Assorted functionality-appended UiO-66-NH₂ for highly efficient uranium(vi) sorption at acidic/neutral/basic pH.

ABSTRACT: A series of functionalized metal organic frameworks (MOFs) were synthesized by the post-synthetic modification (PSM) of Zr(iv)-containing UiO-66-NH₂ MOFs using covalent grafting with various functional groups utilizing pendant -NH₂ moieties. The tethering of amide (with/without pendant carboxylic acid), iminopyridine, phoshinic amide and sulphur-containing functionalities produced a library of eight different UiO-66-NH₂ derivatives. The functionalized MOFs were characterized by FT-IR spectroscopy, NMR, PXRD, TGA, SEM-EDX and BET surface area analysis. Uranyl ion extraction with the functionalized MOFs was investigated in acidic/neutral/basic conditions (pH 1 to 9). This work presents a comprehensive study of different functionalized MOFs to investigate the

SUBMITTER: Tripathi S 

PROVIDER: S-EPMC9051904 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature