Preferring cellulose of Eichhornia crassipes to prepare xanthogenate to other plant materials and its adsorption properties on copper

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• 作者：Liangfeng Tan ; Duanwei Zhu ; Wenbing Zhou ; Weijie Mi ; Lixiao Ma ; Wenting He
• 关键词：Eichhornia crassipes ; Cellulose xanthogenate ; Adsorption ; Copper
• 刊名：Bioresource Technology
• 出版年：2008
• 出版时间：July 2008
• 年：2008
• 卷：99
• 期：10
• 页码：4460-4466
• 全文大小：147 K

文摘

Choosing bio-material of Eichhornia crassipes from five plant materials through comparison on their exchangeable capacity to copper and carboxyl content, cellulose xanthogenate was prepared by raw fiber of E. crassipes with NaOH and CS₂. The exchange adsorption properties of the product on copper were investigated and the optimum preparing condition was obtained. The results showed that the adsorption capacity of cellulose xanthogenate of E. crassipes to copper was higher than that of other plant materials. Adsorption capacity to copper ion increased with pH value increasing, and was affected by different anions, but not by sodium ion. Adsorption rate was fast and the dynamics of adsorption could be described by a first order kinetic equation.