Alkali-treated cellulose fibers for U(VI) separation and enrichment
Alkali-treated cellulose fibers for U(VI) separation and enrichment
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DOI：
10.1007/s10967-015-4527-1
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发表时间：
2016-06
影响因子：
1.6
通讯作者：
Kairuo Zhu;Changlun Chen;Jie Li;Rui Zhang
中科院分区：
文献类型：
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作者：
Kairuo Zhu;Changlun Chen;Jie Li;Rui Zhang
本文研究了一种经济有效的纤维素纤维吸附剂，用于核废水中铀（ⅵ）的脱除。以碱性过氧化物机械纸浆板为原料，采用CH3COOH和NaOH处理，提取碱处理的纤维素纤维。通过批量实验确定了吸附性能。atcf对U（VI）的吸附动力学可以用拟二阶速率方程很好地描述。结果表明，atcf对U（VI）的吸附与pH有较强的关系，与离子强度有较弱的关系。atcf对U（VI）的吸附主要以外球络合为主。
The present research work presents the study of cost effective cellulose fibers as sorbent for the U(VI) removal from nuclear wastewaters. Alkali-treated cellulose fibers (ATCFs) were extracted from alkaline peroxide mechanical pulp board by using CH3COOH and NaOH treatment. Sorption capability was ascertained by conducting batch experiments. The kinetic sorption of U(VI) on ATCFs could be described by the pseudo-second-order rate equation well. The results demonstrated that the sorption of U(VI) to ATCFs was strongly dependent of pH and weakly dependent of ionic strength. U(VI) sorption on ATCFs was mainly dominated by the outer-sphere complexation.