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Spectroscopic markers for uranium(VI) phosphates. Part II: the use of time-resolved photoluminescence

机译:磷酸铀(VI)的光谱标记。第二部分:使用时间分辨光致发光

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Detection of uranium hydrates that are relevant for environmental sustainability and adsorption at surfaces is effected using time-resolved photoluminescence spectroscopy (TRPL) with simultaneous lifetime and spectral acquisitions. The study is the second paper devoted to this topic (part I: Faulques et al. RSC Adv., 2015, 5, 71219) and focuses on photoluminescence (PL) phenomena. When a temporal dimension is added, the TRPL technique surpasses, via PL decay analysis, steady-state approaches for discriminating minerals with very similar optical and PL spectra. Further, estimates of quantum yields and nonradiative lifetimes can be given. The results are pertinent in the context of remote sensing of parent hazardous uranyl compounds in the environment.
机译:使用时间分辨光致发光光谱法(TRPL)并同时进行寿命和光谱采集,可以检测与环境可持续性和表面吸附有关的铀水合物。该研究是针对该主题的第二篇论文(第一部分:Faulques等,RSC Adv。,2015,5,71219),重点研究了光致发光(PL)现象。当添加时间维度时,通过PL衰减分析,技术超越了稳态方法,该方法可识别具有非常相似的光谱和PL光谱的矿物。此外,可以给出量子产率和非辐射寿命的估计。该结果与环境中母体有害铀酰化合物的遥感有关。

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