TY - GEN
T1 - Adsorption of heavy metals from aqueous media on graphene-based nanomaterials
AU - Galunin, Evgeny
AU - Burakova, Irina
AU - Neskoromnaya, Elena
AU - Babkin, Alexandr
AU - Melezhik, Alexandr
AU - Burakov, Alexandr
AU - Tkachev, Alexey
PY - 2018/11/13
Y1 - 2018/11/13
N2 - The present paper considers experimental studies carried out to determine the effective kinetic parameters of the adsorption of heavy metal ions (Cu2+, Zn2+, and Cr3+) from aqueous solutions using graphene oxide (GO) and the composite materials on the basis thereof - polyamine cumulene/graphene (PAC/G) and polyquinone/graphene (PQ/G) - under static and ambient temperature conditions. The following results were obtained: GO - adsorption time 20 min (for all the metal ions), and adsorption capacity 60, 26, and 5.5 mg g-1 (for Cu2+, Zn2++, and Cr3+, respectively); PAC/G: adsorption time 30 min, adsorption capacity 26 mg g-1 (for Cu2+); and PQ/G: adsorption time 30 min, adsorption capacity - 40 mg g-1 (for Cu2+). According to the experimental data, more than 90 % of the adsorption capacity was achieved in the first 20 min of the contact between the GO and the heavy metal solutions. The equilibrium of the system was reached at the same time, regardless of the extracted component and the degree of adsorption. The PAC/G and PQ/G also exhibited high adsorption capacity values for the heavy metal ions in comparison with the conventional materials. Thus, the graphene-based nanomaterials can be successfully used for removing the heavy metal ions from aqueous media, which is very important from an environmental point of view (e.g., water treatment purposes).
AB - The present paper considers experimental studies carried out to determine the effective kinetic parameters of the adsorption of heavy metal ions (Cu2+, Zn2+, and Cr3+) from aqueous solutions using graphene oxide (GO) and the composite materials on the basis thereof - polyamine cumulene/graphene (PAC/G) and polyquinone/graphene (PQ/G) - under static and ambient temperature conditions. The following results were obtained: GO - adsorption time 20 min (for all the metal ions), and adsorption capacity 60, 26, and 5.5 mg g-1 (for Cu2+, Zn2++, and Cr3+, respectively); PAC/G: adsorption time 30 min, adsorption capacity 26 mg g-1 (for Cu2+); and PQ/G: adsorption time 30 min, adsorption capacity - 40 mg g-1 (for Cu2+). According to the experimental data, more than 90 % of the adsorption capacity was achieved in the first 20 min of the contact between the GO and the heavy metal solutions. The equilibrium of the system was reached at the same time, regardless of the extracted component and the degree of adsorption. The PAC/G and PQ/G also exhibited high adsorption capacity values for the heavy metal ions in comparison with the conventional materials. Thus, the graphene-based nanomaterials can be successfully used for removing the heavy metal ions from aqueous media, which is very important from an environmental point of view (e.g., water treatment purposes).
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U2 - 10.1063/1.5079338
DO - 10.1063/1.5079338
M3 - Conference contribution
AN - SCOPUS:85057333234
T3 - AIP Conference Proceedings
BT - 2D Systems of the Strong Correlated Electrons
A2 - Tayurskii, Dmitrii A.
A2 - Sharin, Egor P.
A2 - Grigor'ev, Yuri M.
A2 - Neustroev, Efim P.
PB - American Institute of Physics Inc.
T2 - International Conference on 2D Systems of the Strong Correlated Electrons: From Fundamental Research to Practical Applications 2018
Y2 - 18 June 2018 through 23 June 2018
ER -