Modeling synergistic adsorption of phenol/aniline mixtures in the aqueous phase onto porous polymer adsorbents

Zhang, W. M., Zhang, Q. J., Pan, B. C., Lv, L., Pan, B. J., Xu, Z. W., Zhang, Q. X., Zhao, X. S., Du, W. and Zhang, Q. R. (2007) Modeling synergistic adsorption of phenol/aniline mixtures in the aqueous phase onto porous polymer adsorbents. Journal of Colloid and Interface Science, 306 2: 216-221. doi:10.1016/j.jcis.2006.10.056


Author Zhang, W. M.
Zhang, Q. J.
Pan, B. C.
Lv, L.
Pan, B. J.
Xu, Z. W.
Zhang, Q. X.
Zhao, X. S.
Du, W.
Zhang, Q. R.
Title Modeling synergistic adsorption of phenol/aniline mixtures in the aqueous phase onto porous polymer adsorbents
Journal name Journal of Colloid and Interface Science   Check publisher's open access policy
ISSN 0021-9797
1095-7103
Publication date 2007-02
Sub-type Article (original research)
DOI 10.1016/j.jcis.2006.10.056
Volume 306
Issue 2
Start page 216
End page 221
Total pages 6
Place of publication Maryland Heights, MO, United States
Publisher Academic Press
Language eng
Formatted abstract
The adsorption equilibria of phenol and aniline on nonpolar polymer adsorbents (NDA-100, XAD-4, NDA-16 and NDA-1800) were investigated in single- and binary-solute adsorption systems at 313 K. The results showed that all the adsorption isotherms of phenol and aniline on these adsorbents can be well fitted by Freundlich and Langmuir equations, and the experimental uptake of phenol and aniline in all binary-component systems is obviously higher than predicted by the extended Langmuir model, arising presumably from the synergistic effect caused by the laterally acid-base interaction between the adsorbed phenol and aniline molecules. A new model (MELM) was developed to quantitatively describe the synergistic adsorption behavior of phenol/aniline equimolar mixtures in the binary-solute systems and showed a marked improvement in correlating the binary-solute adsorption of phenol and aniline by comparison with the widely used extended Langmuir model. The newly developed model confirms that the synergistic coefficient of one adsorbate is linearly correlated with the adsorbed amount of the other, and the larger average pore size of adsorbent results in the greater synergistic effect of phenol/aniline equimolar mixtures adsorption. © 2006 Elsevier Inc. All rights reserved.
Keyword New model
Synergistic adsorption
Phenol
Aniline
Isotherm
Porous polymer adsorbent
Anion-Exchange Resins
Competitive Adsorption
Activated Carbon
Cooperative Adsorption
Aromatic-Compounds
Isotherm Models
Water
Sorption
Phenol
Aniline
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
ERA 2012 Admin Only
 
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