Semiconductor photocatalysis, usually referred to simply as “photocatalysis” is a relatively new and yet still a growing subject area, which has led to a billion-dollar industry, mostly focused on the production of self-cleaning architectural materials, such as glass, paint, tiles, fabric, plastic and concrete. All such materials need to be tested for activity, but for self-cleaning activity there are few appropriate tests; the International Standards Organization, ISO, for example, have at present only two, both of which are slow and largely ineffective for most commercial self-cleaning products. The photocatalyst community in general, and the manufacturers of self-cleaning photocatalytic products in particular, need a fast, simple, easy to use method of assessing photocatalytic activity, which can also be used to demonstrate the efficacy of self-cleaning materials in minutes, i.e., a quantitative and qualitative test.

中文翻译：

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用于评估自清洁薄膜的光催化剂活性指示剂油墨，paiis

半导体光催化，通常简称为“光催化”，是一个相对较新但仍在不断发展的学科领域，已催生了价值数十亿美元的产业，主要集中在生产自清洁建筑材料，如玻璃、油漆、 瓷砖、 织物、 塑料和混凝土。所有这些材料都需要进行活性测试，但对于自洁活性，几乎没有合适的测试；例如，国际标准组织 ISO 目前只有两个，对于大多数商业自清洁产品来说，这两个都很慢并且基本上无效。光触媒界，尤其是自清洁光触媒产品的制造商，需要一种快速、简单、易于使用的光触媒活性评估方法，即，定量和定性测试。