Porous catalytic matrices for elimination of toxicants found in tobacco combustion products
AssigneeMassachusetts Institute of Technology
InventorsLev E. Bromberg, Trevor Alan Hatton
Life of this patent
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Abstract
Described herein are compositions and methods for capturing carbonylic or phenolic toxicants, or converting these toxicants into less volatile compounds. The toxicants, which may be a component of cigarette smoke, may be captured by physical or chemical adsorption, absorption, or entrapment.
Claims32
A method of reducing the quantity of a toxicant in a fluid, comprising:
- contacting the fluid with a hybrid MOF matrix,
- wherein:
- the hybrid MOF matrix comprises (i) an MOF matrix, wherein the MOF matrix comprises metal ions or clusters coordinated to polydentate organic ligands, and the metal ions or clusters comprise Cr, Fe, Zn, Al, Ni, or Cu, and (ii) a dopant, wherein the dopant is a supernucleophilic amine;
- the fluid is a gas;
- and
- the toxicant is a carbonylic compound or a phenolic compound.
A method of adsorbing or absorbing a carbonylic compound or a phenolic compound, comprising
- contacting the carbonylic compound or phenolic compound with a hybrid MOF matrix, wherein the hybrid MOF matrix comprises (i) an MOF matrix, wherein the MOF matrix comprises metal ions or clusters coordinated to polydentate organic ligands, and the metal ions or clusters comprise Cr, Fe, Zn, Al, Ni, or Cu, and (ii) a dopant, wherein the dopant is a supernucleophilic amine.
A method of catalyzing the conversion of a carbonylic compound to a non-carbonylic product, comprising
- contacting the carbonylic compound with a hybrid MOF matrix for an amount of time, wherein the hybrid MOF matrix comprises (i) an MOF matrix, wherein the MOF matrix comprises metal ions or clusters coordinated to polydentate organic ligands, and the metal ions or clusters comprise Cr, Fe, Zn, Al, Ni, or Cu, and (ii) a dopant, wherein the dopant is a supernucleophilic amine, thereby forming the non-carbonylic product.
A method of catalyzing the conversion of a phenolic compound to a non-phenolic product or a polymeric product, comprising
- contacting the phenolic compound with a hybrid MOF matrix for an amount of time, wherein the hybrid MOF matrix comprises (i) an MOF matrix, wherein the MOF matrix comprises metal ions or clusters coordinated to polydentate organic ligands, and the metal ions or clusters comprise Cr, Fe, Zn, Al, Ni, or Cu, and (ii) a dopant, wherein the dopant is a supernucleophilic amine, thereby forming the non-phenolic product or the polymeric product.
A method of reducing the quantity of a toxicant in a fluid, comprising:
- contacting the fluid with a hybrid MOF matrix, wherein:
- the hybrid MOF matrix comprises (i) an MOF matrix, wherein the MOF matrix comprises metal ions or clusters coordinated to polydentate organic ligands, and the metal ions or clusters comprise Cr, Fe, Zn, Al, Ni, or Cu, and (ii) a dopant, wherein the dopant is phosphotungstic acid;
- the fluid is a gas;
- and
- the toxicant is a carbonylic compound or a phenolic compound.
A method of reducing the quantity of a toxicant in a fluid, comprising contacting the fluid with MIL-101, strongly acidic MIL-101, or MIL101/PTA, wherein
- the fluid is a gas;
- and
- the toxicant is a carbonylic compound or a phenolic compound.
Dependencies are inferred from the claim text.