The adsorption of U(VI) on carbonaceous nanofibers: A combined batch, EXAFS and modeling techniques

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• 作者：Baowei Hu^a ; ^{hubw1968@163.com} ; Qingyuan Hu^b ; Di Xu^c ; Chengguang Chen^b
• 关键词：CNFs ; Radionuclide ; Adsorption mechanism ; EXAFS ; Surface complexation modeling
• 刊名：Separation and Purification Technology
• 出版年：2017
• 出版时间：24 March 2017
• 年：2017
• 卷：175
• 期：Complete
• 页码：140-146
• 全文大小：803 K
• 卷排序：175

文摘

Maximum adsorption capacity of CNFs for U(VI) at pH 4.5 and 293 K was 52.63 mg/g. U(VI) sorption on CNFs at pH 4.0 was outer-sphere complexation by EXAFS analysis. Inner-sphere complexation/ co-precipitate dominated U(VI) adsorption at pH 7.0. U(VI) sorption can be satisfactorily fitted by surface complexation modeling.