通过 EXAFS 及其光致发光研究探究硼酸铝钡（BaAl2B2O7）基质中铀的位点占有率

IF 1 4区工程技术 Q4 INSTRUMENTS & INSTRUMENTATION

MAPAN Pub Date : 2024-06-21 DOI:10.1007/s12647-024-00750-5

Annapurna Rout, S. K. Jha, C. Nayak, D. Bhattacharyya, S. N. Jha

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引用次数: 0

摘要

人们最感兴趣的是一种可掺入铀等重元素且具有多种稳定形式的主基质。掺铀的 BaAl2B2O7 是通过溶液燃烧合成法合成的。发光研究表明，这种硼酸铝基质适合将铀稳定为铀酸盐（UO6 6-）。铀的寿命值表明铀被两种不同缺陷浓度的环境所包围。通过 EXAFS 研究探究了铀在 BaAl2B2O7 中的位点占据情况。据观察，铀掺入的首选位点是 Al3+ 规则晶格位点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

A Probe in to Site Occupancy of Uranium in Barium Aluminium Borate (BaAl2B2O7) Matrix by EXAFS and its Photoluminescence Studies

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A Probe in to Site Occupancy of Uranium in Barium Aluminium Borate (BaAl2B2O7) Matrix by EXAFS and its Photoluminescence Studies

A host matrix with a potential of incorporating heavy element like uranium, that have several forms of stabilization is the key interest. Uranium-doped BaAl₂B₂O₇ is synthesized through solution combustion synthesis method. The luminescence studies indicate suitability of this alumino borate matrix to stabilize uranium as uranate (UO₆ ⁶⁻). The uranium life-time values suggest uranium to be surrounded by two different environments with varied defect concentration. The site occupancy of uranium in BaAl₂B₂O₇ is probed through EXAFS studies. It is observed that the preferred sites for uranium incorporation is the Al³⁺ regular lattice sites.

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来源期刊

MAPAN 工程技术-物理：应用

CiteScore

2.30

自引率

20.00%

发文量

审稿时长

3 months

期刊介绍： MAPAN-Journal Metrology Society of India is a quarterly publication. It is exclusively devoted to Metrology (Scientific, Industrial or Legal). It has been fulfilling an important need of Metrologists and particularly of quality practitioners by publishing exclusive articles on scientific, industrial and legal metrology. The journal publishes research communication or technical articles of current interest in measurement science; original work, tutorial or survey papers in any metrology related area; reviews and analytical studies in metrology; case studies on reliability, uncertainty in measurements; and reports and results of intercomparison and proficiency testing.