Analysis of gamma dose dependent nanostructure, morphological, optical and electrical properties of CeO2 thin films

Aldawood, S.; AlGarawi, M. S.; Shar, Muhammad Ali; Ali, Syed Mansoor

doi:10.1016/j.jksus.2020.05.004

Cited by 12 publications

(4 citation statements)

References 19 publications

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“…Moreover, slightly broadening of XRD main peak of irradiated samples have also been noticed as shown in the inset of Figure 1. The presented results show a good agreement with the reported effects obtained by Aldawood et al [15]. The structural parameters of Ce2S3 samples pre and post 𝛾 rays exposed with variation of gamma ray doses value can be computed by (111) orientation using the Debye Scherrer formula (Eq.…”

Section: Resultssupporting

confidence: 89%

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Investigation of gamma induced effects on the properties of gamma irradiated Ce2S3 thin films

Aldawood

2024

J. Phys.: Conf. Ser.

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Nanostructure cerium sulphide (Ce2S3) thin films were prepared using successive ionic layer adsorption and reaction (SILAR). The properties of the prepared samples were investigated as a function of gamma rays’ doses of 0, 250, 500, and 1000Gy, respectively. The X-ray diffraction (XRD) results suggest an orthorhombic phase structure for Ce2S3 thin films and the crystallinity is enhanced with increasing gamma-ray doses. The irradiated thin films exhibit a variation in the energy band gap associated with the quantum confinement effect with larger grain size. This simple strategy of modifying properties of Ce2S3 thin films by the incident gamma rays can be an attractive way to investigate this material for dosimetry and radiation detection.

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Section: Resultssupporting

confidence: 89%

“…Hence, we can control that gamma ray modifications meaningfully and change the electrical properties of the interacting thin films [22]. Aldawood et al described similar consequences for gamma exposed PbI thin films [15].…”

Section: Resultsmentioning

confidence: 92%

Investigation of gamma induced effects on the properties of gamma irradiated Ce2S3 thin films

Aldawood

2024

J. Phys.: Conf. Ser.

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“…This was due to the fact that the P(NIPAAM-PVP-PEGDA-DMAEMA) nanogels have reached their maximum polymerization. The surface energy of the P(NIPAAM-PVP-PEGDA-DMAEMA) nanogels plays a key role in situating the atoms and the chosen polymer once they interrelate with the high energy of gamma rays [38,39]. Similarly, Kozlovskiy and the associates [40] determined that an escalation in the gamma irradiation dose influences polymer size enlargement.…”

Section: Thermosensitive Nanogel Size: Effect Of Differential Temperaturementioning

confidence: 99%

Nanogels obtained by gamma radiation induced polymerization

Shafie

Hamzah

Ali

2021

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The influence of 2-(dimethylamino)ethyl methacrylate (DMAEMA) concentration on the temperature sensitivity of nanogels based on N-isopropylacrylamide (NIPAAM), poly(vinylpyrrolidone) (PVP), poly(ethylene glycol) diacrylate (PEGDA) by gamma radiation induced polymerization was investigated. Dynamic light scattering (DLS) and zeta potential measurements were used to characterize the nanogels. Temperature has been found to cause the nanogel particles to swell and shirnkage, allowing controlled dosing of the drug contained in capsules. The developed nanogels are promising materials with great potential for biomedical applications.

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“…Such a trend is observed by the formation of cracks on the surface as well as free radicals due to gamma irradiation [40]. On the other hand, an adverse trend of surface roughness decreasing with increasing gamma irradiation doses has also been reported [41,42]. Specifically, the surface roughness of polymer electrolytes became smoother and a decline in their spherulite structure occurred as the gamma irradiation dose increased [41].…”

Section: Structural and Morphological Characterization Of Rice Huskmentioning

confidence: 99%

Extractability of Rice Husk Waste Using Green Gamma Radiation for Dye Elimination in Laboratory-Scale Sorption System: Equilibrium Isotherm and Kinetic Analysis

et al. 2023

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Nowadays, the use of natural materials and especially “waste” valorization has evolved and attracted the wide attention of scientists and academia. In this regard, the use of rice husk (RH) powder as a naturally abundant and cheap byproduct material is gaining superior attention. However, improving the physicochemical properties of such RH is still under research. In the current investigation, the modification of rice husk (RH) via γ-irradiation has shown to be a promising green tool to meet such a need. Clean, prepared, powdered RH samples were subjected to various γ-radiation doses, namely 5, 10, 15 and 25 kGy, and the corresponding samples were named as RH-0, RH-5, RH-10, RH-15, RH-15 and RH-25. Then, the samples were characterized via scanning electron microscopy (SEM). After irradiation, the samples showed an increase in their surface roughness upon increasing the γ-radiation up to 15 kGy. Furthermore, the sorption capacity of the irradiated RH samples was investigated for eliminating Urolene Blue (UB) dye as a model pharmaceutical effluent stream. The highest dye uptake was recorded as 14.7 mg/g, which corresponded to the RH-15. The adsorption operating parameters were also investigated for all of the studied systems and all adsorbents showed the same trend, of a superior adsorption capacity at pH 6.6 and high temperatures. Langmuir and Freundlich isotherm models were also applied for UB adsorption and an adequate fitted isotherm model was linked with Langmuir fitting. Moreover, the pseudo-second-order kinetic model provided the best fit for the adsorption data. Experimental assays confirmed that the UB dye could be successfully eradicated feasibly from the aqueous stream via a sustainable green methodology.

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Analysis of gamma dose dependent nanostructure, morphological, optical and electrical properties of CeO2 thin films

Cited by 12 publications

References 19 publications

Investigation of gamma induced effects on the properties of gamma irradiated Ce2S3 thin films

Investigation of gamma induced effects on the properties of gamma irradiated Ce2S3 thin films

Nanogels obtained by gamma radiation induced polymerization

Extractability of Rice Husk Waste Using Green Gamma Radiation for Dye Elimination in Laboratory-Scale Sorption System: Equilibrium Isotherm and Kinetic Analysis

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