Protic ionic liquids as adjuvants to enhance extraction and separation performance of diverse polarity compounds in PEG-salt based aqueous biphasic system
Samo za registrovane korisnike
2020
Autori
Jocić, AnaMarić, Slađana
Dimitrijević, Aleksandra
Tot, Aleksandar
Gadžurić, Slobodan
Vraneš, Milan
Trtić-Petrović, Tatjana M.
Članak u časopisu (Objavljena verzija)
,
© 2020 Elsevier B.V.
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
This work addresses use of a set of 2-hydroxypropylammonium based protic ionic liquids (PILs) as adjuvants in the aqueous biphasic system (ABS) composed of polyethylene glycol, with molecular weight 2000 g/mol (PEG 2000) and potassium carbonate. The phase diagrams were determined at 25 °C for ABS without and with the addition of 5 wt% of PIL. Comparative analysis of solubility curves indicates that PILs influence liquid-liquid equilibria of PEG 2000-K2CO3 ABS by heightening the hydrophilicity of a PEG-rich phase in various degrees. The compositions of the phases (tie lines) were determined for the selected ABS mixture composition, 26 wt% of PEG 2000 + 10 wt% of K2CO3, without and with 5 wt% of PILs, that is further used for the separation studies. The distribution of PILs between two phases is mainly dependent on specific PEG-PIL interactions and on the PIL content in ABS mixture. The experimental results are supported by molecular simulations that contributed to a broader picture of u...nderlying effects of PILs as adjuvants on ABS formation. The partition of four dye compounds, Remazol Brilliant Blue R (RBBR), Orange II (OII), Rhodamine B (RB) and Congo Red (CR), as probe molecules with different intrinsic properties, was investigated. Obtained results show that the addition of PILs can improve the extraction of hydrophilic and charged compounds as OII, RBBR and CR in PEG-rich phase. On the other hand, it promotes the extraction of hydrophobic and neutral solutes as RB in salt-rich phase. By the addition of the most hydrophilic 3-chloropropanoate based PIL in the PEG 2000-K2CO3 ABS 12 times higher separation factor for OII and RB was achieved. © 2020 Elsevier B.V.
Ključne reči:
Protic ionic liquids / Aqueous biphasic systems / Dye molecules / Extraction / Computational simulationIzvor:
Journal of Molecular Liquids, 2020, 303, 112484-Finansiranje / projekti:
- Fizika i hemija sa jonskim snopovima (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45006)
- Pristupi održivosti i zelene hemije u razvoju ekološki pogodnih analitičkih metoda i skladištenju energije (RS-MESTD-Basic Research (BR or ON)-172012)
DOI: 10.1016/j.molliq.2020.112484
ISSN: 0167-7322
WoS: 000533612700008
Scopus: 2-s2.0-85079872388
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Jocić, Ana AU - Marić, Slađana AU - Dimitrijević, Aleksandra AU - Tot, Aleksandar AU - Gadžurić, Slobodan AU - Vraneš, Milan AU - Trtić-Petrović, Tatjana M. PY - 2020 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8835 AB - This work addresses use of a set of 2-hydroxypropylammonium based protic ionic liquids (PILs) as adjuvants in the aqueous biphasic system (ABS) composed of polyethylene glycol, with molecular weight 2000 g/mol (PEG 2000) and potassium carbonate. The phase diagrams were determined at 25 °C for ABS without and with the addition of 5 wt% of PIL. Comparative analysis of solubility curves indicates that PILs influence liquid-liquid equilibria of PEG 2000-K2CO3 ABS by heightening the hydrophilicity of a PEG-rich phase in various degrees. The compositions of the phases (tie lines) were determined for the selected ABS mixture composition, 26 wt% of PEG 2000 + 10 wt% of K2CO3, without and with 5 wt% of PILs, that is further used for the separation studies. The distribution of PILs between two phases is mainly dependent on specific PEG-PIL interactions and on the PIL content in ABS mixture. The experimental results are supported by molecular simulations that contributed to a broader picture of underlying effects of PILs as adjuvants on ABS formation. The partition of four dye compounds, Remazol Brilliant Blue R (RBBR), Orange II (OII), Rhodamine B (RB) and Congo Red (CR), as probe molecules with different intrinsic properties, was investigated. Obtained results show that the addition of PILs can improve the extraction of hydrophilic and charged compounds as OII, RBBR and CR in PEG-rich phase. On the other hand, it promotes the extraction of hydrophobic and neutral solutes as RB in salt-rich phase. By the addition of the most hydrophilic 3-chloropropanoate based PIL in the PEG 2000-K2CO3 ABS 12 times higher separation factor for OII and RB was achieved. © 2020 Elsevier B.V. T2 - Journal of Molecular Liquids T1 - Protic ionic liquids as adjuvants to enhance extraction and separation performance of diverse polarity compounds in PEG-salt based aqueous biphasic system VL - 303 SP - 112484 DO - 10.1016/j.molliq.2020.112484 ER -
@article{ author = "Jocić, Ana and Marić, Slađana and Dimitrijević, Aleksandra and Tot, Aleksandar and Gadžurić, Slobodan and Vraneš, Milan and Trtić-Petrović, Tatjana M.", year = "2020", abstract = "This work addresses use of a set of 2-hydroxypropylammonium based protic ionic liquids (PILs) as adjuvants in the aqueous biphasic system (ABS) composed of polyethylene glycol, with molecular weight 2000 g/mol (PEG 2000) and potassium carbonate. The phase diagrams were determined at 25 °C for ABS without and with the addition of 5 wt% of PIL. Comparative analysis of solubility curves indicates that PILs influence liquid-liquid equilibria of PEG 2000-K2CO3 ABS by heightening the hydrophilicity of a PEG-rich phase in various degrees. The compositions of the phases (tie lines) were determined for the selected ABS mixture composition, 26 wt% of PEG 2000 + 10 wt% of K2CO3, without and with 5 wt% of PILs, that is further used for the separation studies. The distribution of PILs between two phases is mainly dependent on specific PEG-PIL interactions and on the PIL content in ABS mixture. The experimental results are supported by molecular simulations that contributed to a broader picture of underlying effects of PILs as adjuvants on ABS formation. The partition of four dye compounds, Remazol Brilliant Blue R (RBBR), Orange II (OII), Rhodamine B (RB) and Congo Red (CR), as probe molecules with different intrinsic properties, was investigated. Obtained results show that the addition of PILs can improve the extraction of hydrophilic and charged compounds as OII, RBBR and CR in PEG-rich phase. On the other hand, it promotes the extraction of hydrophobic and neutral solutes as RB in salt-rich phase. By the addition of the most hydrophilic 3-chloropropanoate based PIL in the PEG 2000-K2CO3 ABS 12 times higher separation factor for OII and RB was achieved. © 2020 Elsevier B.V.", journal = "Journal of Molecular Liquids", title = "Protic ionic liquids as adjuvants to enhance extraction and separation performance of diverse polarity compounds in PEG-salt based aqueous biphasic system", volume = "303", pages = "112484", doi = "10.1016/j.molliq.2020.112484" }
Jocić, A., Marić, S., Dimitrijević, A., Tot, A., Gadžurić, S., Vraneš, M.,& Trtić-Petrović, T. M.. (2020). Protic ionic liquids as adjuvants to enhance extraction and separation performance of diverse polarity compounds in PEG-salt based aqueous biphasic system. in Journal of Molecular Liquids, 303, 112484. https://doi.org/10.1016/j.molliq.2020.112484
Jocić A, Marić S, Dimitrijević A, Tot A, Gadžurić S, Vraneš M, Trtić-Petrović TM. Protic ionic liquids as adjuvants to enhance extraction and separation performance of diverse polarity compounds in PEG-salt based aqueous biphasic system. in Journal of Molecular Liquids. 2020;303:112484. doi:10.1016/j.molliq.2020.112484 .
Jocić, Ana, Marić, Slađana, Dimitrijević, Aleksandra, Tot, Aleksandar, Gadžurić, Slobodan, Vraneš, Milan, Trtić-Petrović, Tatjana M., "Protic ionic liquids as adjuvants to enhance extraction and separation performance of diverse polarity compounds in PEG-salt based aqueous biphasic system" in Journal of Molecular Liquids, 303 (2020):112484, https://doi.org/10.1016/j.molliq.2020.112484 . .