Study of isothermal, kinetic, and thermodynamic parameters for sorption of vanadium
Samo za registrovane korisnike
2023
Autori
Tadić, TamaraMarković, Bojana
Nastasović, Aleksandra
Suručić, Ljiljana T.
Sandić, Zvjezdana
Onjia, Antonije
Konferencijski prilog (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
This study evaluated the equilibrium, kinetics, and thermodynamics of vanadium sorption from aqueous solution onto nanocomposite functionalized with diethylene triamine in batch conditions. The effects of temperature, solution pH, and initial concentration of vanadium were examined. The maximum sorption capacity of vanadium on the tested sorbent was achieved at pH 6. The sorption capacity increased with increasing temperature and initial concentration. The equilibrium adsorption data were analyzed using Langmuir, Freundlich, Temkin, Jovanovic, Toth, Sips, Khan, and Redlich-Peterson isotherm models. The kinetics data were studied using pseudo-first-order, pseudo-second-order, the fractional power, Elovich, and Avrami models. A non-linear fitting method was used to compare the best fitting of the equilibrium and kinetic data. The sorption equilibrium data were best represented by the Langmuir, Khan, Toth, and Redlich–Peterson isotherms. The adsorption kinetics was estimated to follow the... pseudo-second-order kinetic model. The mechanism of vanadium sorption was analyzed with intra-particle, Bangham, Boyd, and liquid film diffusion models. It was observed that the sorption process was controlled by the film-diffusion as well as the pore-diffusion. Thermodynamic parameters (change of standard enthalpy (ΔH°), standard entropy (ΔS°), and standard free energy (ΔG°)) suggested that the sorption of vanadium onto functionalized nanocomposite was a spontaneous and endothermic process.
Ključne reči:
sorption / vanadium / kinetics / isotherms / thermodynamicsIzvor:
Book of abstracts - XIV International Scientific Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, 2023, 202-202Izdavač:
- University in Banjaluka, Faculty of Technology
Finansiranje / projekti:
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200026 (Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju - IHTM) (RS-MESTD-inst-2020-200026)
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200135 (Univerzitet u Beogradu, Tehnološko-metalurški fakultet) (RS-MESTD-inst-2020-200135)
Institucija/grupa
IHTMTY - CONF AU - Tadić, Tamara AU - Marković, Bojana AU - Nastasović, Aleksandra AU - Suručić, Ljiljana T. AU - Sandić, Zvjezdana AU - Onjia, Antonije PY - 2023 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6987 AB - This study evaluated the equilibrium, kinetics, and thermodynamics of vanadium sorption from aqueous solution onto nanocomposite functionalized with diethylene triamine in batch conditions. The effects of temperature, solution pH, and initial concentration of vanadium were examined. The maximum sorption capacity of vanadium on the tested sorbent was achieved at pH 6. The sorption capacity increased with increasing temperature and initial concentration. The equilibrium adsorption data were analyzed using Langmuir, Freundlich, Temkin, Jovanovic, Toth, Sips, Khan, and Redlich-Peterson isotherm models. The kinetics data were studied using pseudo-first-order, pseudo-second-order, the fractional power, Elovich, and Avrami models. A non-linear fitting method was used to compare the best fitting of the equilibrium and kinetic data. The sorption equilibrium data were best represented by the Langmuir, Khan, Toth, and Redlich–Peterson isotherms. The adsorption kinetics was estimated to follow the pseudo-second-order kinetic model. The mechanism of vanadium sorption was analyzed with intra-particle, Bangham, Boyd, and liquid film diffusion models. It was observed that the sorption process was controlled by the film-diffusion as well as the pore-diffusion. Thermodynamic parameters (change of standard enthalpy (ΔH°), standard entropy (ΔS°), and standard free energy (ΔG°)) suggested that the sorption of vanadium onto functionalized nanocomposite was a spontaneous and endothermic process. PB - University in Banjaluka, Faculty of Technology C3 - Book of abstracts - XIV International Scientific Conference of Chemists, Technologists and Environmentalists of Republic of Srpska T1 - Study of isothermal, kinetic, and thermodynamic parameters for sorption of vanadium SP - 202 EP - 202 UR - https://hdl.handle.net/21.15107/rcub_cer_6987 ER -
@conference{ author = "Tadić, Tamara and Marković, Bojana and Nastasović, Aleksandra and Suručić, Ljiljana T. and Sandić, Zvjezdana and Onjia, Antonije", year = "2023", abstract = "This study evaluated the equilibrium, kinetics, and thermodynamics of vanadium sorption from aqueous solution onto nanocomposite functionalized with diethylene triamine in batch conditions. The effects of temperature, solution pH, and initial concentration of vanadium were examined. The maximum sorption capacity of vanadium on the tested sorbent was achieved at pH 6. The sorption capacity increased with increasing temperature and initial concentration. The equilibrium adsorption data were analyzed using Langmuir, Freundlich, Temkin, Jovanovic, Toth, Sips, Khan, and Redlich-Peterson isotherm models. The kinetics data were studied using pseudo-first-order, pseudo-second-order, the fractional power, Elovich, and Avrami models. A non-linear fitting method was used to compare the best fitting of the equilibrium and kinetic data. The sorption equilibrium data were best represented by the Langmuir, Khan, Toth, and Redlich–Peterson isotherms. The adsorption kinetics was estimated to follow the pseudo-second-order kinetic model. The mechanism of vanadium sorption was analyzed with intra-particle, Bangham, Boyd, and liquid film diffusion models. It was observed that the sorption process was controlled by the film-diffusion as well as the pore-diffusion. Thermodynamic parameters (change of standard enthalpy (ΔH°), standard entropy (ΔS°), and standard free energy (ΔG°)) suggested that the sorption of vanadium onto functionalized nanocomposite was a spontaneous and endothermic process.", publisher = "University in Banjaluka, Faculty of Technology", journal = "Book of abstracts - XIV International Scientific Conference of Chemists, Technologists and Environmentalists of Republic of Srpska", title = "Study of isothermal, kinetic, and thermodynamic parameters for sorption of vanadium", pages = "202-202", url = "https://hdl.handle.net/21.15107/rcub_cer_6987" }
Tadić, T., Marković, B., Nastasović, A., Suručić, L. T., Sandić, Z.,& Onjia, A.. (2023). Study of isothermal, kinetic, and thermodynamic parameters for sorption of vanadium. in Book of abstracts - XIV International Scientific Conference of Chemists, Technologists and Environmentalists of Republic of Srpska University in Banjaluka, Faculty of Technology., 202-202. https://hdl.handle.net/21.15107/rcub_cer_6987
Tadić T, Marković B, Nastasović A, Suručić LT, Sandić Z, Onjia A. Study of isothermal, kinetic, and thermodynamic parameters for sorption of vanadium. in Book of abstracts - XIV International Scientific Conference of Chemists, Technologists and Environmentalists of Republic of Srpska. 2023;:202-202. https://hdl.handle.net/21.15107/rcub_cer_6987 .
Tadić, Tamara, Marković, Bojana, Nastasović, Aleksandra, Suručić, Ljiljana T., Sandić, Zvjezdana, Onjia, Antonije, "Study of isothermal, kinetic, and thermodynamic parameters for sorption of vanadium" in Book of abstracts - XIV International Scientific Conference of Chemists, Technologists and Environmentalists of Republic of Srpska (2023):202-202, https://hdl.handle.net/21.15107/rcub_cer_6987 .