PROBLEM TO BE SOLVED: To provide the water handling article or the water handling member that can sterilize and clean a water-contacting surface by a self-cleaning mechanism using a photocatalyst, wherein the water-handling article or the water-handling member has a large degree of freedom in an arrangement location of an ultraviolet light source, can more reliably activate the photocatalyst disposed on a wetted surface to be sterilized and washed, and in some cases, can sterilize an atmosphere near the water-contacting surface.SOLUTION: The water-handling article such as a toilet device having an exposure surface and having a surface exposure portion where at least a part of the exposure surface is the water-contacting surface that can come into contact with water in a liquid state, forms the photocatalyst-containing layer containing the photocatalyst on an excitation light emission surface from which excitation light for exciting the photocatalyst can be emitted, which is used as the water-contacting surface, and further, excites the photocatalyst by ultraviolet ray irradiation from a back surface (a rear surface) of the photocatalyst-containing layer so as to excite the photocatalyst.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2019,JPO&INPIT【課題】 光触媒を使用したセルフクリーニング機構により接水表面の殺菌・洗浄を行うことができる水取扱い物品又は水取扱い部材であって、紫外線光源の配置場所の自由度が大きく、除菌・洗浄したい接水表面上に配置された光触媒をより確実に活性化することができ、更に場合によっては接水表面近傍の雰囲気の殺菌も行うことが可能な水取扱い物品又は水取扱い部材を提供する。【解決手段】 露出表面を有し、当該露出表面の少なくとも一部が液体状態の水と接触し得る接水表面である表面露出部を有するトイレ装置などの水取扱物品において、光触媒を励起する励起光を出射可能な励起光出射面上に光触媒を含んでなる光触媒含有層を形成して、これを接水表面とし、更に光触媒含有層の裏面(背面)から紫外線を照射して光触媒を励起するようにする。【選択図】図1
