A kind of photocatalyst substrate, including a substrate, have a first surface and a second surface and one first photocatalyst layer, on the first surface of position what substrate. This is created another aspect and discloses a kind of with fragrant and deodorization functions substrates, including a substrate, has a first surface and a second surface, a photocatalyst layer, on the first surface of position what substrate and an essence layer, on the second surface of position what substrate.一種光觸媒基材，包括一基材，具有一第一表面和一第二表面，以及一第一光觸媒層，位於基材之第一表面上。本創作另一態樣揭示一種具有散發香味和除臭功能的基材，包括一基材，具有一第一表面和一第二表面、一光觸媒層，位於基材之第一表面上，以及一香精層，位於基材之第二表面上。
