Organic-inorganic composite catalyst, air purification device including the organic-inorganic composite catalyst, and method of regenerating the organic-inorganic composite catalyst

An organic-inorganic composite catalyst comprising:

• a porous carbonaceous particle;
• a first compound;
• and
• a metal oxide particle,
• wherein the first compound and the metal oxide particle are supported on the porous carbonaceous particle,
• the first compound comprises a polar functional group, an anion, or a combination thereof,
• the metal oxide is represented by the formula MaOb, wherein 0<a≤4, 0<b≤5, and M is a metal of Groups 2 to 16 of the Periodic Table of Elements, or a combination thereof, and
• the organic-inorganic composite catalyst is configured to remove a second compound from an unpurified air flow comprising the second compound,
• wherein a content of the first compound is in a range of about 0.1 weight percent to about 5 weight percent, based on a total weight of the organic-inorganic composite catalyst,
• a content of the metal oxide is in a range of about 0.1 weight percent to about 5 weight percent, based on the total weight of the organic-inorganic composite catalyst, and
• a weight ratio of the first compound to the metal oxide particle is in a range of about 99:1 to about 1:99.

An organic-inorganic composite catalyst comprising:

• a porous carbonaceous particle;
• a first compound;
• and
• a metal oxide particle,
• wherein the first compound comprises ethylene urea, urea, sodium metabisulfite, poly(m-xylene adipamide), poly(ethylene terephthalate), iodide, tetrabromoethane, isopropyl iodide, or a combination thereof,
• wherein the first compound and the metal oxide particle are supported on the porous carbonaceous particle,
• the first compound comprises a polar functional group, an anion, or a combination thereof,
• the metal oxide is represented by the formula MaOb, wherein 0<a≤4, 0<b≤5, and M is a metal of Groups 2 to 16 of the Periodic Table of Elements, or a combination thereof, and
• the organic-inorganic composite catalyst is configured to remove a second compound from an unpurified air flow comprising the second compound.