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Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium

A novel microporous three-dimensional pomegranate-like micro-scavenger cage (P-MSC) composite has been synthesized by immobilization of iron phyllosilicates clay onto a Prussian blue (PB)/alginate matrix and tested for the removal of radioactive cesium from aqueous solution. Experimental results sho...

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Autores principales: Jang, Sung-Chan, Kang, Sung-Min, Haldorai, Yuvaraj, Giribabu, Krishnan, Lee, Go-Woon, Lee, Young-Chul, Hyun, Moon Seop, Han, Young-Kyu, Roh, Changhyun, Huh, Yun Suk
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5137142/
https://www.ncbi.nlm.nih.gov/pubmed/27917913
http://dx.doi.org/10.1038/srep38384
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author Jang, Sung-Chan
Kang, Sung-Min
Haldorai, Yuvaraj
Giribabu, Krishnan
Lee, Go-Woon
Lee, Young-Chul
Hyun, Moon Seop
Han, Young-Kyu
Roh, Changhyun
Huh, Yun Suk
author_facet Jang, Sung-Chan
Kang, Sung-Min
Haldorai, Yuvaraj
Giribabu, Krishnan
Lee, Go-Woon
Lee, Young-Chul
Hyun, Moon Seop
Han, Young-Kyu
Roh, Changhyun
Huh, Yun Suk
author_sort Jang, Sung-Chan
collection PubMed
description A novel microporous three-dimensional pomegranate-like micro-scavenger cage (P-MSC) composite has been synthesized by immobilization of iron phyllosilicates clay onto a Prussian blue (PB)/alginate matrix and tested for the removal of radioactive cesium from aqueous solution. Experimental results show that the adsorption capacity increases with increasing the inactive cesium concentration from 1 ppm to 30 ppm, which may be attributed to greater number of adsorption sites and further increase in the inactive cesium concentration has no effect. The P-MSC composite exhibit maximum adsorption capacity of 108.06 mg of inactive cesium per gram of adsorbent. The adsorption isotherm is better fitted to the Freundlich model than the Langmuir model. In addition, kinetics studies show that the adsorption process is consistent with a pseudo second-order model. Furthermore, at equilibrium, the composite has an outstanding adsorption capacity of 99.24% for the radioactive cesium from aqueous solution. This may be ascribed to the fact that the AIP clay played a substantial role in protecting PB release from the P-MSC composite by cross-linking with alginate to improve the mechanical stability. Excellent adsorption capacity, easy separation, and good selectivity make the adsorbent suitable for the removal of radioactive cesium from seawater around nuclear plants and/or after nuclear accidents.
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spelling pubmed-51371422017-01-27 Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium Jang, Sung-Chan Kang, Sung-Min Haldorai, Yuvaraj Giribabu, Krishnan Lee, Go-Woon Lee, Young-Chul Hyun, Moon Seop Han, Young-Kyu Roh, Changhyun Huh, Yun Suk Sci Rep Article A novel microporous three-dimensional pomegranate-like micro-scavenger cage (P-MSC) composite has been synthesized by immobilization of iron phyllosilicates clay onto a Prussian blue (PB)/alginate matrix and tested for the removal of radioactive cesium from aqueous solution. Experimental results show that the adsorption capacity increases with increasing the inactive cesium concentration from 1 ppm to 30 ppm, which may be attributed to greater number of adsorption sites and further increase in the inactive cesium concentration has no effect. The P-MSC composite exhibit maximum adsorption capacity of 108.06 mg of inactive cesium per gram of adsorbent. The adsorption isotherm is better fitted to the Freundlich model than the Langmuir model. In addition, kinetics studies show that the adsorption process is consistent with a pseudo second-order model. Furthermore, at equilibrium, the composite has an outstanding adsorption capacity of 99.24% for the radioactive cesium from aqueous solution. This may be ascribed to the fact that the AIP clay played a substantial role in protecting PB release from the P-MSC composite by cross-linking with alginate to improve the mechanical stability. Excellent adsorption capacity, easy separation, and good selectivity make the adsorbent suitable for the removal of radioactive cesium from seawater around nuclear plants and/or after nuclear accidents. Nature Publishing Group 2016-12-05 /pmc/articles/PMC5137142/ /pubmed/27917913 http://dx.doi.org/10.1038/srep38384 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Jang, Sung-Chan
Kang, Sung-Min
Haldorai, Yuvaraj
Giribabu, Krishnan
Lee, Go-Woon
Lee, Young-Chul
Hyun, Moon Seop
Han, Young-Kyu
Roh, Changhyun
Huh, Yun Suk
Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium
title Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium
title_full Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium
title_fullStr Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium
title_full_unstemmed Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium
title_short Synergistically strengthened 3D micro-scavenger cage adsorbent for selective removal of radioactive cesium
title_sort synergistically strengthened 3d micro-scavenger cage adsorbent for selective removal of radioactive cesium
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5137142/
https://www.ncbi.nlm.nih.gov/pubmed/27917913
http://dx.doi.org/10.1038/srep38384
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