The present invention relates to a radial space sterilizer which makes a photocatalytic material and broadband ultraviolet rays to cause a combined photocatalytic oxidation reaction to sterilize and deodorize the air. Specifically, the present invention relates to a radial space sterilizer which improves effects of sterilizing and deodorizing the air by including a sterilization module that is independently installed within a main body such that the sterilization module is easily replaced, and post management of the sterilization module is conveniently performed, providing an air flow passage to the sterilization module, and sterilizing and deodorizing the air flown in the air flow passage using the photocatalytic oxidation reaction. A method of preparing a multifunctional photocatalyst according to the present invention is prepared by injecting 50 to 57 parts by weight of silicon oxide, 38 to 41 parts by weight of titanium dioxide, 2 to 4 parts by weight of platinum, 1 to 1.5 part by weight of copper, 1.5 to 2.5 parts by weight of rhodium, and 0.5 to 1 part by weight of silver into a mixing container to mix the raw materials for 2 hours, injecting the mixture into a heating container to melt the mixture to a temperature of 1300 to 1500C, and solidifying the melted mixture to prepare the multifunctional photocatalyst formed of crystalline such as glass. A cell for sterilizing and purifying air using the multifunctional photocatalyst according to the present invention is formed in a spiral structure which is formed in a spiral shape while continuously forming a plurality of creases in a radius direction on a strip of a predetermined width that forms a base plate of the cell.본 발명은 광촉매 물질과 광대역 자외선이 결합된 광촉매 산화반응을 일으켜 공기를 살균 및 탈취하는 방사형 공간 살균기에 관한 것으로, 상세하게는 본체 내에 독립적으로 설치되어 교체가 용이하고 사후 관리가 편리한 살균모듈을 구비하여 공기 유동 통로를 제공하고, 내부로 유입된 공기를 광촉매 산화반응을 이용하여 살균 및 탈취하여 공기의 살균 및 탈취 효과를 향상시키는 방사형 공간 살균기에 관한 것이다.본 발명은 산화규소 50~57중량부, 이산화티타늄 38~41중량부, 백금 2~4중량부, 구리 1~1.5중량부, 로듐 1.5~2.5중
