光谱学与光谱分析 |
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Adsorption Behaviors of Chitosan and the Analysis of FTIR Spectra |
HUANG Zhong-hua, SUN Xiu-yun, LI Yan, GE Wei, WANG Jun-de* |
College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210014, China |
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Abstract This paper studied the adsorption behavior of lab-made chitosan for acid dyeing waste water and basic dyeing waste waters, based on the effects of adsorbing time, deacetylation degree of chitosan, and pH of waste water. The results showed that the adsorption of basic fuchsin and saffron by the chitosan almost reached equilibrium state in 20 min. The adsorption capacities of the chitosan for dyes was comparable with activated carbon. Moreover,its dosages were only 2/3 of the latter. The adsorption process for Acid Red presented a dynamics character of first order reaction. FTIR spectroscopy was used to analyze the adsorption mechanisms of chitosan for different kinds of dyes. It was found that a great deal of hydroxide radicals in the chitosan molecule participated in the adsorption of basic fuchsin and saffron.
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Received: 2003-09-06
Accepted: 2004-01-19
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Corresponding Authors:
WANG Jun-de
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Cite this article: |
HUANG Zhong-hua,SUN Xiu-yun,LI Yan, et al. Adsorption Behaviors of Chitosan and the Analysis of FTIR Spectra[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(05): 698-700.
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URL: |
https://www.gpxygpfx.com/EN/Y2005/V25/I05/698 |
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