TY - JOUR
T1 - Effect of Mg2+ ions on competitive metal ions adsorption/desorption on magnesium ferrite
T2 - Mechanism, reusability and stability studies
AU - Ivanets, Andrei
AU - Prozorovich, Vladimir
AU - Kouznetsova, Tatyana
AU - Dontsova, Tetiana
AU - Yanushevska, Olena
AU - Hosseini-Bandegharaei, Ahmad
AU - Srivastava, Varsha
AU - Sillanpää, Mika
N1 - Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/6/5
Y1 - 2021/6/5
N2 - The adsorption behavior of magnesium ferrite in single- and multicomponent metal ions solutions in the presence of Mg2+ ions were studied. A dramatic decrease in the adsorption capacity of magnesium ferrite towards Mn2+, Co2+, and Ni2+ ions for comparison study of single- and multicomponent solutions was established. The affinity of the sorbent in accordance with the maximum sorption capacities increases in the following order Cu2+ > Co2+ > Ni2+ > Mn2+. High efficiency of magnesium ferrite regeneration (~100%) with aqueous solutions of magnesium chloride in the concentration range of 0.001–0.1 M was shown. The low degree of toxic metal ions desorption combined with XRD, IR spectroscopy, and EDX analysis data indicate the key role of Mg2+ ion adsorption in the magnesium ferrite adsorbent regeneration. The positive effect of the introduction of Mg2+ ions into multicomponent solutions on metal ions adsorption was established, which is accompanied by an increase in the maximum sorption capacity for all metal ions and especially significant increase in the selectivity towards Cu2+ ions (2.41 mmol/g). The stability of the crystal structure of magnesium ferrite and a low degree of Mg2+ and Fe3+ ions leaching during multiple cycles of adsorption and regeneration of the adsorbent were observed.
AB - The adsorption behavior of magnesium ferrite in single- and multicomponent metal ions solutions in the presence of Mg2+ ions were studied. A dramatic decrease in the adsorption capacity of magnesium ferrite towards Mn2+, Co2+, and Ni2+ ions for comparison study of single- and multicomponent solutions was established. The affinity of the sorbent in accordance with the maximum sorption capacities increases in the following order Cu2+ > Co2+ > Ni2+ > Mn2+. High efficiency of magnesium ferrite regeneration (~100%) with aqueous solutions of magnesium chloride in the concentration range of 0.001–0.1 M was shown. The low degree of toxic metal ions desorption combined with XRD, IR spectroscopy, and EDX analysis data indicate the key role of Mg2+ ion adsorption in the magnesium ferrite adsorbent regeneration. The positive effect of the introduction of Mg2+ ions into multicomponent solutions on metal ions adsorption was established, which is accompanied by an increase in the maximum sorption capacity for all metal ions and especially significant increase in the selectivity towards Cu2+ ions (2.41 mmol/g). The stability of the crystal structure of magnesium ferrite and a low degree of Mg2+ and Fe3+ ions leaching during multiple cycles of adsorption and regeneration of the adsorbent were observed.
KW - Competitive adsorption
KW - Magnesium ferrite
KW - Mechanism adsorption
KW - Regeneration
KW - Stability
UR - http://www.scopus.com/inward/record.url?scp=85099609156&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2020.124902
DO - 10.1016/j.jhazmat.2020.124902
M3 - Article
C2 - 33858077
AN - SCOPUS:85099609156
SN - 0304-3894
VL - 411
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
M1 - 124902
ER -