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Kinetics and Thermodynamics of Adsorbing Ni2+ from Waste Water onto a New Type Treated Attapulgite

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Abstract:

A new method is proposed to treat attapulgite by freeze-dying and heating process. The photos of Scanning Electron Microscopy (SEM) on treated attapulgite show higher dispersion properties. TG and DSC curves of raw attapulgite and treated attapulgite indicated the contents of adsorption water, zeolite water and complexing water in the treated attapulgite are less than that of raw attapulgite. The test results of Nickel adsorption indicated the adsorption mechanism could be better described by pseudo-second order model and the thermodynamic curve of adsorption could be described with Langmuir model.

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Periodical:

Advanced Materials Research (Volumes 791-793)

Pages:

159-162

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.791-793.159

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Online since:

September 2013

Authors:

Ding Yun Jiang, Ying Ying Shi, Liang Dong Feng, A Qing Yuan

Keywords:

Adsorption, Attapulgite, Freeze-Dying, Heating Method, Ni2+ Ion

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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