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HomeMaterials Science ForumMaterials Science Forum Vols. 743-744Study on the Adsorption Behavior of Acid Dyes on...

Study on the Adsorption Behavior of Acid Dyes on Collagen Fiber

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Abstract:

The adsorption of acid black dye NT on collagen fiber (CF) was studied, and the effects of temperature, pH, initial dye concentration, adsorbent dosage and reaction time on the dye adsorption were tested, respectively. The results indicated that the optimal temperature and pH of acid black dye NT absorption were 40°C and 2.0, respectively. For a certain concentration of dyeing, the adsorption capacity decreased with the increasing of adsorbent dosage, but increased along with the extension of the contact time. In addition, the adsorption isotherms and kinetics of acid black dye NT on CF were investigated. By comparison, it was found that the Freundlich equation and Pseudosecond-order kinetic model can better describe the adsorption behavior of acidic black dye on CF. Thermodynamic parameters, such as G, H and S were determined to be-3.445 kJ/mol, 11.2 kJ/mol and 59.6 J/(mol·K), respectively. The results indicated that the adsorption was a spontaneous endothermic nature.

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Periodical:

Materials Science Forum (Volumes 743-744)

Pages:

759-767

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.743-744.759

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Online since:

January 2013

Authors:

Xue Chuan Wang, Qiao Qiao Bu, Tao Tao Qiang, Min Luo

Keywords:

Adsorption Behavior, Collagen Fiber (CF), Isotherm, Kinetic

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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