PURPOSE: A photocatalytic purifying apparatus is provided to improve the purification performance of water or air by maximizing the contact area to polluted water and air, and to enable to effectively flow as the flow has an enough flow rate.CONSTITUTION: A photocatalytic purifying apparatus comprises a body (200) a fan motor assembly inner plates (400) and luminescence lamps (500). Multiple inner plates are successively installed on the inner wall of the body with a constant interval with top and bottom. The luminescence lamps penetrate into all the inner plates, and irradiate light to the photocatalytic substance on the body and both sides of the inner plates. The inner plate comprises a ventilation part a blocking part and lamp mounting parts. The ventilation part becomes a path of fluid by being punched on the whole upper surface of the inner plate with a constant interval. The blocking part blocks the flow of fluid. The lamp mounting parts are arranged on the same vertical extension line so that the luminescence lamps are penetrated into the whole inner plates. The blocking parts of the adjacent inner plates are positioned at the upper and lower positions of the ventilation part. The ventilation parts of the adjacent inner plates are positioned at the upper and lower positions of the blocking part. Fluid is able to flow while bypassing.COPYRIGHT KIPO 2013본 발명의 실시예에 따른 광촉매 정화장치는, 정화를 위해 이동되는 오염된 물과 공기가 다수의 이너 플레이트 사이에서 반응을 위한 충분한 시간 동안 체류할 수 있으며, 오염된 물과 공기의 접촉면적을 최대화 하여 물 또는 공기의 정화 능력이 향상시킴과 동시에 충분한 유량의 이동이 가능하여 효과적인 유동을 가능하게 하는 것을 특징으로 한다.
