2012年7月
Study on selective separation of cesium from high level liquid waste using a macroporous silica-based supramolecular recognition absorbent
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
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- 巻
- 293
- 号
- 1
- 開始ページ
- 13
- 終了ページ
- 20
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1007/s10967-012-1738-6
- 出版者・発行元
- SPRINGER
A macroporous silica-based supramolecular recognition absorbent (Calix[4] + Dodecanol)/SiO2-P, was prepared by successive impregnation and fixing the 1,3-[(2,4-diethylheptylethoxy)oxy]-2,4-crown-6-Calix[4]arene (Calix[4]arene-R14) and its molecule modifier 1-Dodecanol onto SiO2 silica-based polymer support. The characterization of (Calix[4] + Dodecanol)/SiO2-P was examined by thermal gravimetry and differential thermal analysis and electron probe microanalysis. Relatively large separation factors of Cs and other metal ions (alpha (Cs/M) (n+) ) above 60 were obtained in the presence of 3 M HNO3. The adsorption data of Cs(I) fitted well with Langmuir isotherm and the maximum adsorption capacity was estimated to be 0.19 mmol g(-1). The Cs(I) in 3 M HNO3 were also effectively adsorption on (Calix[4] + Dodecanol)/SiO2-P in the column operation, and the loaded Cs(I) was successfully eluted with an eluent of H2O. The column packed with (Calix[4] + Dodecanol)/SiO2-P had excellent reusability after three cycles.
- リンク情報
- ID情報
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- DOI : 10.1007/s10967-012-1738-6
- ISSN : 0236-5731
- eISSN : 1588-2780
- Web of Science ID : WOS:000305228200003