A new imidazolium-based polymeric ionic liquid gel with high adsorption capacity for perrhenate

Abstract

New imidazolium-based polymeric ionic liquid gel with high adsorption capacity for perrhenate prepared by γ-radiation induced polymerization and crosslinking.

Polymeric ionic liquid gels composed of hydrophilic and hydrophobic units for high adsorption selectivity of perrhenate

“…Since the long-chain unit C 12 vimBr has larger M w than that of C 2 vimBr, the q m of PC 2 -C 12 vimBr-A was lower than that of the Re adsorbent PC 2 vimBr we reported before, which was 865 mg g À1 . 24 However, as a gel adsorbent, PC 2 -C 12 vimBr-A was fully composed of functional groups without matrix, its adsorption capacity was higher than most of the Re adsorbents reported. 3,10,16 For the practical usage of Re/Tc adsorbents, the selectivity is more important than the adsorption capacities.…”

“…3,3 0 -Divinyl-1,1 0 (1,6-hexanediyl) diimidazolium dibromide (C 6 vim 2 Br 2 ) was easily synthesized as we reported before. 24 1,6-Dibromohexane was purchased from J&K, and 1-vinylimidazole was provided by TCI. KReO 4 was obtained from Alfa Aesar.…”

“…Thus, SF is a dimensionless number and suitable for the comparison between different adsorbents. The SF of PC 2 vimBr, a Re adsorbent reported in our previous work, 24 towards ReO 4 À against NO 3 À was measured by the same procedure.…”

“…MOFs, [11][12][13][14] carbon materials, [15][16][17][18] and organic adsorbents have been employed as the adsorbents. Organic adsorbents including resins, 19,20 graed materials 21,22 and gels 23,24 take the advantage of high adsorption capacities and easy design and synthesis. Quaternary ammonium 19,23 including pyridinium 25,26 and imidazolium 3,21,27 have been used as the functional groups in many ion-exchange adsorbents.…”

Research progress of radiation synthesis and application of hydrogels

“…如Lim等 [32] 通过辐射法制备的含胶原蛋白的聚乙烯吡咯烷酮/卡 图 10 DNGA的辐射合成方法及形成机理示意图 [30] (网络版彩图) Figure 10 Preparation process and formation mechanism of DNGA by γ-ray irradiation [30] (color online). [22] (网络版彩图) Figure 12 Schematic illustration of the preparation, adsorption of PC 2 vimBr [22] (color online). [44] 于1989年利用辐射法制备水凝胶 伤口敷料后, 有关研究层出不穷 [5,45~48] .…”