Journal
DESALINATION
Volume 250, Issue 1, Pages 179-187Publisher
ELSEVIER
DOI: 10.1016/j.desal.2008.12.056
Keywords
Activated carbon; Activation; BET surface area; Lignin
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Activated lignin with a relative high BET surface area and a well-developed porosity has been prepared from Tunisian deposit lignin, by H3PO4 activation at various process conditions. Physical and chemical properties of activated carbons produced, implying BET surface area, Boehm titration, Fourier Transform Infrared Spectroscopy (FTIR) and thermogravimetric analysis (TGA), were investigated. It was found that the maximum surface area reached at the carbonization temperature of 500 degrees C in H3PO4 activation, and that the activated lignin prepared from lignin acidic activation, showed a surface area of 463 m(2)/g. The potential application of these carbons for the removal of heavy metal contaminant, has been investigated by measuring their adsorption capacities for Cu (II) as representative of main local toxic contaminant found in industrial wastewaters. The results obtained compare well and even favourably with those reported in literature for other unconventional materials. (C) 2009 Published by Elsevier B.V.
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