TY - JOUR
T1 - Decontamination of arsenic(V)-contained liquid phase utilizing Fe3O4/bone char nanocomposite encapsulated in chitosan biopolymer
AU - Darvishi Cheshmeh Soltani, Reza
AU - Safari, Mahdi
AU - Maleki, Afshin
AU - Rezaee, Reza
AU - Shahmoradi, Behzad
AU - Shahmohammadi, Siran
AU - Ghahramani, Esmail
N1 - Publisher Copyright:
© 2017, Springer-Verlag Berlin Heidelberg.
PY - 2017/6/1
Y1 - 2017/6/1
N2 - The application of a novel nanocomposite synthesized through the combination of Fe3O4 nanoparticles and bone char particles for the adsorption of As(V) ions in the aquatic medium was investigated. As-prepared nanocomposite was immobilized by using chitosan biopolymer. The characterization of the nanocomposite was performed via SEM, XRD, FT-IR, and BET together with the determination of zero-point charge of the adsorbent surface. As results, the obtained experimental data were fitted well with pseudo-first-order kinetic model (R2 = 0.997) and Langmuir isotherm model (R2 = 0.990) with the maximum adsorption capacity of about 112 μg/g. Increasing the dosage of nanocomposite and initial solute concentration led to increasing the adsorption capacity of As(V) ions, while decreasing the solution temperature resulted in the enhanced adsorption process. According to the results of thermodynamic study, the adsorption of As(V) ions onto the nanocomposite was spontaneous and exothermic in nature.
AB - The application of a novel nanocomposite synthesized through the combination of Fe3O4 nanoparticles and bone char particles for the adsorption of As(V) ions in the aquatic medium was investigated. As-prepared nanocomposite was immobilized by using chitosan biopolymer. The characterization of the nanocomposite was performed via SEM, XRD, FT-IR, and BET together with the determination of zero-point charge of the adsorbent surface. As results, the obtained experimental data were fitted well with pseudo-first-order kinetic model (R2 = 0.997) and Langmuir isotherm model (R2 = 0.990) with the maximum adsorption capacity of about 112 μg/g. Increasing the dosage of nanocomposite and initial solute concentration led to increasing the adsorption capacity of As(V) ions, while decreasing the solution temperature resulted in the enhanced adsorption process. According to the results of thermodynamic study, the adsorption of As(V) ions onto the nanocomposite was spontaneous and exothermic in nature.
KW - Adsorption
KW - Bone charcoal
KW - Immobilization
KW - Iron oxide nanostructures
KW - Pentavalent arsenic
UR - https://www.scopus.com/pages/publications/85019223420
U2 - 10.1007/s11356-017-9128-9
DO - 10.1007/s11356-017-9128-9
M3 - Article
C2 - 28500548
AN - SCOPUS:85019223420
SN - 0944-1344
VL - 24
SP - 15157
EP - 15166
JO - Environmental Science and Pollution Research
JF - Environmental Science and Pollution Research
IS - 17
ER -