Preparation and structural characterization of PbO and WO3-PVC hybrid nanocomposites for gamma-ray radiation shielding

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2024-12-27 DOI:10.1016/j.radphyschem.2024.112489

Sepideh Yazdani-Darki, Mohammad Eslami-Kalantari, Hakimeh Zare, Ahmad Ramazani-MoghaddamArani

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引用次数: 0

Abstract

This study has been devoted to investigating the radiation shielding performance of Poly(vinyl chloride)-based nanostructures lead oxide (PbO) and tungsten oxide (WO3) reinforced composites. The scanning electron microscopy (SEM) images depicted the particle size and morphology of nanostructures such as PbO nanorods and WO3 nanoparticles. X-ray diffraction (XRD) results demonstrated a successful fabrication of a hybrid nanocomposite. The gamma-ray spectroscopy experiments have been carried out using a NaI(Tl) scintillation detector and Cs-137, Co- 60, and AM-241 sources and X-ray. The different weight percentages of each by mass were 5, 10, 20, 30, and 40 wt %, of mixed composite (35, 30, 20, 10, 5 wt % WO3 + 5, 10, 20, 30, 35 wt % PbO). The mass attenuation coefficients of the investigated composites were measured as a function of gamma-ray energies and X-rays utilizing standard radioactive sources. Increasing the PbO or WO3 nanostructures' weight percentages in the nanocomposites leads to increased radiation attenuation. Based on the results, the best radiation attenuation, the optimal half-value layer, the tenth value layer, and the mean free path were for PVC/WO3 5% + 35% PbO and PVC/WO3 10% + 30% PbO hybrid nanocomposite for Am-241, Cs-137, Co-60, and X-ray that replaced hybrid nanocomposite PVC/PbO 40%.

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PbO和WO3-PVC杂化纳米复合材料的制备及结构表征

本文研究了聚氯乙烯基纳米结构氧化铅（PbO）和氧化钨（WO3）增强复合材料的辐射屏蔽性能。扫描电镜（SEM）图像描述了PbO纳米棒和WO3纳米颗粒等纳米结构的粒径和形貌。x射线衍射（XRD）结果证明了复合材料的成功制备。用NaI（Tl）闪烁探测器和Cs-137、Co- 60、AM-241源和x射线进行了伽玛能谱实验。不同重量百分比的混合复合材料（35、30、20、10、5 wt % WO3 + 5、10、20、30、35 wt % PbO）的质量分别为5、10、20、30、40 wt %。利用标准放射源测量了所研究复合材料的质量衰减系数作为伽马射线能量和x射线的函数。增加PbO或WO3纳米结构在纳米复合材料中的重量百分比，导致辐射衰减增加。结果表明，PVC/WO3 5% + 35% PbO和PVC/WO3 10% + 30% PbO混合纳米复合材料对Am-241、Cs-137、Co-60的辐射衰减最佳、半值层最佳、10值层最佳、平均自由程最佳，x射线替代PVC/PbO混合纳米复合材料40%。

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来源期刊

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.