Photocatalyst, methods for deodorizing, and methods for making a deodorizer system

Disclosed herein are deodorizer systems and methods for making and using the same. In one embodiment, a deodorizer system comprises: a mesh, nanoparticle titania coating on the mesh, and a frame disposed around a periphery of the mesh such that the mesh is configured to be in optical communication with sunlight and for receiving contaminated gas to be deodorized. The mesh has an open area of greater than or equal to about 35%, and has greater than or equal to 6,400 openings/in2. In another embodiment, a deodorizer system comprises: a mesh disposed in a housing and for receiving contaminated gas to be deodorized, nanoparticle titania coating on the mesh, and a UV light source disposed to be in optical communication with the mesh. The mesh has an open area of greater than or equal to about 35%, and has greater than or equal to 6,400 openings/in2.