Kazuki Minowa , Sou Watanabe , Masahiko Nakase , Youko Takahatake , Yasunori Miyazaki , Yasutoshi Ban , Haruaki Matsuura
{"title":"Using X-ray absorption near edge structure to evaluate adsorption properties of rare earths and nitrogen by difference of their interactions","authors":"Kazuki Minowa , Sou Watanabe , Masahiko Nakase , Youko Takahatake , Yasunori Miyazaki , Yasutoshi Ban , Haruaki Matsuura","doi":"10.1016/j.nimb.2024.165496","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, X-ray absorption near edge structure (XANES) spectral analysis and column experiments were used to verify the selectivity of rare earth (RE) ions by alkyl diamide amine (ADAAM) adsorbent. In addition, the interactions between the N atoms of ADAAM and RE ions were evaluated to determine whether any of the RE ions are a valid simulant for developing a mutual separation process for minor actinides (MAs) in highly radioactive liquid waste. It was confirmed that La and Ce interacted with the amine N atom of ADAAM and they showed a peak shift of the N-K edge XANES spectrum; this finding suggested that a soft interaction is an essential factor influencing ion selectivity. Therefore, the selection factor of RE ions by ADAAM adsorbent was similar to that of MAs. It was concluded that RE ions are reasonable species to simulate MAs.</p></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"556 ","pages":"Article 165496"},"PeriodicalIF":1.4000,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0168583X24002660/pdfft?md5=8654c2cc488e7065ce759b504c75b2e4&pid=1-s2.0-S0168583X24002660-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0168583X24002660","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, X-ray absorption near edge structure (XANES) spectral analysis and column experiments were used to verify the selectivity of rare earth (RE) ions by alkyl diamide amine (ADAAM) adsorbent. In addition, the interactions between the N atoms of ADAAM and RE ions were evaluated to determine whether any of the RE ions are a valid simulant for developing a mutual separation process for minor actinides (MAs) in highly radioactive liquid waste. It was confirmed that La and Ce interacted with the amine N atom of ADAAM and they showed a peak shift of the N-K edge XANES spectrum; this finding suggested that a soft interaction is an essential factor influencing ion selectivity. Therefore, the selection factor of RE ions by ADAAM adsorbent was similar to that of MAs. It was concluded that RE ions are reasonable species to simulate MAs.
本研究利用 X 射线吸收近缘结构(XANES)光谱分析和柱实验验证了烷基二酰胺(ADAAM)吸附剂对稀土(RE)离子的选择性。此外,还对 ADAAM 的 N 原子与稀土离子之间的相互作用进行了评估,以确定是否有任何稀土离子是开发高放射性液体废物中的次锕系元素(MAs)相互分离工艺的有效模拟物。研究证实,La 和 Ce 与 ADAAM 的胺 N 原子发生了相互作用,并显示出 N-K 边缘 XANES 光谱的峰值移动;这一发现表明,软相互作用是影响离子选择性的一个重要因素。因此,ADAAM 吸附剂对 RE 离子的选择因子与 MA 相似。由此得出结论,RE 离子是模拟 MAs 的合理物种。
期刊介绍:
Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.