电纺丝法制备偕胺肟化聚离子液体复合纳米纤维及其对铀的吸附性能和其抗微生物性能的研究

批准号:
21976074
项目类别:
面上项目
资助金额:
66.0 万元
负责人:
张红霞
依托单位:
学科分类:
放射化学与辐射化学
结题年份:
2023
批准年份:
2019
项目状态:
已结题
项目参与者:
张红霞
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中文摘要
随着核电的发展,全球对铀的需求量与日俱增,因此寻找新的铀资源已经是一个亟待解决的问题。含铀约4.5亿吨的海水对未来铀资源的供应具有重要的战略意义,所以寻找高效地从海水中提铀的材料和方法成为科研人员的挑战。海水中的铀浓度很低,同时海水中还存在着大量的共存元素和微生物。针对这些问题,本项目利用静电纺丝技术,采用微波辐射和自由基聚合方法制备含偕胺肟基聚离子液体纳米复合纤维并对其进行表征。其次用静态吸附法研究该纳米纤维对铀的吸附性能,同时考察吸附时间、吸附剂浓度、体系pH值、离子强度、共存离子及温度对该材料吸附铀的影响及其对铀的吸附选择性。通过吸附动力学和热力学模型计算及光谱分析手段,探讨该纤维材料对铀的吸附机理。最后研究该材料的抗菌能力及材料的重复使用性,期望该材料能高效从海水中提取铀。该项目的研究对于从海水、盐湖水提铀及碱性含铀废液的处理,具有重要的科学指导意义。
英文摘要
With the development of nuclear power, the global demand for uranium is increasing day by day. Therefore, finding new uranium resources is an urgent problem. Uranium containing about 4.5 billion tons of seawater has important strategic significance for the future supply of uranium resources, so finding effective methods and perfect materials to extract uranium from seawater is a challenge for researchers. The concentration of uranium in seawater is very low,meanwhile there are many coexisting elements and microorganisms. To solve these problems, nanofibers containing amidoxime and polymer ionic liquid are prepared using microwave radiation method and free radical polymerization by electrospinning technology. Secondly, the adsorption of uranium on the nanofibers is studied by static adsorption. Meanwhile, the influence of contact time, adsorbent concentration, pH value, ionic strength, temperature, anion and cation of coexisting on uranium adsorption and selectivity to uranium are also investigated. Through adsorption kinetics and thermodynamic model calculation and spectroscopic analysis, the adsorption mechanism of uranium on the nanofibers is discussed. Finally, anti-bacterial and anti-biofouling activity of nanofiber is studied. It is expected that the material has good affinity and selectivity to uranium and reusability. The research of this project will be great significance for extraction of uranium from seawater and Brine Lake and treatment alkaline wastewater containing uranium.
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DOI:10.1007/s10967-020-07142-4
发表时间:2020-04-18
期刊:JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
影响因子:1.6
作者:Wang, Xinglei;Guo, Hangxu;Zhang, Hongxia
通讯作者:Zhang, Hongxia
DOI:10.1007/s10967-023-08767-x
发表时间:2023-01
期刊:Journal of Radioanalytical and Nuclear Chemistry
影响因子:1.6
作者:Zhen Zhang;Yuedi Zhou;Jingbo Zhou;Zhichen Qiao;Hongxia Zhang
通讯作者:Zhen Zhang;Yuedi Zhou;Jingbo Zhou;Zhichen Qiao;Hongxia Zhang
DOI:10.1007/s10967-021-08083-2
发表时间:2021-11
期刊:Journal of Radioanalytical and Nuclear Chemistry
影响因子:1.6
作者:Xinglei Wang;Jingbo Zhou;Zhen Zhang;Jie Li;Hongxia Zhang
通讯作者:Xinglei Wang;Jingbo Zhou;Zhen Zhang;Jie Li;Hongxia Zhang
DOI:10.1007/s10967-019-06928-5
发表时间:2019-11
期刊:Journal of Radioanalytical and Nuclear Chemistry
影响因子:1.6
作者:Fan Wang;Xinglei Wang;Yunjie Jiang;Zhiwei Niu;Wang-suo Wu;Hongxia Zhang
通讯作者:Fan Wang;Xinglei Wang;Yunjie Jiang;Zhiwei Niu;Wang-suo Wu;Hongxia Zhang
DOI:10.1016/j.seppur.2023.124863
发表时间:2023-08-30
期刊:SEPARATION AND PURIFICATION TECHNOLOGY
影响因子:8.6
作者:Wang,Jianli;Wang,Xin;Hu,Peizhuo
通讯作者:Hu,Peizhuo
放射性核素在几种矿物组分上的吸附和微观结构的研究
- 批准号:21101083
- 项目类别:青年科学基金项目
- 资助金额:25.0万元
- 批准年份:2011
- 负责人:张红霞
- 依托单位:
国内基金
海外基金
