Adsorption of 2 chlorophenol from water using magnetic activated carbon attained palm fibers and its isotherm and kinetic insight

Abstract

In this evaluation, magnetic activated carbon from palm fibers (MAC-PFs) were synthesized by chemical co-precipitation and used to adsorb 2-chlorophenol (2CP) from aqueous solutions utilizing a batch system. The physicochemical characteristics and morphology of the nanoparticles were analyzed using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Brunauer-Emmett-Teller (BET) and Fourier transform infrared spectroscopy (FTIR) analysis. To identify the optimal conditions for adsorption in a discontinuous system, the role of significant factors such as pH, reaction time, dosage of MAC-PF, and the initial concentration of 2CP was systematically examined. The findings revealed that over 90 of 2CP was removed using 1 g L-1 of MAC-PF at an initial concentration of 150 mg L-1 and an optimal pH of 6. According to the isothermal data for 2CP, its uptake was found to follow the Langmuir model (R2 = 0.9582). Under the ideal conditions, the maximum adsorption capacity of the MAC-PFs reached 303 mg g(-1). Kinetic modeling revealed that the adsorption process of 2CP on MAC-PFs adheres to a pseudo-second order kinetic model (R-2 = 1). Also, reusability efficiency of MAC-PF was determined for 5 cycles. These results suggest that MAC-PFs are highly effective and promising adsorbent for the removal of 2CP.