A photocatalytic air purification apparatus and method of fabricating the same. The apparatus may be configured to include a light source surrounded by one or more porous plate substrates. An inner and outer surface of each plate substrate may be coated with a photocatalyst material. The light source may be placed in a direction parallel to the direction of an air flow and in optical proximity to the plate substrates in order to activate the photocatalyst coating. The photocatalyst coating associated with the plate substrates may be activated by absorbing light with a wavelength shorter than a cut-off activation wavelength from the light source in order to capture and decompose organic components and airborne pollutants in the air by the activated photocatalyst.