New reactive ionic liquids as carriers in polymer inclusion membranes for transport and separation of Cd(II), Cu(II), Pb(II), and Zn(II) ions from chloride aqueous solutions was written by Szczepanski, Piotr;Guo, Haopeng;Dzieszkowski, Krzysztof;Rafinski, Zbigniew;Wolan, Andrzej;Fatyeyeva, Kateryna;Kujawa, Joanna;Kujawski, Wojciech. And the article was included in Journal of Membrane Science in 2021.Application In Synthesis of 1-Octyl-1H-imidazole This article mentions the following:
Three new reactive ionic liquids (RILs) based on the imidazole derivatives were synthesized and used as carriers in polymer inclusion membranes (PIMs) composed of cellulose triacetate (CTA) as a polymer matrix and o-nitrophenyl octyl ether (NPOE) as a plasticizer. The effect of alkyl chain length (C1, C4, and C8) in the imidazolium cation of RILs on the transport and separation properties was evaluated. From among three synthesized RILs only the RIL with the longest alkyl chain (RILC8_Br) can be successfully applied as the carrier for Cd(II) removal from multicomponent aqueous chloride solution containing also Cu(II), Pb(II), and Zn(II) ions. The effects of the stripping phase composition, HCl concentration in the feed solution, and the carrier content in the membrane on the separation performance and transport effectiveness were studied. The results indicate that the RILC8_Br ionic liquid enables selective transport of Cd(II) ions and their active concentration in the stripping solution with the fluxes reaching a value of 2.7 x 10-10 mol/cm2s. In the investigated feed solution concentration range, the selectivity order was found to be Cd(II) > Zn(II) > Pb(II) ≫ Cu(II) and it was independent of the exptl. conditions. For a description of the transport kinetics a model similar to the first-order reversible reaction equations was applied and its applicability was proved. In the experiment, the researchers used many compounds, for example, 1-Octyl-1H-imidazole (cas: 21252-69-7Application In Synthesis of 1-Octyl-1H-imidazole).
1-Octyl-1H-imidazole (cas: 21252-69-7) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.Application In Synthesis of 1-Octyl-1H-imidazole
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem