Journal
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
Volume 327, Issue 2, Pages 811-819Publisher
SPRINGER
DOI: 10.1007/s10967-020-07550-6
Keywords
U(VI); Metal– organic frameworks (MOFs); Sorption; UiO-66-NH2; Schiff-base
Funding
- National Natural Science Foundation of China [21876073]
- Fundamental Research Funds for the Central Universities [lzujbky-2020-kb11]
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In this study, a metal-organic framework, UiO-66-NH2, was designed, synthesized and characterized. Functionalized materials UiO-66-Sal and UiO-66-MHBA were obtained by grafting Salicylaldehyde and 2,4-dihydroxybenzaldehyde onto UiO-66-NH2 via post-treatment. The effects of various factors on U(VI) adsorption were studied, with experimental results fitting well with pseudo-second-order kinetic equation and thermodynamic adsorption model.
A metal-organic framework, UiO-66-NH2, was designed, synthesized and characterized in this study. By conducting solvothermal method, Salicylaldehyde (Sal) and 2,4-dihydroxybenzaldehyde (MHBA) were grafted onto UiO-66-NH2 via post-treatment to obtain the functionalized material UiO-66-Sal and UiO-66-MHBA. The three materials above were characterized, and the effects of solid-liquid ratio, pH, ionic strength, and oscillation time on U(VI) adsorption were studied. The relevant experimental results fitted well with pseudo-second-order kinetic equation and thermodynamic adsorption model.
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