Activated Carbon

Activated carbon, also called activated charcoal, activated coal, or carbo activatus, is a form of carbon processed to be riddled with small, low-volume pores that increase the surface area available for adsorption or chemical reactions. Activated is sometimes substituted with active.

Due to its high degree of microporosity, just one gram of activated carbon has a surface area in excess of 500 m2, as determined by adsorption isotherms of carbon dioxide gas at room or 0.0 °C temperature. An activation level sufficient for useful application may be attained solely from high surface area; however, further chemical treatment often enhances adsorption properties.

Activated carbon is usually derived from charcoal.

Read more about Activated CarbonProduction, Classification, Properties, Applications, Reactivation and Regeneration

Other articles related to "activated carbon, carbon":

Activated Carbon - Reactivation and Regeneration - Other Regeneration Techniques
... Current concerns with the high energy/cost nature of thermal regeneration of activated carbon has encouraged research into alternative regeneration methods ...
Point-of-use Water Treatment - Techniques - Activated Charcoal Adsorption
... Granular activated carbon filtering utilizes a form of activated carbon with a high surface area, and adsorbs many compounds, including many toxic compounds ... Water passing through activated carbon is commonly used in concert with hand pumped filters to address organic contamination, taste, or objectionable ... Activated carbon filters aren't usually used as the primary purification techniques of portable water purification devices, but rather as secondary means ...
Carbon Dioxide Scrubber - Technologies - Activated Carbon
... Activated carbon can be used as a carbon dioxide scrubber ... Air with high carbon dioxide content, such as air from fruit storage locations, can be blown through beds of activated carbon and the carbon dioxide will adsorb onto the activated carbon ... is saturated it must then be "regenerated" by blowing low carbon dioxide air, such as ambient air, through the bed ...
Environmental Remediation - Remediation Technologies - Soil Vapor Extraction
... of air and vapors (and VOCs) from the subsurface and include granular activated carbon (most commonly used historically), thermal and/or catalytic oxidation and ... Generally, carbon is used for low (4,000 ppmV) VOC concentration vapor streams ... Granular activated carbon (GAC) is used as a filter for air or water ...
Air Purifier - Purifying Techniques
... Activated carbon is a porous material that can adsorb volatile chemicals on a molecular basis, but does not remove larger particles ... The adsorption process when using activated carbon must reach equilibrium thus it may be difficult to completely remove contaminants ... Activated carbon is merely a process of changing contaminants from a gaseous phase to a solid phase, when aggravated or disturbed contaminants can be regenerated in indoor air sources ...