Bismuth oxide-based nanocomposite for high-energy electron radiation shielding

Chen, Siyuan; Nambiar, Shruti; Li, Zhenhao; Osei, Ernest; Darko, Johnson; Zheng, Wanping; Sun, Zhigang; Liu, Ping; Yeow, John T. W.

doi:10.1007/s10853-018-3063-0

Cited by 30 publications

(12 citation statements)

References 37 publications

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“…A Scanning Electron Microscope (SEM) [JSM-6010LV, JEOL] is based on scanning the sample where the electron beam focused over a sample surface to create images. The electron beam interacts with the sample producing various signals that used to obtain information about the cross section topography and composition 16 , 17 .…”

Section: Methodsmentioning

confidence: 99%

Effect of PbO-nanoparticles on dimethyl polysiloxane for use in radiation shielding applications

El‐Khatib

Abbas

Hammoury³

et al. 2022

Sci Rep

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In this work, morphological and attenuation parameters of gamma ray protection were studied. Dimethyl polysiloxane (Silicon Rubber) Mixed with micro-size and nano-size lead oxide particles at different weight percentage were prepared. The morphological structure of PbO/SR composites was investigated by SEM test, according to SEM images the nano PbO particles are more uniform micro PbO particles. The radiation attenuation test was carried out using 3ʺ × 3ʺ NaI (TI) detector for (Am-241), (Cs-137), (Co-60), (Ba-133), and (Eu-152). The effect on attenuation property of SR-PbO shown that the increase of PbO filler significantly increases the linear attenuation coefficient and improve the other radiation protection parameters especially at low gamma energy. It's found that a significant agreement between the experimental result and theoretical result from Xcom program. In this study it's found matrix filled with nano-PbO have higher gamma shielding ability compared to micro-PbO matrix at the same filler concentration. It can say that SR-nano PbO has a higher radiation protection than SR-micro PbO compositions.

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Section: Methodsmentioning

confidence: 99%

Effect of PbO-nanoparticles on dimethyl polysiloxane for use in radiation shielding applications

El‐Khatib

Abbas

Hammoury³

et al. 2022

Sci Rep

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“…FTIR spectroscopy is useful to obtain samples molecular "fingerprint" and observe the possible chemical structure change in developed composites. 29 Surface morphology and fillers dispersion of developed nanocomposites was evaluated by Zeiss Ultra plus SEM at different magnitudes. The fabricated composites were cut into small pieces and placed on aluminum stubs using double-sided carbon tapes.…”

Section: Characterizationmentioning

confidence: 99%

Lightweight and flexible bismuth oxide composite with enhancedx‐rayshielding efficiency

Cheraghi

Chen

Liu

et al. 2022

J of Applied Polymer Sci

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Lead‐based shielding materials are commonly used to protect clinical personnel and patients from high energy x‐ray radiations. However, the toxicity and heavy weight of lead can result in serious health concerns and limit its applications. Alternatively, polymer composites are known as one of the potential candidates to shield high energy photons. Herein, polydimethylsiloxane (PDMS) nanocomposites are fabricated using different weight percentages (wt.%) of bismuth oxide (Bi2O3) and multi walled carbon nanotube (MWCNT) nanoparticles. The mechanical strength of nanocomposites is evaluated by Instron 5548 Micro Tester. Also, x‐ray shielding properties are characterized using continuous x‐ray energies from 60 to 90 keV. To study the effect of the nanocomposite structure on mechanical and shielding properties, multilayer nanocomposites in 2 to 5 layers are also fabricated with alternately PDMS/Bi2O3 and PDMS/MWCNT layers and are characterized by the same methods. The 5‐layer nanocomposite improves the mechanical strength from 1.7 MPa in neat PDMS to 4.68 MPa. It is also capable of attenuating 89% of the scattered x‐rays generated at a tube potential of 60 keV, with a weight advantageous in comparison with pure lead.

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“…Unfortunately, lead is highly toxic and a known carcinogen. Due to this reason, bismuth salts and oxides have been proposed as a safer and lighter alternative to lead (14)(15)(16)(17)(18)(19)(20)(21)(22)(23). Bismuth oxide nanoparticles have been used to coat textile surfaces.…”

Section: Introductionmentioning

confidence: 99%

Advanced X-ray shielding and antibacterial smart multipurpose fabric impregnated with polygonal shaped bismuth oxide nanoparticles in carbon nanotubes via green synthesis

Verma

Mili

Sharma

et al. 2021

Green Chemistry Letters and Reviews

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Synthesis of multifunctional hybrid materials for X-rays' attenuation is attracting more recognition recently because of several superiorities over the conventional radiation shielding materials made using toxic lead-based compounds. For the first time*, the present study investigates the microwave irradiation based green synthesis and in-situ stabilization of bismuth oxide (Bi 2 O 3 ) nanoparticles on multiwalled carbon nanotubes (MWCNT) by a novel approach for making advanced material. TEM and XRD studies have shown that nanoparticles have a uniform size with polygonal morphology and are impregnated on MWCNT. The developed hybrid nanocomposite's physical appearance is gel-like. It was then applied on a cotton fabric piece to create a multifunctional material and valuable for the fabrications of aprons, bandages, and X-ray shielding caskets. The porous nature of cotton fabric has facilitated the adhesion and stabilization of the nanocomposite. The elemental composition and topology of the hybrid material were further analyzed by XPS, EDX and AFM studies, respectively. The higher attenuation characteristics and shielding efficiency of the developed material are due to the dual shielding effect of polygonal nanoparticles and MWCNT. Availability of metal atoms with higher valency allowed the higher photoelectric effect followed by the Compton effect during X-ray shielding.

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Bismuth oxide-based nanocomposite for high-energy electron radiation shielding

Cited by 30 publications

References 37 publications

Effect of PbO-nanoparticles on dimethyl polysiloxane for use in radiation shielding applications

Effect of PbO-nanoparticles on dimethyl polysiloxane for use in radiation shielding applications

Lightweight and flexible bismuth oxide composite with enhancedx‐rayshielding efficiency

Advanced X-ray shielding and antibacterial smart multipurpose fabric impregnated with polygonal shaped bismuth oxide nanoparticles in carbon nanotubes via green synthesis

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