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- Title
Rapid and efficient column separation of Re(VII) as a surrogate for Tc(VII) with benzimidazole-based cross-linked poly(ionic liquid)s.
- Authors
Li, Yang; Fu, Xuan; Li, Xu-Xin; Zhang, Fang; Wu, Qiang; Wang, Yun; Yan, Ze-Yi
- Abstract
In this study, the imidazole-based poly(ionic liquid)s (PILs) synthesized by one step method has been applied for the enrichment and recovery of Re(VII), a nonradioactive surrogate of Tc(VII). The anions (Cl−) in the materials could be efficiently exchanged by ReO4− and TcO4− in a rather short time. The PILs-Cl-1 and PILs-Cl-2 before and after adsorption were characterized by BET, SEM, FT-IR and XPS. The adsorption performance of Re(VII) was investigated by batch and column experiments. By contrast, PILs-Cl-2 exhibited a better adsorption performance, and the adsorption capacity reached 94.92 mg/g for ReO4−. In the recovery experiment of TcO4−, the maximum recovery rate of PILs-Cl-2 for TcO4− was 99.9%. The excellent regenerative and recyclable performance of PILs-Cl-2 was also evaluated in the column experiment, which provided an important basis for practical application in industrial field.
- Subjects
POLYMERIZED ionic liquids; IONIC liquids; ADSORPTION capacity; BENZIMIDAZOLES; ADSORPTION kinetics; ADSORPTION (Chemistry)
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2022, Vol 331, Issue 2, p877
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-021-08160-6