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Issue 2, 2014
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High adsorption capacity for dye removal by CuZn hydroxyl double salts

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Abstract

CuZn hydroxyl double salts (CuZn–HDS) were prepared using the same synthesis method of LHZS by adding a copper source. When tested as adsorbents for methyl orange (MO) removal, CuZn–HDS exhibited better performance than layered hydroxyl zinc salt (LHZS). CuZn-1 had a surface area of 33.8 m2 g−1 and displayed a maximum adsorption capacity of 847 mg g−1 for MO, which made it a potentially attractive adsorbent in water purification. The adsorption process followed a pseudo-second-order kinetic model, and the adsorption isotherm has been satisfactorily fitted using the Langmuir model. The adsorption mechanism for MO on CuZn-1 was also investigated.

Graphical abstract: High adsorption capacity for dye removal by CuZn hydroxyl double salts

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Supplementary files

Article information


Submitted
07 Nov 2013
Accepted
10 Jan 2014
First published
27 Feb 2014

Environ. Sci.: Nano, 2014,1, 172-180
Article type
Paper
Author version available

High adsorption capacity for dye removal by CuZn hydroxyl double salts

S. Zhu, S. Jiao, Z. Liu, G. Pang and S. Feng, Environ. Sci.: Nano, 2014, 1, 172
DOI: 10.1039/C3EN00078H

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