Ion-exchangers in radioactive waste management Part XIV: Removal behavior of hydrous titanium oxide and sodium titanate for Cs(I) |
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| Authors: | S. P. Mishra S. S. Dubey D. Tiwari |
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| Affiliation: | (1) Nuclear and Radiochemistry Laboratory, Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi, 221005, India;(2) Present address: Department of Chemistry, National Institute of Technology, Jamshedpur, 831014, India |
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| Abstract: | The removal behavior of hydrous titanium oxide and sodium titanate for Cs(I) from aqueous solutions by radiotracers was studied. Batch experiments revealed that an increase in Cs concentration (10–8 to 10–2 mol·dm–3), temperature (298 to 328 K) and pH (2.50 to 10.20) apparently enhanced the uptake of Cs(I) on hydrous titanium oxide whereas a high degree of uptake of Cs(I) on sodium titanate was almost unaffected by a change in adsorption temperature (298 to 328 K) and pH (2.50 to 10.20). Both systems follow Freundlich adsorption isotherm. Uptake of Cs(I) on hydrous titanium oxide obeys first order rate law. According to thermodynamic data the uptake is endothermic and apparently  irreversible in nature.This revised version was published online in November 2005 with corrections to the Cover Date. |
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