Green chemistry preparation and characterization of borosilicate glass doped with dysprosium using degraded silica gel for white-light emission

IF 2.8 3区 物理与天体物理 Q3 CHEMISTRY, PHYSICAL
W. Rittisut , P. Manyum , N. Wantana , Y. Ruangtaweep , K. Kirdsiri , S. Rujirawat , K. Kamonsuangkasem , R. Yimnirun , A. Prasatkhetragarn , N. Intachai , S. Kothan , H.J. Kim , J. Kaewkhao
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Abstract

This study focuses on the preparation and characterization of dysprosium (Dy³⁺)-doped borosilicate glass, using degraded silica gel (DSG) as a network former instead of high-purity silica. The glasses were synthesized using the melt quenching method at 1200 °C and the chemical formula (69-X)B2O3–18Li2O–12BaO–XDSG-1.0Dy2O3, where X represents the concentration of degraded silica gel. The resulting glasses absorbed photons across ultraviolet, visible, and near-infrared wavelengths. The optimal DSG concentration for maximum photoluminescence was determined to be 10 mol%, which produced a color-correlated temperature (CCT) range of 4077–4649 K, exceeding the warm CCT threshold of 4000 K. The CIE color coordinate chart suggests that these samples are suitable for laser and white-light applications. The I–H model (with S = 6) confirmed dipole–dipole interactions during the energy transfer between Dy³⁺ ions. The glasses exhibited lifetimes in the millisecond range. Additionally, we prepared glass samples with varying Dy₂O₃ content in a suitable host (10Silicagel XDy glasses), maintaining the optimal DSG concentration at 10 mol%. The photoluminescence showed clear emission characteristics of Dy³⁺, closely resembling the radioluminescence spectra. Under excitation at λEx = 387 nm, the developed glass exhibited two strong emission peaks at 576 nm (4F9/2 → 6H13/2) and 484 nm (4F9/2 → 6H15/2). The results showed that the glass doped with 1.0 mol% Dy₂O₃ had the highest emission intensity, confirming that degraded silica gel is a promising alternative to high-purity SiO₂ for producing efficient, luminescent, and environmentally friendly white-light optical materials.
利用降解硅胶白光发射掺杂镝硼硅酸盐玻璃的绿色化学制备与表征
本研究重点研究了镝(Dy³+)掺杂硼硅酸盐玻璃的制备与表征,采用降解硅胶(DSG)代替高纯二氧化硅作为网络原体。采用熔体淬火法在1200℃下合成玻璃,化学式为(69-X) B2O3-18Li2O-12BaO-XDSG-1.0Dy2O3,其中X为降解硅胶的浓度。这种玻璃吸收了紫外线、可见光和近红外波长的光子。当DSG浓度为10 mol%时,产生的色相关温度(CCT)范围为4077 ~ 4649 K,超过了4000 K的温CCT阈值。CIE颜色坐标图表明这些样品适合激光和白光应用。I-H模型(S = 6)证实了Dy³+离子之间能量传递过程中的偶极子-偶极子相互作用。这些玻璃的寿命在毫秒范围内。此外,我们在合适的载体(10Silicagel XDy玻璃)中制备了不同Dy₂O₃含量的玻璃样品,保持最佳的DSG浓度为10 mol%。光致发光显示出Dy³⁺清晰的发射特征,与放射发光光谱非常接近。在λEx = 387 nm激发下,所制得的玻璃在576 nm (4F9/2→6H13/2)和484 nm (4F9/2→6H15/2)处有两个强发射峰。结果表明,掺入1.0 mol%的Dy₂O₃的玻璃具有最高的发射强度,这证实了降解硅胶是一种有希望的替代品,可以替代高纯度的SiO₂,用于生产高效、发光和环保的白光光学材料。
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来源期刊
Radiation Physics and Chemistry
Radiation Physics and Chemistry 化学-核科学技术
CiteScore
5.60
自引率
17.20%
发文量
574
审稿时长
12 weeks
期刊介绍: Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.
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