Adsorption of azo dyes from aqueous solution by the hybrid MOFs/GO

Li, Ling, Shi, Zhennan, Zhu, Hongyang, Hong, Wei, Xie, Fengwei and Sun, Keke (2016) Adsorption of azo dyes from aqueous solution by the hybrid MOFs/GO. Water Science and Technology, 73 7: 1728-1737. doi:10.2166/wst.2016.009

Author Li, Ling
Shi, Zhennan
Zhu, Hongyang
Hong, Wei
Xie, Fengwei
Sun, Keke
Title Adsorption of azo dyes from aqueous solution by the hybrid MOFs/GO
Journal name Water Science and Technology   Check publisher's open access policy
ISSN 0273-1223
Publication date 2016-04-01
Year available 2016
Sub-type Article (original research)
DOI 10.2166/wst.2016.009
Open Access Status Not Open Access
Volume 73
Issue 7
Start page 1728
End page 1737
Total pages 10
Place of publication London, United Kingdom
Publisher I W A Publishing
Collection year 2017
Language eng
Formatted abstract
In this work, a hybrid of chromium(III) terephthalate metal organic framework (MIL-101) and graphene oxide (GO) was synthesized and its performance in the removal of azo dyes (Amaranth, Sunset Yellow, and Carmine) from water was evaluated. The adsorption for azo dyes on MIL-101/GO was compared with that of MIL-101, and it was found that the addition of GO enhanced the stability of MIL-101 in water and increased the adsorption capacity. The maximum adsorption capacities of MIL-101/GO were 111.01 mg g-1 for Amaranth, 81.28 mg g-1 for Sunset Yellow, and 77.61 mg g-1 for Carmine. The adsorption isotherms and kinetics were investigated, showing that the adsorption fits the Freundlich isotherm and the pseudo-second-order kinetic model. The recyclability of MIL-101/GO was shown by the regeneration by acetone. The high adsorption capability and excellent reusability make MIL-101/GO a competent adsorbent for the removal dyes from aqueous solution.
Keyword Azo dyes
Dye removal
Recyclable adsorbent
Wastewater treatment
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

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