{"id":5355,"date":"2026-08-03T15:28:25","date_gmt":"2026-08-03T06:28:25","guid":{"rendered":"https:\/\/agus.co.jp\/en\/?p=5355"},"modified":"2026-08-03T15:34:10","modified_gmt":"2026-08-03T06:34:10","slug":"what-is-a-photocatalyst-a-simple-explanation-of-the-two-types-and-four-familiar-examples-of-its-use","status":"publish","type":"post","link":"https:\/\/agus.co.jp\/en\/?p=5355","title":{"rendered":"What is a photocatalyst? A simple explanation of the two types and four familiar examples of its use."},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

Among catalysts, \u2018photocatalysis\u2019 has attracted particular attention recently.<\/p>\n\n\n\n

Many people have heard of them, as they are often featured in the news.<\/p>\n\n\n\n

However, it is also characterized by being difficult to explain and understand.<\/p>\n\n\n\n

So now, we are trying to explain this subject in an easy-to-understand way for high school students.<\/p>\n\n\n\n

The complex parts are explained using diagrams and videos, so if you are curious about what photocatalysis is and how it is used in society, please take a look.<\/p>\n\n\n\n

Let\u2019s have a look.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Photocatalyst is one of the catalysts that react with light (ultraviolet light).<\/h2>\n\n\n\n
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titanium dioxide molecule icon<\/figcaption><\/figure>\n\n\n\n

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<\/p>\n<\/div>\n\n\n\n

Photocatalysis generally refers to coatings with titanium dioxide as an ingredient.<\/p>\n\n\n\n

When exposed to light (ultraviolet light), a \u2018redox reaction\u2019 occurs on the surface, which has the effect of breaking down harmful substances and preventing staining.<\/p>\n\n\n\n

*Photocatalysis exists not only in man-made coatings, but also in nature, for example in plant photosynthesis.<\/p>\n\n\n\n

Photocatalysts possess the properties of \u201cgenerating strong oxidizing power\u201d and \u201csuperhydrophilicity,\u201d and can be utilized in six different ways.<\/p>\n\n\n\n

<\/div>\n\n\n\n

Six functions of photocatalysis<\/h2>\n\n\n\n
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Photocatalysis has six functions.<\/p>\n\n\n\n

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