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首页> 外文期刊>Journal of Applied Polymer Science >Adsorption of humic acid onto chitin and chitosan
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Adsorption of humic acid onto chitin and chitosan

机译：腐殖酸在甲壳素和壳聚糖上的吸附

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摘要

The adsorption of humic acid onto chitin and chitosan has been investigated. The uptake of humic acid from aqueous solution was determined from changes in concentration, as measured by ultraviolet-visible spectroscopy. The decrease in humic acid removal was observed with the increase in pH. A significant uptake of humic acid on both chitin and chitosan was observed. The uptake of humic acid on chitosan was greater than that on chitin. Adsorption isothermal data could be interpreted by the Langmuir and Freundlich equation. Langmuir and Freundlich constants have been determined. The experimental data of the adsorption equilibrium from humic acid solutions correlate well with the Langmuir isotherm equation, as compared to the Freundlich isotherm equation. (C) 1998 John Wiley & Sons, Inc. [References: 19]
机译：研究了腐殖酸在几丁质和壳聚糖上的吸附。腐殖酸从水溶液中的摄取是由浓度变化确定的，如通过紫外可见光谱法所测量的。随着pH值的增加，腐殖酸去除率下降。观察到几丁质和壳聚糖均吸收大量腐殖酸。壳聚糖对腐殖酸的吸收大于几丁质。吸附等温数据可以用Langmuir和Freundlich方程解释。已确定Langmuir和Freundlich常数。与Freundlich等温线方程相比，来自腐殖酸溶液的吸附平衡实验数据与Langmuir等温线方程密切相关。 （C）1998 John Wiley＆Sons，Inc. [参考：19]

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