POROUS NANO PARTICLE TITANIUM DIOXIDE PHOTOCATALYST HAVING NANO SIZED PORES AND THE METHOD MANUFACTURING PIGMENT

摘要

The present invention is to form a pore in the anatase crystalline phase to the manufacture, and 5 to 100㎚ particle diameter of the particulate and center porosity therein titanium dioxide particles of sizes of about 0.8㎚, nano-sized in order to promote the effect of the titanium dioxide catalyst photolysis , in addition to adsorption, desorption function for toxic gases and bacteria, the pigment manufacturing method using the same and a porous titanium dioxide photocatalyst having pores having a nano-sized significantly improves the photodegradable. Including such a titanium dioxide photocatalyst, air filtration, water purification, relates to applications that can be manufactured a variety of functional coating and the coating material and the white pigment, such as UV-absorbing, hydrophilic and antimicrobial, the nano-size according to the invention the internal porosity of the particles by the production method of the titanium dioxide photocatalyst having a micro pore diameter of the pores inside the particles of 0.01 to 5㎚ having pores, the pores in the ultra-fine particles made of the inside of the nano-sized titanium dioxide of the anatase type a porous titanium dioxide photocatalyst, and by using this additive with potassium (K), phosphorous (P), aluminum (Al), silicon (Si), such as the addition of a zero degree of whiteness improvement and stabilization by a high purity, particle size 50 to 100㎚ It characterized in that producing a powder of anatase type titanium dioxide pigments. ; Of the titanium dioxide photocatalyst, the nanoscale pores, the fine particles, anatase-type, porous