Removal of 2,4-dichlorophenol from wastewater by an efficient adsorbent of magnetic activated carbon
Nur Marhaini Badu Latip, K. Gopal, Mamman Suwaibatu, Nor Munira Hashim, Nurul Yani Rahim, Muggundha Raoov, Noorfatimah Yahaya, Nur Nadhirah Mohamad Zain
Abstract
An efficient adsorbent of magnetic activated carbon (Fe3O4@AC) was investigated to remove 2,4-DCP from industrial wastewater samples using a spectrophotometer. The Fe3O4@AC was characterized using FTIR, VSM, and SEM. Various adsorption parameters include pH (3–10), contact time (5–100 min), adsorbent dosage (5–80 mg), initial concentration (5–100 mg/L) and temperature (298–333 K) were optimized. The maximum adsorption capacity of 188.7 mg/g was attained. Adsorption study was described by pseudo-second order and Freundlich model. Thermodynamic data proves the reaction was spontaneous and exothermic at room temperature. The adsorbents were further validated and applied to industrial wastewater with a removal ability of 83% to 88%.