New approach to removal of hazardous Bypass Cement Dust (BCD) from the environment: 20Na2O-20BaCl2-(60-x)B2O3-(x)BCD glass system and Optical, mechanical, structural and nuclear radiation shielding competences

A I Elazaka; Hesham M H Zakaly; Shams A M Issa; M Rashad; H O Tekin; H A Saudi; V H Gillette; T T Erguzel; A G Mostafa

doi:10.1016/j.jhazmat.2020.123738

New approach to removal of hazardous Bypass Cement Dust (BCD) from the environment: 20Na2O-20BaCl₂-(60-x)B₂O₃-(x)BCD glass system and Optical, mechanical, structural and nuclear radiation shielding competences

J Hazard Mater. 2021 Feb 5:403:123738. doi: 10.1016/j.jhazmat.2020.123738. Epub 2020 Aug 18.

Authors

A I Elazaka¹, Hesham M H Zakaly², Shams A M Issa³, M Rashad⁴, H O Tekin⁵, H A Saudi⁶, V H Gillette⁷, T T Erguzel⁸, A G Mostafa⁹

Affiliations

¹ Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt; Institute of Nuclear Physics and Engineering, National Research Nuclear University MEPhI, Moscow, Russia.
² Institute of Physics and Technology, Ural Federal University, Yekaterinburg, 620002, Russia; Faculty of Science, Al-Azhar University, Assuit Branch, 71524, Assuit, Egypt.
³ Faculty of Science, Al-Azhar University, Assuit Branch, 71524, Assuit, Egypt; Physics Department, Faculty of Science, University of Tabuk, Tabuk, 71451, Saudi Arabia.
⁴ Physics Department, Faculty of Science, University of Tabuk, Tabuk, 71451, Saudi Arabia; Physics Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt.
⁵ Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates. Electronic address: tekin765@gmail.com.
⁶ Physics Department, Faculty of Science (Girls Branch), Al-Azhar University, Egypt.
⁷ Research Institute for Sciences and Engineering (RISE), University of Sharjah, 27272, Sharjah, United Arab Emirates; Department of Mechanical and Nuclear Engineering, College of Engineering, University of Sharjah, 27272, Sharjah, United Arab Emirates.
⁸ Department of Software Engineering, Faculty of Engineering and Natural Sciences, Uskudar University, 34672, Istanbul, Turkey.
⁹ Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt.

PMID: 33264899
DOI: 10.1016/j.jhazmat.2020.123738

Abstract

In the present work, aiming to collaborate in the removal of Bypass Cement Dust (BCD) from the environment, we studied a system consisting of three glasses prepared from analytical reagent grade chemicals with the following composition: 20Na₂O-20BaCl₂-(60-x)B₂O₃-xBCD, where (x = 0, 10, and 20 %). BCD is an important contributor of many respiratory human health issues. In this work we investigate their optical, physical and gamma-ray shielding properties. The experimental results of mass attenuation coefficients are contrasted with the FLUKA Monte Carlo code and the XCOM database at 0.081, 0.356, 0.662, 1.173, and 1.332 MeV photon energies. Additionally, the mechanical, structural, and optical properties of these glasses were measured. A rising peak with an increase of BCD concentration in the region from 450 cm^-1 to 480 cm^-1 was observed. The results show that shielding properties such as the mass attenuation coefficient (μ_m), the effective atomic number (Z_eff), and the effective electron density (N_el) increase as BCD fraction increases. The half value layer (HVL), the tenth value layer (TVL), and the mean free path (MFP) decrease as the BCD content increases. It is noticed that 20Na₂O-20BaCl₂-(60-x)B₂O₃-xBCD, where (x = 0, 10, and 20 %), has the highest optical conductivity value at x = 20%. It was found that the gradual addition of BCD content increases the hardness of the studied glasses.

Keywords: FLUKA; Mechanical properties; Nuclear radiation shielding; Structural properties; optical properties.