TITLE

Mesoporous silica (KIT-6) derivatized with hydroxyquinoline functionalities as a selective adsorbent of uranium(VI)

AUTHOR(S)
Zhu, Lu; Shi, Xiangchen; Song, Lijuan; Sun, Yalou; Chen, Suwen; Wu, Wangsuo
PUB. DATE
May 2016
SOURCE
Journal of Radioanalytical & Nuclear Chemistry;May2016, Vol. 308 Issue 2, p381
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Two modified mesoporous silica (KIT-6) materials for absorbing uranium(VI) were prepared respectively via post-grafting of 8-hydroxyquinoline and 8-hydroxyquinoline onto surface of KIT-6, which were characterized by FT-IR, NMR, TEM, and sorption/desorption analysis. Effect of pH values, contact time, ionic strength, solid-liquid ratio, temperature, and coexisting ions on sorption behavior of the modified KIT-6 were also investigated. Typical sorption isotherms (Langmuir and Freundlich) were used to determine the sorption process and the maximum U(VI) sorption capacity. The results indicate that the two modified KIT-6 exhibit better selective sorption of U(VI) as compared to the original KIT-6.
ACCESSION #
114436257

 

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