The present invention relates to a structure of a photocatalytic filter and a production method thereof. More specifically, the present invention relates to a structure of a photocatalytic filter with increased photocatalytic reaction efficiency by enlarging the surface area of the photocatalytic filter to which ultraviolet light is irradiated. The present invention further relates to a production method thereof and an air purifier comprising the filter. The photocatalytic filter (80) is divided by partition (81) and is formed by a plurality of cells (83) which are adjacent to each other and have air flowing paths. A groove form is provided at an end portion of the partition, bringing the enlargement of the surface area of the end portion.COPYRIGHT KIPO 2016본 발명은 광촉매 필터의 구조 및 그 제조방법에 관한 것으로, 보다 상세하게는 자외선이 조사되는 광촉매 필터의 표면적을 넓혀 광촉매 반응 효율을 높인 광촉매 필터의 구조 및 그 제조방법, 그리고 이러한 필터를 적용한 공기 정화기에 관한 것이다.본 발명은 격벽(81)에 의해 구분되며 공기유동로가 형성된 복수 개의 셀(83)이 서로 인접하여 형성된 광촉매 필터(80)로서, 격벽의 단부에 홈 형상이 구비되어 단부의 표면적이 증가된 광촉매 필터를 제공한다.
