Chromium and arsenic separations using porous organic frameworks
AssigneeThe Regents of the University of California
InventorsJeffrey R. Long, Adam Andrew Uliana
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Abstract
The disclosure provides for porous organic frameworks functionalized to comprise pendant amino-dial groups and/or amino-polyol groups, and uses thereof, including for use in selectively capturing and/or separating anionic contaminants, such as chromium and arsenic oxyanions, including Cr(O), Cr(ll), Cr (III), Cr (IV), and/or Cr (VI), from other components.
Claims33
A method for the selective capture or separation of anionic compound(s), and/or anionic species, comprising:
- contacting the anionic compound(s), and/or the anionic species with a porous adsorbent that has been functionalized to comprise pendant amino-diol groups and/or amino-polyol groups.
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A device comprising a porous adsorbent that has been functionalized to comprise pendant amino-diol groups and/or amino-polyol groups.
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A functionalized porous organic framework (PAF) having tetrahedral carbon nodes connected by linkers having the general structure of:
- wherein,
- R1-R12 are each independently selected from H, D, an optionally substituted functional group (FG), an optionally substituted (C1-C9)alkyl, an optionally substituted (C1-C9)alkenyl, an optionally substituted (C1-C9)alkynyl, an optionally substituted (C1-C5) heteroalkyl, an optionally substituted (C1-C5) heteroalkenyl, an optionally substituted (C1-C5) heteroalkynyl, an optionally substituted cycloalkyl, an optionally substituted aryl, an optionally substituted heterocycle, wherein at least one of R1-R12 is an FG comprising a secondary or tertiary amine;
- and
- n is an integer selected from 0, 1, 2, or 3;
- wherein, the optionally substituted FG comprising a secondary and/or a tertiary amine does not have the structure of
Dependencies are inferred from the claim text.