2014年2月
Hydrothermal preparation of tobermorite from blast furnace slag for Cs+ and Sr2+ sorption
JOURNAL OF HAZARDOUS MATERIALS
- ,
- ,
- ,
- 巻
- 266
- 号
- 開始ページ
- 174
- 終了ページ
- 181
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.jhazmat.2013.12.024
- 出版者・発行元
- ELSEVIER SCIENCE BV
Al-substituted 11 angstrom-tobermorite was formed by alkaline hydrothermal treatment of blast furnace slag with sodium silicate added at 180 degrees C for 2-48 h. Effects of the hydrothermal treatment time were characterized by XRD, SEM, and isothermal adsorption of N-2. Sorption characteristics of the obtained samples were examined for Cs+ and Sr2+. The sample obtained by hydrothermal treatment for 48 h (HT-48 h) consisted of calcium silicate hydrate (C-S-H), and Al-substituted 11 angstrom-tobermorite. The HT-48 h showed the highest performance for Cs+ and Sr2+ selectivity in the presence of Na+. The interlayer Na+ of Al-substituted 11 angstrom-tobermorite and surface Ca2+ played an important role in selective Cs+ and Sr2+. (C) 2014 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.jhazmat.2013.12.024
- ISSN : 0304-3894
- eISSN : 1873-3336
- Web of Science ID : WOS:000331687100018