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Adsorption of azo dyes from aqueous solution by the hybrid MOFs/GO
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Li, L., Shi, Z., Zhu, H., Hong, W., Xie, Fengwei and Sun, K. (2016) Adsorption of azo dyes from aqueous solution by the hybrid MOFs/GO. Water Science and Technology, 73 (7). pp. 1728-1737. doi:10.2166/wst.2016.009 ISSN 0273-1223.
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Official URL: http://dx.doi.org/10.2166/wst.2016.009
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.
Item Type: | Journal Article | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||
Journal or Publication Title: | Water Science and Technology | ||||||
Publisher: | I W A Publishing | ||||||
ISSN: | 0273-1223 | ||||||
Official Date: | 6 January 2016 | ||||||
Dates: |
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Volume: | 73 | ||||||
Number: | 7 | ||||||
Page Range: | pp. 1728-1737 | ||||||
DOI: | 10.2166/wst.2016.009 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access |
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