Application of photoluminescence microspectroscopy: a study on transfer of uranyl and europium ions on dry silica gel plate
Application of photoluminescence microspectroscopy: a study on transfer of uranyl and europium ions on dry silica gel plate
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光致发光显微光谱技术的应用:铀酰和铕离子在干硅胶板上的转移研究
DOI:
10.1080/00223131.2020.1755734
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发表时间:
2020
影响因子:
1.2
通讯作者:
Watanabe Masayuki
中科院分区:
文献类型:
--
作者:
Kusaka Ryoji;Watanabe Masayuki
When water contacts with porous materials, water and chemical species dissolved in the water transfer into the inside of the porous materials. Here, to study the transfer of uranyl and europium ions on a dry silica gel plate, we dropped a small amount of aqueous solution (~0.5 μL) dissolving the two ions on a dry silica gel plate, and the distributions of the two ions spread on the silica gel plate were observed by photoluminescence microspectroscopy. Photoluminescence images of uranyl and europium ions clearly show that when uranyl ion coexists in the solution, europium ion transfers in a larger area compared to uranyl ion. It can be interpreted that the larger-area distribution of europium ion is caused because uranyl ion is preferentially adsorbed to silica gel and the uranyl adsorption disturbs the adsorption of europium ion. The coexistence of uranyl ion may influence the mobility of other ion species.
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