TY - JOUR
T1 - Adsorption of phenol on environmentally friendly Fe3O4/chitosan/zeolitic imidazolate framework-8 nanocomposite: Optimization by experimental design methodology
AU - Keshvardoostchokami, Mina
AU - Majidi, Mahyar
AU - Zamani, Abbasali
AU - Liu, Bo
PY - 2021
Y1 - 2021
N2 - Fe3O4/chitosan/ZIF-8 nanocomposite as a novel bio-adsorbent for phenol removal is reported in the current work. The nanocomposite was prepared in situ, and ZIF-8 particles with rhombic dodecahedron morphology were grown on the composite successfully. FTIR, XRD, FESEM, TEM, BET, and VSM were applied to analyze the nanocomposite physiochemically. Central composite design model (CCD) was applied to optimize effective factors such as phenol initial concentration, pH, time, and adsorbent dosage on phenol uptake. The optimum condition was 77.21% (6.43 mg/g) uptake of phenol from 20 mL solution with initial phenol concentration of 2022 mg/L and pH = 9.91, by 0.1 g of the adsorbent after 4344 min. The pseudo-second-order and Langmuir patterns as kinetic and isotherm models interpreted phenol adsorption very well. The current research presents a deep understanding of the formation of Fe3O4/chitosan/ZIF-8 nanocomposite, which has a suitable potential in phenol adsorption. (C) 2020 Published by Elsevier B.V.
AB - Fe3O4/chitosan/ZIF-8 nanocomposite as a novel bio-adsorbent for phenol removal is reported in the current work. The nanocomposite was prepared in situ, and ZIF-8 particles with rhombic dodecahedron morphology were grown on the composite successfully. FTIR, XRD, FESEM, TEM, BET, and VSM were applied to analyze the nanocomposite physiochemically. Central composite design model (CCD) was applied to optimize effective factors such as phenol initial concentration, pH, time, and adsorbent dosage on phenol uptake. The optimum condition was 77.21% (6.43 mg/g) uptake of phenol from 20 mL solution with initial phenol concentration of 2022 mg/L and pH = 9.91, by 0.1 g of the adsorbent after 4344 min. The pseudo-second-order and Langmuir patterns as kinetic and isotherm models interpreted phenol adsorption very well. The current research presents a deep understanding of the formation of Fe3O4/chitosan/ZIF-8 nanocomposite, which has a suitable potential in phenol adsorption. (C) 2020 Published by Elsevier B.V.
U2 - 10.1016/j.molliq.2020.115064
DO - 10.1016/j.molliq.2020.115064
M3 - Article
SN - 0167-7322
VL - 323
JO - Journal of Molecular Liquids
JF - Journal of Molecular Liquids
ER -