Spherical activated carbon modified by polymerized ionic liquid for the removal of ibuprofen from water was written by Xu, Xiao;An, Xiaoning. And the article was included in Journal of Chemical Technology and Biotechnology in 2016.Electric Literature of C9H15F6N2P This article mentions the following:
BACKGROUND: The adsorption capacity of activated carbon has been found to improve through modification with ionic liquids However, ionic liquids tend to sep. from the activated carbon when exposed to water even for a relatively short period. RESULTS: Characterization of spherical activated carbon (SAC) modified with poly(1-vinyl-3-butylimidazolium hexafluorophosphate) (PIL) showed that 1-vinyl-3-butylimidazolium hexafluorophosphate (IL) was adsorbed and polymerized on SAC. Stability studies of PIL-SAC in water demonstrated that it was more stable against IL desorption in water than the non-polymerized IL-SAC. The adsorption data showed that the modification improved the adsorption capacity of SAC at least 2-fold. The results also indicated that although the pH and ionic strength of the solution played a significant role in the adsorption process, there was no significant influence on the adsorption capacity. Moreover, PIL-SAC could be reused at least five times with only minor losses in its adsorption capacity. CONCLUSION : The activated carbon modified with PIL produces a remarkable increase in the ibuprofen adsorption capacity and strongly decreases undesirable desorption of ionic liquids In the experiment, the researchers used many compounds, for example, 1-Butyl-3-vinyl-1H-imidazol-3-ium hexafluorophosphate(V) (cas: 915358-85-9Electric Literature of C9H15F6N2P).
1-Butyl-3-vinyl-1H-imidazol-3-ium hexafluorophosphate(V) (cas: 915358-85-9) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents.n increase of the alkyl chain length of the alcohols. Electric Literature of C9H15F6N2P
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem