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US 2021/0229064 A1Published application
Branched polymer cross-linked graphene oxide adsorbent material
OwnerNicholas GEITNERinventor
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Abstract
A graphene oxide adsorbent material for filtering contaminants from water is formed of graphene oxide plates cross-linked by branched polymer nanoparticles.
Claims20
An adsorbent material, comprising graphene oxide plates cross-linked by branched polymer nanoparticles.
A method of fabricating an adsorbent material comprising:
- preparing stock solutions of Graphene Oxide (GO, 0.2 g/L) and high molecular weight Branched Polyetheleneimine (bPEI, 1 g/L), both with pH adjusted to 7.0;
- combining the prepared stock solutions in a ratio of 10:1 GO:bPEI into a combined solution;
- mixing the combined solution;
- adjusting the pH of the combined solution to 5.5 after mixing the combined solution;
- adding at least one ketone to the combined solution after adjusting the pH to 5.5 to form a synthesized material in water;
- and
- separating the synthesized material from the water and rinsing the separated synthesized material with clean water.
4 more elements
Dependencies are inferred from the claim text.