracycline (TC) onto biochar of microalgae modified by nanocomposite of MnMoO₄ (MM40BC60). The synthesized nanocomposite was characterized by Scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET) surface area, Fourier transforms infrared (FTIR) spectroscopy to investigate the morphology, surface area, pores and the functional groups of MM40BC60, respectively. The effect of various parameters including initial pH, TC concentration, and temperature on the adsorption performance of TC to the adsorbent was evaluated with considering kinetics, isotherms, and thermodynamics models. The adsorption of TC on MM40BC60 shows good agreement with the pseudo-second-order kinetic and the Langmuir isotherm models. Results of the thermodynamic study showed that the adsorption process was a spontaneous and endothermic reaction in nature.
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