期刊
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
卷 307, 期 2, 页码 931-940出版社
SPRINGER
DOI: 10.1007/s10967-015-4470-1
关键词
Potassium hexatitanate; Decontamination; Strontium; Silica-based support
资金
- National Natural Science Foundation of China [21261140335, 91126006, 11405106]
- Scientific Research Foundation for Youth Scholars of Shanghai Jiao Tong University [AF0200003]
K2Ti6O13/SiO2 adsorbents were prepared by sol-gel method and good microcrystalline K2Ti6O13 phases were formed at 500 degrees C. From EDS of the adsorbents before and after adsorption of Sr2+ it showed that there was ion-exchange reaction between K+ and Sr2+. Experimental data on adsorption isotherms were best fit by the Freundlich and Langmuir-Freundlich model. The experimental data indicated that the pseudo-second order kinetic equation was best fit for both single Sr2+ solution and simulated Fukushima wastewater. The pH approaching to neutral displayed a better adsorption behavior for Sr2+ solution. The breakthrough capacity for treatment of Fukushima wastewater increased with decreasing flow rate and increasing bed diameter.
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