عنوان مجله
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SEPARATION SCIENCE AND TECHNOLOGY
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چکیده
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The removal of Th(IV) and U(VI) by calcinated, non-calcinated, and methyl grafted SBA-15
(abbreviated as SBA-15, SBA-15-NC and SBA-15-MG, correspondingly) were compared to elucidate
the role of pores and surface adsorption sites on SBA-15 adsorbents. It was proposed that the
contribution of pores and surface-active sites of SBA-15 increases its higher adsorption capacity
with respect to the other examined adsorbents. The kinetic studies revealed that the adsorption
and also desorption occurred initially on the surface and then to the pores. Adsorption/desorption
of the ions into pores was occurred with slow kinetics.
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