RADIO-OPTICAL response of cerium-doped lithium gadolinium bismuth borate glasses

Ahmad, Zohaib; Ali, Shahid; Ahmad, Habib; Hayat, Khizar; Iqbal, Yaseen; Zulfiqar, Syed; Zaman, F.; Rooh, Gul; Kaewkhao, J.

doi:10.1016/j.jlumin.2020.117341

Cited by 16 publications

(3 citation statements)

References 30 publications

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“…The bands at 1,200-1,600 cm −1 are related to stretching vibration of trigonal BO 3 units, such as bands at 1,210 and 1,390 cm −1 for TiO 2 doped glass FTIR spectra measurements of T3 strontium borate glass before and after 40 kGy of gamma radiation and bands at 1,320, 1,390, 1,470, and 1,670 cm −1 for CaF 2 doped glass. The high distinctive band, 1,390 cm −1 for the two glasses, can be correlated to diborate ring vibrations between B 3 O 6 -BO 3 links and/or stretching vibration of tetra/penta-borate rings [37]. Many observed bands were discovered in the region 1,600-4,000 cm −1 linked with the vibration of H-bonded, such as broad bands nearly at 2,000-2,300 cm −1 , in addition to the vibrations of molecular H 2 O, OH, and B-OH units [38][39].…”

Section: Ftir Absorption Spectramentioning

confidence: 92%

Antibiofilm Efficiency of CaF2/TiO2 Strontium Borate Bioactive Glass Composites against Pseudomonas aeruginosa and Gamma Radiation Effect

Abou Hussein,

Abou Hussien,

Ibrahim

et al. 2024

Indones. J. Chem.

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Microbial drug resistance has emerged as one of the most fundamental health threats. The current work aims to assess the antibacterial and antibiofilm potential of strontium borate bio-glasses (BBGs). Three CaF2/TiO2 strontium borate compositions have been prepared through melting annealing methods. The XRD pattern displays the amorphous nature of the glassy samples. The primary structural components of the borate, the trigonal BO3 and tetrahedral BO4 group, can be observed in FTIR spectra. Sharpness and shifting peaks to longer wavenumbers were evident after 40 kGy of gamma radiation. In contrast, density and molar volume (Vm) reveal an obvious change after irradiation. The agar diffusion technique was conducted as a preliminary screening of the antibacterial activity against Pseudomonas aeruginosa. The studied samples possessed no antimicrobial activity toward this strain; however, samples with 2% CaF2 strontium borate (T1) and 5% TiO2 strontium borate (T3) had higher biofilm inhibition potential (inhibition percentages of 75.17 and 65.77%, respectively). The gamma irradiation procedure had an unexpected detrimental effect on the bio-glass antibiofilm activity, making it unsuitable for use in sterilization procedures. Collectively, BBGs could be further investigated as possible antibacterial agents against biofilm-producing resistant strains.

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Section: Ftir Absorption Spectramentioning

confidence: 92%

Antibiofilm Efficiency of CaF2/TiO2 Strontium Borate Bioactive Glass Composites against Pseudomonas aeruginosa and Gamma Radiation Effect

Abou Hussein,

Abou Hussien,

Ibrahim

et al. 2024

Indones. J. Chem.

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“…5, 6, and 7, there is unexpected improving in the glasses chemical durability after being irradiated with 80 kGy, where the weight loss% of irradiated glasses are decreased near to 0 %, indicating the positive effect of radiation on the glass chemical properties. This performance can be attributed to the possible modifications in the glass structure due to the effect of irradiation where some bonding rearrangements may take place causing healing of the present defect centers present in the glassy network, then the release of the extra energy stored in the network, thus more relaxed and more chemically stable structures obtained (Ahmad et al 2020).…”

Section: Effect Of Gamma Irradiationmentioning

confidence: 99%

Chemical durability and shielding study of borosilicate glass systems from solid municipal waste ash for radiation shielding applications

Hussein,

Shaban,

Madbouly

2024

Opt Quant Electron

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Based on municipal solid waste (MSW) ash as a main raw material, three novel borosilicate glasses with the composition of 70 waste + 20 borax + 10 Na2O + x ZrO2, where x = 0, 0.1 or 0.3 (wt. %),were prepared by the traditional melting-annealing technique. The prepared glasses were analyzed by EDX analysis, revealing the rich compositions of the prepared glasses correlated to the MSW ash used by 70 wt.% in preparing glasses. Some optical, chemical and radiation shielding properties of the prepared glasses were investigated. Either Zr addition or 80 kGy of gamma radiation revealed improvement of the glasses optical transmittance and chemical durability in neutral dis H2O, alkaline 0.1 N NaOH and acidic 0.1 N HCl leaching media for 70 days. Electron spin resonance (ESR) revealed the same spectra before and after irradiation, referring to the prevention of free radical formation by irradiation.The shielding parameters were measured by the experimental gamma spectroscopy (NaI detector) and the theoretical Phy-X/PSD software e.g., linear attenuation coefficients (LAC) and the findings revealed high unanimity among them at photon energies 0.662, 1.173 and 1.333 MeV. Another shielding parameters were also studied e.g., mass attenuation coefficients (MAC), effective atomic number (Zeff), effective electron density (Neff) and effective conductivity (Ceff). Presence of various metal oxides and the host trigonal BO3 and tetrahedral BO4 and SiO4 units, and ZrO2 provide the glasses compactness and effectual stability against ionizing irradiation. The prepared borosilicate glasses have highly strong and compacted structures that can inhibit the passage of radiation photons, because of the variety of many glass network formers, intermediates and modifiers present in the used waste ash. The results indicate the highly economic benefit of the prepared glasses, where the useless MSW ash are used mainly by 70 wt.% to produce effective borosilicate glass systems for promising radiation shielding purposes, especially 0.3 Zr borosilicate glass that has the best radiation shielding properties.

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“…For laser applications and optical amplifiers, the trivalent rare earth ions neodymium, erbium, and praseodymium are utilized [8][9][10]. Trivalent cerium is utilized as a UV-blocking agent in PV covering materials to enhance the efficiency of solar cells, lasers, luminescence materials, and scintillator materials [11,12]. The trivalent cerium ion is a rare earth ion that exhibits luminescence in the ultraviolet to visible region.…”

Section: Introductionmentioning

confidence: 99%

Physical and Optical Properties of CeF3 Doped with Aluminium Fluorophosphate Glasses

Panggabean,

Simamora,

Rajagukguk

et al. 2024

MSF

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Glass doped with cerium is an attractive material for a variety of applications. The aluminium fluorophosphate glasses were made by the conventional melt-quenching technique. The glass samples were characterized by density, refractive index, FTIR and photoluminescence spectra. The density was shown to increase, but refractive and molar volume were shown to decrease. The FTIR spectra of these glasses showed mainly [PO3] and [PO4] structural units. Transparency of the glass samples is demonstrated by a transmission intensity in the 70-80% range. Regarding the optical properties, under 307 nm excitation, the emission peak around 348 nm of the CeF3-doped aluminium fluorophosphate glasses was confirmed. The emission would be due to the 5d→4f transitions of Ce3+ ions.

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RADIO-OPTICAL response of cerium-doped lithium gadolinium bismuth borate glasses

Cited by 16 publications

References 30 publications

Antibiofilm Efficiency of CaF<sub>2</sub>/TiO<sub>2</sub> Strontium Borate Bioactive Glass Composites against <i>Pseudomonas aeruginosa</i> and Gamma Radiation Effect

Antibiofilm Efficiency of CaF<sub>2</sub>/TiO<sub>2</sub> Strontium Borate Bioactive Glass Composites against <i>Pseudomonas aeruginosa</i> and Gamma Radiation Effect

Chemical durability and shielding study of borosilicate glass systems from solid municipal waste ash for radiation shielding applications

Physical and Optical Properties of CeF<sub>3</sub> Doped with Aluminium Fluorophosphate Glasses

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