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Investigation of Gamma-Ray Shielding Properties of Bismuth Oxide Nanoparticles with a Bentonite–Gypsum Matrix

Due to the present industrial world, the risk of radioactivity is notably increasing. Thus, an appropriate shielding material needs to be designed to protect humans and the environment against radiation. In view of this, the present study aims to design new composites of the main matrix of bentonite...

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Autores principales: Abbas, Mahmoud I., El-Khatib, Ahmed M., Elsafi, Mohamed, El-Shimy, Sarah N., Dib, Mirvat F., Abdellatif, Hala M., Baharoon, Raqwana, Gouda, Mona M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10004324/
https://www.ncbi.nlm.nih.gov/pubmed/36903170
http://dx.doi.org/10.3390/ma16052056
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author Abbas, Mahmoud I.
El-Khatib, Ahmed M.
Elsafi, Mohamed
El-Shimy, Sarah N.
Dib, Mirvat F.
Abdellatif, Hala M.
Baharoon, Raqwana
Gouda, Mona M.
author_facet Abbas, Mahmoud I.
El-Khatib, Ahmed M.
Elsafi, Mohamed
El-Shimy, Sarah N.
Dib, Mirvat F.
Abdellatif, Hala M.
Baharoon, Raqwana
Gouda, Mona M.
author_sort Abbas, Mahmoud I.
collection PubMed
description Due to the present industrial world, the risk of radioactivity is notably increasing. Thus, an appropriate shielding material needs to be designed to protect humans and the environment against radiation. In view of this, the present study aims to design new composites of the main matrix of bentonite–gypsum with a low-cost, abundant, and natural matrix. This main matrix was intercalated in various amounts with micro- and nanosized particles of bismuth oxide (Bi(2)O(3)) as the filler. Energy dispersive X-ray analysis (EDX) recognized the chemical composition of the prepared specimen. The morphology of the bentonite–gypsum specimen was tested using scanning electron microscopy (SEM). The SEM images showed the uniformity and porosity of a cross-section of samples. The NaI (Tl) scintillation detector was used with four radioactive sources ((241)Am, (137)Cs, (133)Ba, and (60)Co) of various photon energies. Genie 2000 software was used to determine the area under the peak of the energy spectrum observed in the presence and absence of each specimen. Then, the linear and mass attenuation coefficients were obtained. After comparing the experimental results of the mass attenuation coefficient with the theoretical values from XCOM software, it was found that the experimental results were valid. The radiation shielding parameters were computed, including the mass attenuation coefficients (MAC), half-value layer (HVL), tenth-value layer (TVL), and mean free path (MFP), which are dependent on the linear attenuation coefficient. In addition, the effective atomic number and buildup factors were calculated. The results of all of these parameters provided the same conclusion, which confirms the improvement of the properties of γ-ray shielding materials using a mixture of bentonite and gypsum as the main matrix, which is much better than using bentonite alone. Moreover, bentonite mixed with gypsum is a more economical means of production. Therefore, the investigated bentonite–gypsum materials have potential uses in applications such as gamma-ray shielding materials.
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spelling pubmed-100043242023-03-11 Investigation of Gamma-Ray Shielding Properties of Bismuth Oxide Nanoparticles with a Bentonite–Gypsum Matrix Abbas, Mahmoud I. El-Khatib, Ahmed M. Elsafi, Mohamed El-Shimy, Sarah N. Dib, Mirvat F. Abdellatif, Hala M. Baharoon, Raqwana Gouda, Mona M. Materials (Basel) Article Due to the present industrial world, the risk of radioactivity is notably increasing. Thus, an appropriate shielding material needs to be designed to protect humans and the environment against radiation. In view of this, the present study aims to design new composites of the main matrix of bentonite–gypsum with a low-cost, abundant, and natural matrix. This main matrix was intercalated in various amounts with micro- and nanosized particles of bismuth oxide (Bi(2)O(3)) as the filler. Energy dispersive X-ray analysis (EDX) recognized the chemical composition of the prepared specimen. The morphology of the bentonite–gypsum specimen was tested using scanning electron microscopy (SEM). The SEM images showed the uniformity and porosity of a cross-section of samples. The NaI (Tl) scintillation detector was used with four radioactive sources ((241)Am, (137)Cs, (133)Ba, and (60)Co) of various photon energies. Genie 2000 software was used to determine the area under the peak of the energy spectrum observed in the presence and absence of each specimen. Then, the linear and mass attenuation coefficients were obtained. After comparing the experimental results of the mass attenuation coefficient with the theoretical values from XCOM software, it was found that the experimental results were valid. The radiation shielding parameters were computed, including the mass attenuation coefficients (MAC), half-value layer (HVL), tenth-value layer (TVL), and mean free path (MFP), which are dependent on the linear attenuation coefficient. In addition, the effective atomic number and buildup factors were calculated. The results of all of these parameters provided the same conclusion, which confirms the improvement of the properties of γ-ray shielding materials using a mixture of bentonite and gypsum as the main matrix, which is much better than using bentonite alone. Moreover, bentonite mixed with gypsum is a more economical means of production. Therefore, the investigated bentonite–gypsum materials have potential uses in applications such as gamma-ray shielding materials. MDPI 2023-03-02 /pmc/articles/PMC10004324/ /pubmed/36903170 http://dx.doi.org/10.3390/ma16052056 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Abbas, Mahmoud I.
El-Khatib, Ahmed M.
Elsafi, Mohamed
El-Shimy, Sarah N.
Dib, Mirvat F.
Abdellatif, Hala M.
Baharoon, Raqwana
Gouda, Mona M.
Investigation of Gamma-Ray Shielding Properties of Bismuth Oxide Nanoparticles with a Bentonite–Gypsum Matrix
title Investigation of Gamma-Ray Shielding Properties of Bismuth Oxide Nanoparticles with a Bentonite–Gypsum Matrix
title_full Investigation of Gamma-Ray Shielding Properties of Bismuth Oxide Nanoparticles with a Bentonite–Gypsum Matrix
title_fullStr Investigation of Gamma-Ray Shielding Properties of Bismuth Oxide Nanoparticles with a Bentonite–Gypsum Matrix
title_full_unstemmed Investigation of Gamma-Ray Shielding Properties of Bismuth Oxide Nanoparticles with a Bentonite–Gypsum Matrix
title_short Investigation of Gamma-Ray Shielding Properties of Bismuth Oxide Nanoparticles with a Bentonite–Gypsum Matrix
title_sort investigation of gamma-ray shielding properties of bismuth oxide nanoparticles with a bentonite–gypsum matrix
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10004324/
https://www.ncbi.nlm.nih.gov/pubmed/36903170
http://dx.doi.org/10.3390/ma16052056
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