Study of isothermal, kinetic, and thermodynamic parameters for sorption of vanadium
Само за регистроване кориснике
2023
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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-secondorder, 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.
Кључне речи:
sorption / vanadium / kinetics / isotherms / thermodynamicsИзвор:
Proceedings - XIV International Scientific Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, 2023, 292-299Издавач:
- University in Banjaluka, Faculty of Technology
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200026 (Универзитет у Београду, Институт за хемију, технологију и металургију - ИХТМ) (RS-MESTD-inst-2020-200026)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-MESTD-inst-2020-200135)
Институција/група
IHTMTY - CONF AU - Tadić, Tamara AU - Marković, Bojana AU - Nastasović, Aleksandra AU - Suručić, Ljiljana T. AU - Sandić, Zvjezdana PY - 2023 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6985 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-secondorder, 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 - Proceedings - 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 - 292 EP - 299 UR - https://hdl.handle.net/21.15107/rcub_cer_6985 ER -
@conference{ author = "Tadić, Tamara and Marković, Bojana and Nastasović, Aleksandra and Suručić, Ljiljana T. and Sandić, Zvjezdana", 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-secondorder, 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 = "Proceedings - 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 = "292-299", url = "https://hdl.handle.net/21.15107/rcub_cer_6985" }
Tadić, T., Marković, B., Nastasović, A., Suručić, L. T.,& Sandić, Z.. (2023). Study of isothermal, kinetic, and thermodynamic parameters for sorption of vanadium. in Proceedings - XIV International Scientific Conference of Chemists, Technologists and Environmentalists of Republic of Srpska University in Banjaluka, Faculty of Technology., 292-299. https://hdl.handle.net/21.15107/rcub_cer_6985
Tadić T, Marković B, Nastasović A, Suručić LT, Sandić Z. Study of isothermal, kinetic, and thermodynamic parameters for sorption of vanadium. in Proceedings - XIV International Scientific Conference of Chemists, Technologists and Environmentalists of Republic of Srpska. 2023;:292-299. https://hdl.handle.net/21.15107/rcub_cer_6985 .
Tadić, Tamara, Marković, Bojana, Nastasović, Aleksandra, Suručić, Ljiljana T., Sandić, Zvjezdana, "Study of isothermal, kinetic, and thermodynamic parameters for sorption of vanadium" in Proceedings - XIV International Scientific Conference of Chemists, Technologists and Environmentalists of Republic of Srpska (2023):292-299, https://hdl.handle.net/21.15107/rcub_cer_6985 .