4.6 Article

Characterization and Gamma-ray Shielding Performance of Calcinated and Ball-Milled Calcinated Bentonite Clay Nanoparticles

期刊

CRYSTALS
卷 12, 期 8, 页码 -

出版社

MDPI
DOI: 10.3390/cryst12081178

关键词

calcinated bentonite; ball-milled bentonite; gamma-ray shielding; Monte Carlo simulation

资金

  1. Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia [PNURSP2022R57]

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This investigation focused on fabricating two different composite-based bentonite clay minerals and studying their characterization and radiation shielding parameters. The results showed that the grain size of the materials has a significant impact on the gamma-ray shielding capacity.
The current investigation deals with the fabrication of two various composite-based bentonite clay minerals. The characterization and radiation shielding parameters for the two fabricated composites (calcinated and ball-milled calcinated bentonite) were studied. X-ray diffraction was utilized to illustrate the crystalline phase of the fabricated composites. Furthermore, Williamson and Hall's method was used to determine the grain size of both the calcinated and ball-milled calcinated composites. The particle size, according to the calculation was 39.84 nm, and the strain was 0.216 for the calcinated bentonite, while the particle size of the ball-milled bentonite was 26.96 nm, and the strain was 0.219. In comparison, the transmission electron microscope (TEM) showed that the grain size of the calcinated bentonite was 566.59 nm, and it was 296.21 nm for the ball-milled calcinated bentonite. The density of the fabricated composites varied between 1.60 and 186 g/cm(3) for the calcinated bentonite and between 1.83 and 2.075 g/cm(3) for the ball-milled calcinated bentonite. Moreover, the radiation shielding capacity of the composites was analyzed. The results show that the gamma-ray attenuation capacity of ball-milled calcinated bentonite is high compared to ordinary calcinated bentonite. These results confirm the effect of particle grain size on optimizing the gamma-ray shielding capacity of the fabricated materials.

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