This paper shows the using of commercial coconut shell activated carbon (CCS-AC) as an alternative adsorbent for the removal of methylene blue (MB) from aqueous solution. The physicochemical properties of the CCSAC were undertaken using Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and pH Point of Zero Charge (pHpzc) method. Batch adsorption experiments were conducted to studThis paper shows the using of commercial coconut shell activated carbon (CCS-AC) as an alternative adsorbent for the removal of methylene blue (MB) from aqueous solution. The physicochemical properties of the CCSAC were undertaken using Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and pH Point of Zero Charge (pHpzc) method. Batch adsorption experiments were conducted to study the influence of adsorbent dosage (0.02 – 0.50 g), pH (3 – 10), MB concentration (25 – 400 mgL-1 ) and contact time (0 – 36 hours) on the adsorption of the MB. The kinetic adsorption was well described by the Pseudo Second Order model and the Langmuir model described the adsorption behavior at equilibrium. The maximum adsorption capacity (qmax) of CCS-AC obtained was 149.25 mg/g at 303 K. y the influence of adsorbent dosage (0.02 – 0.50 g), pH (3 – 10), MB concentration (25 – 400 mgL-1 ) and contact time (0 – 36 hours) on the adsorption of the MB. The kinetic adsorption was well described by the Pseudo Second Order model and the Langmuir model described the adsorption behavior at equilibrium. The maximum adsorption capacity (qmax) of CCS-AC obtained was 149.25 mg/g at 303 K.
In this study, coconut leaves were used as a starting material for the production of activated carbon by thermal
carbonization using FeCl3
-activation method. The characterization of coconut leaves-FeCl3
activated carbon (FAC) were
evaluated by bulk density, ash content, moisture content, point-of-zero charge (pHpzc) analysis, iodine test, scanning
electron microscopy (SEM), Fourier transform infrared (FTIR) and elemental (CHNS-O) analysis. The effect of the adsorbent
dosage (0.02-0.25 g), initial pH (3-11), initial dye concentrations (30-350 mg/L) and contact time (1-180 min) on the
adsorption of the methylene blue (MB) at 303 K was performed via batch experiments. The Pseudo-Second Order (PSO)
describes the kinetic model well whereas the Langmuir isotherm proved that adsorption behavior at equilibrium with
maximum adsorption capacity (qmax) of 66.00 mg/g.