Record number :
Title of article :
Porous texture of activated carbons prepared by phosphoric acid activation of woods
Author/Authors :
M.A. D?´az-D?´eza، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
From page :
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Abstract :
Activated carbons (ACs) have been prepared using chestnut, cedar and walnut wood shavings from furniture industries located in the Comunidad Auto´noma de Extremadura (SW Spain). Phosphoric acid (H3PO4) at different concentrations (i.e. 36 and 85 wt.%) has been used as activating agent. ACs have been characterized from the results obtained by N2 adsorption at 77 K. Moreover, the fractal dimension (D) has been calculated in order to determine the AC surface roughness degree. Optimal textural properties of ACs have been obtained by chemical activation with H3PO4 36 wt.%. This is corroborated by the slightly lower values of D for samples treated with H3PO4 85 wt.%.
Keywords :
Porous texture , Chemical activation , fractal dimension
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
Link To Document :