Kinetics of adsorption of di-n-butyl phthalate (DBP) by four different granule-activated carbons

Po Keung Eric TSANG, Zhanqiang FANG, Hui LIU, Xiaolei CHEN

Research output: Contribution to journalArticles

6 Citations (Scopus)

Abstract

The kinetics of the adsorption of an endocrine disruptor, di-n-butyl phthalate (DBP), by four different granulated-activated carbons (GACs) is presented in this paper. Results showed that adsorption of DBP by the four GACs followed first-order kinetics and the adsorption constant of the four GAC was found to follow the order: nut shell>coconut shell>Coaly carbon 1.0>Coaly carbon 1.5. Batch adsorption studies were also conducted to investigate the effect of pH on the adsorption process. The optimum pH for the removal of DBP from aqueous solutions under the experimental conditions used in this work was found to be 5.0. The characterization of the carbon surfaces was conducted by using scanning electron microscopy (SEM). Furthermore, results from infrared spectroscopic (IR) studies showed that physical adsorption plays an important role in the adsorption of DBP by the four selected GACs. Copyright © 2008 Higher Education Press and Springer-Verlag.
Original languageEnglish
Pages (from-to)288-293
JournalFrontiers of Chemistry in China
Volume3
Issue number3
DOIs
Publication statusPublished - Sep 2008

Citation

Tsang, P. K., Fang, Z., Liu, H., & Chen, X. (2008). Kinetics of adsorption of di-n-butyl phthalate (DBP) by four different granule-activated carbons. Frontiers of Chemistry in China, 3(3), 288-293.

Keywords

  • Activated carbon
  • Adsorptive kinetics
  • Infrared spectroscopy
  • Pore size
  • Scanning electron microscopy (SEM)

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