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Characterization of activated carbon produced from almond shell and hazelnut shell
Author(s) -
Balci Suna,
Doǧu Timur,
Yücel Hayrettin
Publication year - 1994
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280600413
Subject(s) - shell (structure) , activated carbon , characterization (materials science) , chemistry , chemical engineering , materials science , nanotechnology , organic chemistry , engineering , composite material , adsorption
Ammonium chloride‐impregnated and untreated almond shell and hazelnut shell samples were carbonized in a flow of nitrogen at relatively low temperatures. Pore structure characterization and sorption capacities of activated carbons prepared from shells of almond and hazelnut indicated that treatment with NH 4 Cl increased the total surface area and improved sorption characteristics. Chemical activation carried out at 350°C gave products with surface area values above 500 m 2 g −1 . On the other hand, the surface area values observed for the products obtained from untreated raw materials were about half of this value. The surface area of products obtained from NH 4 Cl‐impregnated samples reached values of over 700 m 2 g −1 when the carbonization temperature was increased 700°C.