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A Novel Chelating Resin, Polystyrene-Supported Glucosamine: Preparation and Adsorption Properties for Ag(Ⅰ)

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Abstract:

A novel chelating resin, crosslinking polystyrene-supported glucosamine (PS-GA), was prepared and its static adsorption properties for Ag(Ⅰ) were studied. The results indicated that this resin had excellent adsorption capacity for Ag(Ⅰ). The adsorption dynamics indicated that adsorption was controlled by the liquid film diffusion and the apparent activation energy Ea was 11.83 kJ/mol. Both Langmuir model and Freundlich model could describe the adsorption isothermal process of Ag(Ⅰ), and ∆G, ∆H, ∆S values were calculated. Increasing the temperature was beneficial to adsorption. The chelating resin can be easily regenerated by 2% thiourea in 0.1 mol/L HNO3 with higher effectiveness. Five adsorption–desorption cycles demonstrated that this resin was suitable for repeated use without considerable change in adsorption capacity.

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Periodical:

Advanced Materials Research (Volumes 197-198)

Pages:

478-482

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.197-198.478

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Online since:

February 2011

Authors:

Hai Lan Huang, Guo Ming Wang, Rong Jun Qu, Xu Bo

Keywords:

Adsorption Property, AG (I), Polystyrene-Supported Glucosamine (PS-GA)

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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