Determination of Some Optical, Structural and Radiation Shielding Properties of Waste Glass from Cathode Ray Tube

IF 3.3 3区材料科学 Q3 CHEMISTRY, PHYSICAL

Silicon Pub Date : 2025-07-22 DOI:10.1007/s12633-025-03388-3

O. I. Sallam, Mohamed Asef Kariem, Taha A. Abdelrazak, Ahmed A. El-Sherif, Eman Yossri Frag

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引用次数: 0

Abstract

Recycling cathode ray tube (CRT) glass is essential for minimizing environmental impact and enhancing sustainability. The recycling of CRT glass addresses waste management issues and fosters a circular economy. This study distinguishes between two components of CRT glass samples: panel glass and neck glass, with the latter exhibiting a higher concentration of lead. Lead effectively absorbs and attenuates ionizing radiation, such as gamma and X-rays, rendering neck glass an effective radiation shield. Various measurements have been conducted to identify the structural characteristics of CRT glass samples, including XRD analysis, which confirmed the amorphous nature of each sample. Differential Scanning Calorimetry (DSC) measurements reveal that the glass transition temperature of the neck sample exceeds that of the panel sample by 55 °C. The neck glass exhibits a reduced energy gap value due to the high lead content, which may suggest the glass's structural resistance to radiation. The oxygen packing density and Urbach values decline for the neck sample, whereas the density increases from 2.6196 to 3.4044 g/cm³ for the panel and neck samples, respectively. Additionally, the highest values for effective atomic number (Z_eff), effective atomic cross-section (C_eff), and effective electron density (N_eff) were found in the neck glass sample when shielding parameters, such as the half value layer, tenth value layer, and mean free path, were calculated using the Phy-X/PSD program at various gamma-ray energy. Mass attenuation coefficient values were recorded as practical and theoretical. The findings indicated that the neck sample exhibited enhanced protective properties.

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阴极射线管废玻璃光学、结构和辐射屏蔽性能的测定

回收阴极射线管（CRT）玻璃对于减少环境影响和提高可持续性至关重要。CRT玻璃的回收处理解决了废物管理问题，并促进了循环经济。本研究区分了CRT玻璃样品的两种成分：面板玻璃和颈玻璃，后者显示出更高的铅浓度。铅有效地吸收和衰减电离辐射，如伽马射线和x射线，使颈部玻璃有效地屏蔽辐射。通过各种测量来确定CRT玻璃样品的结构特征，包括XRD分析，证实了每个样品的无定形性质。差示扫描量热法（DSC）测量显示，颈部样品的玻璃化转变温度比面板样品高55℃。颈部玻璃由于铅含量高，能隙值减小，这可能表明玻璃的结构抗辐射。颈部样品的氧堆积密度和Urbach值下降，而面板和颈部样品的密度分别从2.6196 g/cm3增加到3.4044 g/cm3。此外，利用Phy-X/PSD程序计算不同γ射线能量下的屏蔽参数，如半值层、十值层和平均自由程时，发现颈玻璃样品的有效原子序数（Zeff）、有效原子截面（Ceff）和有效电子密度（Neff）的最大值。记录了质量衰减系数的实际值和理论值。研究结果表明，颈部样品显示出增强的保护性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Silicon CHEMISTRY, PHYSICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

5.90

自引率

20.60%

发文量

685

审稿时长

>12 weeks

期刊介绍： The journal Silicon is intended to serve all those involved in studying the role of silicon as an enabling element in materials science. There are no restrictions on disciplinary boundaries provided the focus is on silicon-based materials or adds significantly to the understanding of such materials. Accordingly, such contributions are welcome in the areas of inorganic and organic chemistry, physics, biology, engineering, nanoscience, environmental science, electronics and optoelectronics, and modeling and theory. Relevant silicon-based materials include, but are not limited to, semiconductors, polymers, composites, ceramics, glasses, coatings, resins, composites, small molecules, and thin films.