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Activated carbons from almond shells—I: Preparation and characterization by nitrogen adsorption

✍ Scribed by F. Rodriguez-Reinoso; J. de D. Lopez-Gonzalez; C. Berenguer

Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
499 KB
Volume
20
Category
Article
ISSN
0008-6223

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✦ Synopsis

Several series of activated carbons have been prepared from almond shells by mean of carbonization in a flow of nitrogen followed by activation in a flow of carbon dioxide. The carbonized material is essentially microporous with pore dimensions close to those of the nitrogen molecule as deduced from the comparison of nitrogen adsorption isotherms at 77 and 90K. Activation with carbon dioxide leads to the appearance of micropores and to a considerable increase in surface area. The effects of preparation conditions on the adsorptive capacity of the carbons are also discussed.

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