精细陶瓷（先进陶瓷 先进技术陶瓷） - 通过亚甲基蓝降解测定水性介质中表面的光催化活性

[中文适用范围]： 本文件规定了通过甲基蓝（MB）在水介质中的人工辐照降解测定表面光催化活性的方法，并表征光催化活性表面在辐射暴露于紫外线下对溶解有机分子的降解活性。本文件不适用于表征在可见光下使用的表面的光催化活性。对于低光子效率的表面，可能存在光催化活性与去除直接污渍、环境空气中分子降解或抗菌效果的相关性。 [外文原描述]： This document specifies a method for the determination of the photocatalytic activity of surfaces by means of degradation of methylene blue (MB) in an aqueous medium under artificial irradiation, and characterises photocatalytically active surfaces with respect to their activity for degradation of dissolved organic molecules under radiant exposure to ultraviolet light. This document does not apply for the characterization of surfaces with respect to their photocatalytic activity under visible light. A correlation of photocatalytic activity with the removal of direct soiling, the degradation of gaseous molecules in the environmental air or the antimicrobial efficacy can exist, especially for surfaces with low photonic efficiency.