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Continuous-flow separation of cesium ion by ammonium molybdophosphate immobilized in a silica microhoneycomb (AMP-SMH)
- Source :
- Adsorption. 25:1089-1098
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- Monolithic cesium ion (Cs+) adsorbents were synthesized via the directional freezing of a silica hydrogel containing ammonium molybdophosphate (AMP) particles, followed by freeze-drying. The adsorbents have a honeycomb-like structure with nearly straight microchannels (approximately 21 µm in diameter) running through them and with AMP particles partially embedded intact within the channel walls. Because of its honeycomb-like structure, the adsorbent, denoted as AMP silica microhoneycomb (AMP-SMH), achieves a significantly lower pressure drop than a typical column packed with spherical particles with similar diffusion path lengths for Cs+ when water was passed through it (about 35-times lower). Comparison of breakthrough curves between the AMP-SMH and columns packed with particles by numerical simulation also indicates that AMP-SMH shows shorter length of unused bed values. These results demonstrate that the AMP-SMH shows a high performance in the continuous separation of Cs+ due to their unique microhoneycomb structure.
- Subjects :
- Materials science
Continuous flow
General Chemical Engineering
Drop (liquid)
Analytical chemistry
chemistry.chemical_element
02 engineering and technology
Surfaces and Interfaces
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Ion
Adsorption
chemistry
Caesium
Lower pressure
Ammonium molybdophosphate
0210 nano-technology
Subjects
Details
- ISSN :
- 15728757 and 09295607
- Volume :
- 25
- Database :
- OpenAIRE
- Journal :
- Adsorption
- Accession number :
- edsair.doi...........bd922a6844fe3101f0ff9b992e7e894e