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Progress on fabrication and application of activated carbon sphere in recent decade
Jingming Lan,Baoying Wang,Chunmiao Bo,Bolin Gong,Junjie Ou 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.120 No.-
Activated carbon (AC) has a long history as an adsorbent material in many applications, including heavymetal and toxic gas removal as well as air and water filter applications. Activated carbon sphere (ACS) is aspecial type of activated carbon that has a high compressive strength and low ash content. Coal, asphalt,resins, polymers, lignin, carbohydrates, etc. can be utilized as precursors to prepare ACS using simple carbonizationand activation processes. Various parameters such as carbonization temperature, rising rate oftemperature, activation time, activation temperature, activator, different activation methods, etc. havesignificant effects on the performance and quality of the final product. As the size of ACS decreases, differentpreparation methods were adopted to prepare nano-sized or micron-sized spherical activated carbon. However, regardless of the size and shape of spherical activated carbon, it has a wide range of rolesfor the removal of heavy metals, organic dyes, carbon dioxide, volatile organic chemicals, catalyst carriers,gas and energy storage, chemical protection materials, and blood purification. This article mainlyreviews preparation methods of ACS over the last decade, and its applications and the challenges facedby ACS are discussed.
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