Production of activated carbon by H3PO4 activation treatment of corncob and its performance in removing nitrobenzene from water

Yong Sun, Jin Ping Zhang, Gang Yang, Zuo Hu Li

Research output: Journal PublicationArticlepeer-review

23 Citations (Scopus)

Abstract

Activated carbon was produced by fast precarbonization of corncobs in a fluidized bed followed by H3PO4 activation. The results showed that the product is essentially microporous carbon whose BET surface area and pore volume when the carbon was activated at 900°C were 1588 m 2/g and 0.8163 mL/g, respectively. The experimental operating conditions were as follows: carbonizing the corncobs in the preheated fluidized-bed at 350°C for 5 min using N2 as carrier gas; impregnating the char with H3PO4 with an impregnation ratio of 1:5 (Char/H3PO4); and activating the mixture at 900°C for 30 min in the tubular furnace. The potential usefulness of the resultant carbons for removal of nitrobenzene from water was also investigated.

Original languageEnglish
Pages (from-to)78-85
Number of pages8
JournalEnvironmental Progress
Volume26
Issue number1
DOIs
Publication statusPublished - Apr 2007
Externally publishedYes

Keywords

  • Activated carbon
  • Corncobs
  • Fluidized-bed
  • Nitrobenzene
  • Precarbonization

ASJC Scopus subject areas

  • Environmental Science (all)

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