Efficient adsorption of U(VI) using in low-level radioactive wastewater containing organic matter by amino groups modified polyacrylonitrile fibers
Efficient adsorption of U(VI) using in low-level radioactive wastewater containing organic matter by amino groups modified polyacrylonitrile fibers
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氨基改性聚丙烯腈纤维高效吸附含有机物的低放射性废水中的U(VI)
DOI：
10.1007/s10967-021-08146-4
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发表时间：
2022
影响因子：
1.6
通讯作者：
Yujing Zhang
中科院分区：
文献类型：
--
作者：
Xue Xia;Faqin Dong;Xiaoqin Nie;Ning Pan;Chang Liu;Congcong Ding;Junling Wang;Wencai Cheng;Huichao He;Shiyong Sun;Yujing Zhang
制备了一种氨基改性聚丙烯腈纤维（PAN-A），用于从含有机低放射性废水（OC-LLRW）中提取铀。SEM/EDS和FTIR表征表明，氨基成功接枝在聚丙烯腈纤维（PAN）表面。其吸附量为492.1 mg g−1 (pH 6.0)，在0.1 mol L−1 HCl溶液条件下可进行至少5次吸附/解吸循环。PAN-A对含有机废水（尿素、四氢呋喃醇）有较好的抑制作用，对聚乙烯醇（PVA）有明显的抑制作用。这种现象主要与聚乙烯醇的黏性有关。图形抽象
A kind of amino groups modified polyacrylonitrile fibers (PAN-A) was prepared to extract uranium from organic-containing low-level radioactive wastewater (OC-LLRW). SEM/EDS and FTIR characterization conformed that amino group was triumphant grafed on polyacrylonitrile fibers (PAN) surface. Its adsorption capacity was 492.1 mg g −1 (pH 6.0) and can endure at least five adsorption/desorption cycles under condition of 0.1 mol L −1 HCl solution. This PAN-A can work efficiently in the organic containing waste water (urea, tetrahydrofurfuryl alcohol), while the polyvinylalcohol (PVA) exhibited an apparently suppressive effect. This phenomenon was mainly with respect to the sticky nature of PVA. Graphical abstract