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US 12,686,616 B2Granted
Modified multi-walled carbon nanotubes including multi-walled carbon nanotubes and carboxylate moieties and related methods
AssigneesSaudi Arabian Oil Company, King Fahd University of Petroleum and Minerals
InventorsTawfik A. Saleh, Elaf A. Ahmed, Danah Almoshawer, Hasan Al Abdulgader, Abdullahi B. Olabintan
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Abstract
The disclosure relates to modified multi-walled carbon nanotubes (MWCNTs) that include MWCNTs with carboxylate moieties (e.g., laurate moieties) covalently bonded thereto, and related methods.
Claims20
A modified multi-walled carbon nanotube (MWCNT) comprising:
- a MWCNT comprising an outer surface;
- and
- a plurality of C8-26 carboxylate moieties covalently bonded to the multi-walled carbon nanotube.
A method comprising:
- contacting multi-walled carbon nanotubes (MWCNTs) comprising an outer surface functionalized with hydroxyl groups with C8-26 carboxylic acid to form a plurality of functionalized MWNCTs, each functionalized MWCNT comprising a MWCNT having C8-26 carboxylate moieties covalently bonded thereto.
A method comprising:
- i) contacting modified MWCNTs comprising MWCNTs with C8-26 carboxylate moieties covalently attached with an aqueous solution comprising an organic contaminant so that the modified MWCNTs absorbs at least a portion of the organic contaminant.
Dependencies are inferred from the claim text.