Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Radioactive Cs removal and treatment have attracted widespread attention since the Chernobyl disaster and the Fukushima Daiichi nuclear plant accident. So far, Prussian blue analogs (PBAs) are recognized as the most effective Cs adsorbents possessing excellent sorption ability and radiation resistance. Here, two types of PBA-based Cs adsorbents, potassium zinc hexacyanocobaltate (Zn-Co PBA) and potassium nickel hexacyanocobaltate (Ni-Co PBA), were prepared by chemical precipitation method. Consequently, Zn-Co PBA and Ni-Co PBA had fast adsorption kinetics, and could remove 86.12% and 91.49% of Cs within 5 min, respectively. Zn-Co PBA and Ni-Co PBA were stable in a wide pH range, with Q of 96.53 and 77.52 mg/g for Cs, respectively, both removing 98.5% of Cs. In addition, Zn-Co PBA can eliminate 93.79% of Cs even in Cs spiked seawater containing high concentration of competitive cations. The adsorption mechanism indicates that the primary process involves ion exchange between K in the adsorbent and Cs.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.envres.2025.121192 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Selective removal of cesium ions from aqueous solution by different metal (Zn/Ni) hexacyanocobaltate.
Environ Res
May 2025
Tianjin Research Institute of Water Transport Engineering, Ministry of Transport, Tianjin, 30000, China. Electronic address:
Radioactive Cs removal and treatment have attracted widespread attention since the Chernobyl disaster and the Fukushima Daiichi nuclear plant accident. So far, Prussian blue analogs (PBAs) are recognized as the most effective Cs adsorbents possessing excellent sorption ability and radiation resistance. Here, two types of PBA-based Cs adsorbents, potassium zinc hexacyanocobaltate (Zn-Co PBA) and potassium nickel hexacyanocobaltate (Ni-Co PBA), were prepared by chemical precipitation method.
View Article and Find Full Text PDFMetal ion exchange in Prussian blue analogues: Cu(ii)-exchanged Zn-Co PBAs as highly selective catalysts for A coupling.
Dalton Trans
March 2019
Centre for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
The occurrence of metal ion exchange in Zn3[Co(CN)6]2 and Cu3[Co(CN)6]2 Prussian blue analogues (Zn-Co and Cu-Co PBAs) was demonstrated for the first time. While Cu(ii) ion exchange easily occurs in Zn-Co PBA, the exchange of Cu(ii) atoms in Cu-Co PBA by Zn(ii) proved to be more difficult. At low to medium Cu(ii) loadings, the catalytic activity of the exchanged PBAs for the A3 coupling reaction of benzaldehyde, piperidine and phenylacetylene was higher than that of the bimetallic PBAs and that of multi metal PBAs of similar composition prepared by co-precipitation.
View Article and Find Full Text PDFSynthesis, crystal structure, and electron paramagnetic resonance investigations of heteronuclear Co(II)/Zn(II) and Co(II)/Cd(II) coordination polymers.
Inorg Chem
January 2011
Fakultät für Chemie und Mineralogie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany.
The crystal structures of five new Co(II), Zn(II), and Cd(II) coordination polymers based on pyridine-substituted triazolyl carboxylates are reported. The two isomorphous compounds (∞)³[M(Me-3py-pba)₂] (M = Zn, Co) possess {6⁶} topology (dia). In order to obtain heteronuclear compounds, we synthesized Co(II)-substituted Zn(II) and Cd(II) coordination polymers.
View Article and Find Full Text PDF