Polymeric gamma rays shield promoted by ferrite nanoparticles synthesized with Ni and Zn cations

IF 2.8 3区 物理与天体物理 Q3 CHEMISTRY, PHYSICAL
Mohammad Marashdeh , Fawzy Hammad Sallam , K.A. Mahmoud , M. Rashad , M.I. Sayyed , Hanan Akhdar , Mohamed Tharwat
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引用次数: 0

Abstract

Nanocrystalline ferrite with spinel nickel and zinc cations has been prepared according to the formula ZnxNi1- xFe2O4 where x = 0.1. After that, the synthesized Zn0.1Ni0.9Fe2O4 was inserted in a polystyrene polymer with concentrations of 0, 5, 10, and 15 wt% using melt-processing technique. The properties of the nanocomposites including structural, morphological, and thermal properties are attained using X-ray analysis, Fourier transform infrared spectroscopy (FTIR), transmission electron microscope (TEM), scanning electron microscope (SEM), energy dispersive X-ray (EDX) spectrometry, and thermogravimetric analysis (TGA). The elemental composition and existence of cations in the composite structure are verified also the crystal size of the nano-ferrite is equal to 28.18 nm. According to the chemical composition obtained by EDX spectroscopy the Ni increased in the fabricated composite samples between 0 and 2.3 wt%. The increase in Ni concentration is associated by an increase in the density of fabricated composites between 1.042 and 1.211 g/cm3, respectively. Then, the increase in the Ni concentrations within the fabricated composites enhances the radiation shielding properties of fabricated composites as proved by the Monte Carlo simulation over the energy interval of 15–244 keV. The increase in the Ni concentration between 0 and 2.3 wt% increase the linear attenuation coefficient of fabricated composites between 0.881 and 6.933 cm−1 (at 15 keV), 0.184–0.330 cm−1 (at 59.5 keV), and 0.120–0.140 cm−1 (at 244 keV), respectively. The enhancement in the linear attenuation coefficient decreases the half value thickness of fabricated composites to 0.10, 2.10, and 4.94 cm at 15, 59.5, and 244 keV, respectively.
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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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