TY  - JOUR
AU  - Šuránek, Matej
AU  - Melichová, Zuzana
AU  - Kureková, Valéria
AU  - Kljajević, Ljiljana M.
AU  - Nenadović, Snežana S.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9520
AB  - In this study, the removal of nickel (Ni(II)) by adsorption from synthetically prepared solutions using natural bentonites (Lieskovec (L), Hliník nad Hronom (S), Jelšový Potok (JP), and Stará Kremnička (SK)) was investigated. All experiments were carried out under batch processing conditions, with the concentration of Ni(II), temperature, and time as the variables. The adsorption process was fast, approaching equilibrium within 30 min. The Langmuir maximum adsorption capacities of the four bentonite samples used were found to be 8.41, 12.24, 21.79, and 21.93 mg g–1, respectively. The results best fitted the pseudo-second-order kinetic model, with constant rates in a range of 0.0948–0.3153 g mg–1 min. The effect of temperature was investigated at temperatures of 20, 30, and 40 °C. Thermodynamic parameters, including standard enthalpy (ΔH0), Gibbs energy (ΔG0), and standard entropy (ΔS0), were calculated. The adsorption of Ni(II) by bentonite samples was an endothermic and spontaneous process. These results indicated that, of the bentonite samples used, the natural bentonites from JP and SK were most suitable for the removal of nickel from synthetically prepared solutions.
T2  - Materials
T1  - Removal of Nickel from Aqueous Solutions by Natural Bentonites from Slovakia
VL  - 14
IS  - 2
SP  - 282
DO  - 10.3390/ma14020282
ER  - 

@article{
author = "Šuránek, Matej and Melichová, Zuzana and Kureková, Valéria and Kljajević, Ljiljana M. and Nenadović, Snežana S.",
year = "2021",
abstract = "In this study, the removal of nickel (Ni(II)) by adsorption from synthetically prepared solutions using natural bentonites (Lieskovec (L), Hliník nad Hronom (S), Jelšový Potok (JP), and Stará Kremnička (SK)) was investigated. All experiments were carried out under batch processing conditions, with the concentration of Ni(II), temperature, and time as the variables. The adsorption process was fast, approaching equilibrium within 30 min. The Langmuir maximum adsorption capacities of the four bentonite samples used were found to be 8.41, 12.24, 21.79, and 21.93 mg g–1, respectively. The results best fitted the pseudo-second-order kinetic model, with constant rates in a range of 0.0948–0.3153 g mg–1 min. The effect of temperature was investigated at temperatures of 20, 30, and 40 °C. Thermodynamic parameters, including standard enthalpy (ΔH0), Gibbs energy (ΔG0), and standard entropy (ΔS0), were calculated. The adsorption of Ni(II) by bentonite samples was an endothermic and spontaneous process. These results indicated that, of the bentonite samples used, the natural bentonites from JP and SK were most suitable for the removal of nickel from synthetically prepared solutions.",
journal = "Materials",
title = "Removal of Nickel from Aqueous Solutions by Natural Bentonites from Slovakia",
volume = "14",
number = "2",
pages = "282",
doi = "10.3390/ma14020282"
}

Šuránek, M., Melichová, Z., Kureková, V., Kljajević, L. M.,& Nenadović, S. S.. (2021). Removal of Nickel from Aqueous Solutions by Natural Bentonites from Slovakia. in Materials, 14(2), 282.
https://doi.org/10.3390/ma14020282

Šuránek M, Melichová Z, Kureková V, Kljajević LM, Nenadović SS. Removal of Nickel from Aqueous Solutions by Natural Bentonites from Slovakia. in Materials. 2021;14(2):282.
doi:10.3390/ma14020282 .

Šuránek, Matej, Melichová, Zuzana, Kureková, Valéria, Kljajević, Ljiljana M., Nenadović, Snežana S., "Removal of Nickel from Aqueous Solutions by Natural Bentonites from Slovakia" in Materials, 14, no. 2 (2021):282,
https://doi.org/10.3390/ma14020282 . .