ACTIVATED CARBONS OBTAINED BY CHEMICAL ACTIVATION OF SPENT COFFEE BREW (BIOMASS)
Vesislava B. Toteva, Penka G. Tzvetkova, Alma B. Tateeva, Radostin N. Nickolov
Pages: 464-472
Published: 1 Jan 2013
Views: 441
Downloads: 33
Abstract: The study reports on the preparationofactivated carbons based on biomass (spent coffee brew) and on the characterization of their porous texture. The developed laboratory technology appropriate for the purpose included (1) extraction of coffee grounds biomass to remove coffee oil residue; (2) carbonization of extracted biomass – individual or in mixture with 10, 20 and 30 mass % Bulgarian lignite coal and (3) chemical activation by potassium hydroxide. The results obtained show the activated carbons prepared by the activation procedure used to have 2 í1 very high specific surface area (from 1600 to 2200 m g ), with high microporous volume (0.600 – 3 -1 0.800 cm g ) and with homogeneous mesoporous size distibution (max. ~ 2 nm).
Keywords: spent coffee brew, activated carbon, extraction, chemical activation
Cite this article: Vesislava B. Toteva, Penka G. Tzvetkova, Alma B. Tateeva, Radostin N. Nickolov. ACTIVATED CARBONS OBTAINED BY CHEMICAL ACTIVATION OF SPENT COFFEE BREW (BIOMASS). Journal of International Scientific Publications: Materials, Methods & Technologies 7, 464-472 (2013). https://www.scientific-publications.net/en/article/1003076/
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