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Purification Knowledge: Can Activated Carbon For Clean Water Be Used In Air Purifiers?
Oct 11, 2018

Activated carbon is a kind of microcrystalline carbon material made of carbon-containing material with black appearance, developed internal pore structure, large specific surface area and strong adsorption  capacity. It is a commonly used adsorbent, catalyst or catalyst carrier. Activated carbon for different uses is used to adsorb different types of pollutants.


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For example, activated carbon for clean water can not be used to purify toxic and harmful gases in indoor air. In other words, activated carbon for clean water cannot be used in air purifiers. The diameter of the activated carbon micropores used for purifying air must be slightly larger than the molecular diameter of toxic and harmful gases to have the ability to adsorb toxic and harmful gases.


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The activated carbon used for water purification is mainly used to adsorb impurities and toxic and harmful substances in water. These impurities and toxic and harmful substances are mostly left in water in the form of solid or liquid. Their particles or molecules are smaller in diameter  than gas molecules. The diameter is hundreds or even thousands of times larger.

The micropores of activated carbon for water purification are designed to adsorb these contaminants in water. Therefore,  since activated carbon for purifying water and activated carbon for purifying air have many differences in internal microporous structure and structure, activated carbon for purified water cannot be used to purify toxic and harmful gases in indoor air.


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