activated carbon


Definition of activated carbon

: a highly adsorbent powdered or granular carbon made usually by carbonization and chemical activation and used chiefly for purifying by adsorption

called also activated charcoal

Examples of activated carbon in a Sentence

Recent Examples on the Web These Kinglight activated carbon filters are made from cotton and non-woven material. NBC News, "Face masks: The most purchased masks we've recently covered," 15 Aug. 2020 The Blueair Blue Pure 211+ air purifier ($299 at Best Buy and Home Depot) has activated carbon pellets incorporated into the pleated filter, says Consumer Reports. oregonlive, "Everyone suddenly wants an air purifier. What to know before you buy," 15 Sep. 2020 In auto mode, Dyson purifiers will automatically sense any pollutants in the room and will adjust accordingly to capture the pollutants in the HEPA and activated carbon filter system. Sunset Magazine, "How Do We Breathe During the West Coast Fires? We Asked Dyson’s Air-Quality Expert for Advice," 10 Sep. 2020 Many filters also include activated carbon in their elements to remove unpleasant tastes. The Editors, Field & Stream, "Three Items You Need to Keep in Your Backpack," 27 Apr. 2020 Many filters also include activated carbon in the elements to remove unpleasant tastes. The Editors, Field & Stream, "Three Ways to Purify Drinking Water," 5 Mar. 2020 Lead scientist Ahmed Osman says the U.K. typically pays to import materials to make both activated carbon and carbon nanotubes from overseas. Caroline Delbert, Popular Mechanics, "Scientist Turns Beer Byproducts Into Carbon Nanotubes," 26 Nov. 2019 The city’s Water Treatment Department is adding activated carbon to abate the taste and odor, but the odor can be detected at levels as small around 8 parts per trillion, according to the city. John Spina, The Denver Post, "Algae growth from late-summer high temperatures causing odor in Lafayette water," 6 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'activated carbon.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of activated carbon

1921, in the meaning defined above

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Time Traveler for activated carbon

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The first known use of activated carbon was in 1921

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Cite this Entry

“Activated carbon.” Dictionary, Merriam-Webster, Accessed 17 Jan. 2021.

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