Surface-functionalized mesoporous carbon materials
First Claim
1. A functionalized mesoporous carbon composition comprising a mesoporous carbon scaffold having:
- (i) mesopores in which polyvinyl polymer grafts are covalently attached, and (ii) macropores having a size greater than 50 nm and up to 200 nm, wherein said mesopores have a size of at least 2 nm and up to 50 nm, and said carbon is elemental carbon.
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Accused Products
Abstract
A functionalized mesoporous carbon composition comprising a mesoporous carbon scaffold having mesopores in which polyvinyl polymer grafts are covalently attached, wherein said mesopores have a size of at least 2 nm and up to 50 nm. Also described is a method for producing the functionalized mesoporous composition, wherein a reaction medium comprising a precursor mesoporous carbon, vinyl monomer, initiator, and solvent is subjected to sonication of sufficient power to result in grafting and polymerization of the vinyl monomer into mesopores of the precursor mesoporous carbon. Also described are methods for using the functionalized mesoporous carbon, particularly in extracting metal ions from metal-containing solutions.
223 Citations
27 Claims
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1. A functionalized mesoporous carbon composition comprising a mesoporous carbon scaffold having:
- (i) mesopores in which polyvinyl polymer grafts are covalently attached, and (ii) macropores having a size greater than 50 nm and up to 200 nm, wherein said mesopores have a size of at least 2 nm and up to 50 nm, and said carbon is elemental carbon.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- 11. A method for fabricating a functionalized mesoporous carbon composition, the method comprising subjecting a reaction medium comprising a precursor mesoporous carbon, vinyl monomer, initiator, and solvent to sonication of sufficient power to result in grafting and polymerization of said vinyl monomer into mesopores of said precursor mesoporous carbon to produce said functionalized mesoporous carbon composition, wherein said mesopores have a size of at least 2 nm and up to 50 nm and wherein said mesoporous carbon scaffold also contains macropores having a size greater than 50 nm and up to 200 nm, and said carbon is elemental carbon.
- 22. A method for extracting metal ions from a liquid solution containing metal ions, the method comprising contacting said liquid solution with a functionalized mesoporous carbon composition comprising a mesoporous carbon scaffold having mesopores in which polyvinyl polymer grafts are covalently attached, wherein at least a portion of said polyvinyl polymer grafts are comprised of heteroatom-containing functional groups that can bind to said metal ions, wherein said mesopores have a size of at least 2 nm and up to 50 nm, and wherein said mesoporous carbon scaffold also contains macropores having a size greater than 50 nm and up to 200 nm, and said carbon is elemental carbon.
Specification