초록 ▼

The present invention provides a porous titania, which has an anatase-form crystalline structure, an anatase-form crystallite diameter of 3 nm to 10 nm, a degree of anatase crystallinity of 60% or more, a BET specific surface area of 10 m2/g or more, a total pore volume of 0.05 cm3/g or more, and a

The present invention provides a porous titania, which has an anatase-form crystalline structure, an anatase-form crystallite diameter of 3 nm to 10 nm, a degree of anatase crystallinity of 60% or more, a BET specific surface area of 10 m2/g or more, a total pore volume of 0.05 cm3/g or more, and a volume for pores having a pore radius of 1 nm or more of 0.02 cm3/g or more, and the porous titania and the catalyst comprising the porous titania of the present invention exhibit an excellent catalytic activity for removal of nitrogen oxides, oxidation of organic substances, decomposition of dioxine compounds, as well as decomposition and removal of organic solvents, agricultural chemical and surfactant.

대표청구항 ▼

1. A method for producing a porous titania, which comprises the steps of:dissolving a titanium alkoxide in a solvent to give a titanium alkoxide solution; adding a mixed solution containing water and a solvent to the titanium alkoxide solution to perform hydrolysis and simultaneous polymerization to

1. A method for producing a porous titania, which comprises the steps of:dissolving a titanium alkoxide in a solvent to give a titanium alkoxide solution; adding a mixed solution containing water and a solvent to the titanium alkoxide solution to perform hydrolysis and simultaneous polymerization to give a polymer solution; adding a fatty acid to the titanium alkoxide solution or the polymer solution; separating the polymer containing the fatty acid from the polymer solution; and calcining the polymer containing the fatty acid.