Paper Title:
Adsorption Behavior of Barley Straw Carbon for Chromium (VI) Ion
  Abstract

Porous carbon having surface area of 792 m2g-1 was prepared from barley straw by carbonization at 800 oC at a heating rate of 5 oCmin-1 to test the chromium (VI) adsorption from aqueous solution. The effects of pH, contact time and equilibrium Cr (VI) concentration on the adsorption were studied in detail. The optimum pH for Cr (VI) removal was found to be 2. The adsorption of Cr (VI) was very rapid and equilibrium was reached within 1 h. It was interpreted in terms of adsorption-coupled reduction mechanism. Accompanied by the decrease of Cr (VI) ion, Cr (III) ion was slightly released in the solution. Maximum loading capacity of total chromium was found to be 2.35 molkg-1 at pH 2.

  Info
Periodical
Edited by
Byungsei Jun, Hyungsun Kim, Chanwon Lee, Soo Wohn Lee
Pages
213-216
DOI
10.4028/www.scientific.net/MSF.569.213
Citation
R. Chand, T. Watari, T. Torikai, M. Yada, K. Inoue , "Adsorption Behavior of Barley Straw Carbon for Chromium (VI) Ion", Materials Science Forum, Vol. 569, pp. 213-216, 2008
Online since
January 2008
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$32.00
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