| The sorption mechanisms of Th(Ⅳ) on attapulgite |
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| 基金项目： | supported by the National Natural Science Foundation of China (20871062, J1030932); the Fundamental Research Funds for the Central Universities (lzujbky-2010-215); the National Synchrotron Radiation Innovation Foundation of Ministry of Education (20090137S) |
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| 摘 要： | The surface properties of intrinsic and activated attapulgite were studied using potentiometric titration.The sorption mechanisms of Th(IV) on intrinsic and activated attapulgite were investigated by employing surface complexation model and FITEQL 3.2 code.The results indicated that the sorption sites of intrinsic attapulgite involved in the sorption process were main ion exchange site(≡ XNa/K),strong site(≡ SsOH) and weak site(≡ SwOH),while only strong site(≡ SsOH) and weak site(≡ SwOH) were predominant fo...
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