An investigation on the adsorption of acid dyes on bentonite based composite adsorbent.

Qiao, S.Z., Hu, Q., Haghseresht, F., Hu, X. and Lu, G.Q. (2009) An investigation on the adsorption of acid dyes on bentonite based composite adsorbent.. Separation and Purification Technology, 67 2: 218-225. doi:10.1016/j.seppur.2009.03.012


Author Qiao, S.Z.
Hu, Q.
Haghseresht, F.
Hu, X.
Lu, G.Q.
Title An investigation on the adsorption of acid dyes on bentonite based composite adsorbent.
Journal name Separation and Purification Technology   Check publisher's open access policy
ISSN 1383-5866
Publication date 2009-06-02
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.seppur.2009.03.012
Open Access Status Not Open Access
Volume 67
Issue 2
Start page 218
End page 225
Total pages 8
Editor G Chen, A de Haan, C.Tien, B Van der Bruggen
Place of publication United Kingdom
Publisher Pergamon
Language eng
Subject C1
090403 Chemical Engineering Design
100708 Nanomaterials
960912 Urban and Industrial Water Management
Formatted abstract
We report the adsorption study of two commercial dyes, Acid Red 18 (AR18) and Acid Yellow 23 (AY23), onto bentonite based composite adsorbent from aqueous solution. The modified bentonite adsorbent was developed with the expectation to better adsorb anionic dyes. Single dye adsorption equilibrium was measured and the experimental data was analysed by the Langmuir, Freundlich and Redlich-Peterson isotherms. The results indicate that the Redlich-Peterson model provides the best correlation of the experimental data. The adsorption capacities estimated from the Langmuir model for AR18 and AY23 were at 69.8 and 75.4 mg/g, respectively. Binary dye adsorption was also investigated. The results reveal that the multicomponent nature of the dye wastewater introduces additional complications to the adsorption process. Many new factors need to be taken into account, including the interactions between the adsorbate molecules, the variation in adsorption affinity, and the fraction of adsorption sites being shared by each adsorbate. © 2009 Elsevier B.V. All rights reserved.
Keyword clay
adsorption
dye
remediation
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Mon, 29 Mar 2010, 21:48:20 EST by Sharon Paterson on behalf of Aust Institute for Bioengineering & Nanotechnology