TY - JOUR
T1 - Efficient removal of amoxicillin and paracetamol from aqueous solutions using magnetic activated carbon
AU - Saucier, Caroline
AU - Karthickeyan, P.
AU - Ranjithkumar, V.
AU - Lima, Eder C.
AU - dos Reis, Glaydson S.
AU - de Brum, Irineu A.S.
N1 - Publisher Copyright:
© 2017, Springer-Verlag Berlin Heidelberg.
PY - 2017/2/1
Y1 - 2017/2/1
N2 - Activated carbon (AC)/CoFe2O4 nanocomposites, MAC-1 and MAC-2, were prepared by a simple pyrolytic method using a mixture of iron(III)/cobalt(II) benzoates and iron(III)/cobalt(II) oxalates, respectively, and were used as efficient adsorbents for the removal of amoxicillin (AMX) and paracetamol (PCT) of aqueous effluents. The synthesized nanocomposites were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), vibrating sample magnetometry (VSM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and transmission electron microscopy (TEM). The sizes of cobalt ferrite nanoparticles formed from benzoates of iron(III)/cobalt(II) and oxalates of iron(III)/cobalt(II) precursors were in the ranges of 5–80 and 6–27 nm, respectively. The saturation magnetization (Ms), remanence (Mr) and coercivity (Hc) of the MAC-2 nanocomposites were found to be 3.07 emu g−1, 1.36 emu g−1 and 762.49 Oe; for MAC-1, they were 0.2989 emu g−1, 0.0466 emu g−1 and 456.82 Oe. The adsorption kinetics and isotherm studies were investigated, and the results showed that the as-prepared nanocomposites MAC-1 and MAC-2 could be utilized as an efficient, magnetically separable adsorbent for environmental cleanup. The maximum sorption capacities obtained were 280.9 and 444.2 mg g−1 of AMX for MAC-1 and MAC-2, respectively, and 215.1 and 399.9 mg g−1 of PCT using MAC-1 and MAC-2, respectively. Both adsorbents were successfully used for simulated hospital effluents, removing at least 93.00 and 96.77% for MAC-1 and MAC-2, respectively, of a mixture of nine pharmaceuticals with high concentrations of sugars, organic components and saline concentrations.
AB - Activated carbon (AC)/CoFe2O4 nanocomposites, MAC-1 and MAC-2, were prepared by a simple pyrolytic method using a mixture of iron(III)/cobalt(II) benzoates and iron(III)/cobalt(II) oxalates, respectively, and were used as efficient adsorbents for the removal of amoxicillin (AMX) and paracetamol (PCT) of aqueous effluents. The synthesized nanocomposites were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), vibrating sample magnetometry (VSM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and transmission electron microscopy (TEM). The sizes of cobalt ferrite nanoparticles formed from benzoates of iron(III)/cobalt(II) and oxalates of iron(III)/cobalt(II) precursors were in the ranges of 5–80 and 6–27 nm, respectively. The saturation magnetization (Ms), remanence (Mr) and coercivity (Hc) of the MAC-2 nanocomposites were found to be 3.07 emu g−1, 1.36 emu g−1 and 762.49 Oe; for MAC-1, they were 0.2989 emu g−1, 0.0466 emu g−1 and 456.82 Oe. The adsorption kinetics and isotherm studies were investigated, and the results showed that the as-prepared nanocomposites MAC-1 and MAC-2 could be utilized as an efficient, magnetically separable adsorbent for environmental cleanup. The maximum sorption capacities obtained were 280.9 and 444.2 mg g−1 of AMX for MAC-1 and MAC-2, respectively, and 215.1 and 399.9 mg g−1 of PCT using MAC-1 and MAC-2, respectively. Both adsorbents were successfully used for simulated hospital effluents, removing at least 93.00 and 96.77% for MAC-1 and MAC-2, respectively, of a mixture of nine pharmaceuticals with high concentrations of sugars, organic components and saline concentrations.
KW - Adsorption
KW - Amoxicillin
KW - Carbon nanocomposites
KW - Magnetic properties
KW - Paracetamol
UR - http://www.scopus.com/inward/record.url?scp=85008516511&partnerID=8YFLogxK
U2 - 10.1007/S11356-016-8304-7
DO - 10.1007/S11356-016-8304-7
M3 - Article
C2 - 28064396
SN - 0944-1344
VL - 24
SP - 5918
EP - 5932
JO - Environmental Science and Pollution Research
JF - Environmental Science and Pollution Research
IS - 6
ER -