Regulation and prediction of defect-related properties in ZnO nanosheets: synthesis, morphological and structural parameters, DFT study and QSPR modelling

Kochnev, Nikita; D.S.Tkachenko,; Kirsanov, Dmitry; Бобрышева, Н. П.; Osmolowsky, M. G.; Voznesenskiy, Mikhail; Osmolovskaya, O. M.

doi:10.1016/j.apsusc.2023.156828

Cited by 21 publications

(3 citation statements)

References 152 publications

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“…The strong band spotted from 2900 cm −1 to 2981 cm −1 was ascribed to the C–H stretching vibration. Interestingly, the broadening sharp peaks of the doped samples shifted to a higher wavenumber, clearly revealing the presence of Mg ions in the ZnO framework and increased strain and compressive stress [ 42 , 43 ].…”

Section: Discussionmentioning

confidence: 99%

Zinc Oxide and Magnesium-Doped Zinc Oxide Nanoparticles Ameliorate Murine Chronic Toxoplasmosis

Sarhan,

Felemban,

Alelwani

et al. 2024

Pharmaceuticals

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Toxoplasma gondii causes a global parasitic disease. Therapeutic options for eradicating toxoplasmosis are limited. In this study, ZnO and Mg-doped ZnO NPs were prepared, and their structural and morphological chrematistics were investigated. The XRD pattern revealed that Mg-doped ZnO NPs have weak crystallinity and a small crystallite size. FTIR and XPS analyses confirmed the integration of Mg ions into the ZnO framework, producing the high-purity Mg-doped ZnO nanocomposite. TEM micrographs determined the particle size of un-doped ZnO in the range of 29 nm, reduced to 23 nm with Mg2+ replacements. ZnO and Mg-doped ZnO NPs significantly decreased the number of brain cysts (p < 0.05) by 29.30% and 35.08%, respectively, compared to the infected untreated group. The administration of ZnO and Mg-doped ZnO NPs revealed a marked histopathological improvement in the brain, liver, and spleen. Furthermore, ZnO and Mg-doped ZnO NPs reduced P53 expression in the cerebral tissue while inducing CD31 expression, which indicated a protective effect against the infection-induced apoptosis and the restoration of balance between free radicals and antioxidant defense activity. In conclusion, the study proved these nanoparticles have antiparasitic, antiapoptotic, and angiogenetic effects. Being nontoxic compounds, these nanoparticles could be promising adjuvants in treating chronic toxoplasmosis.

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Section: Discussionmentioning

confidence: 99%

Zinc Oxide and Magnesium-Doped Zinc Oxide Nanoparticles Ameliorate Murine Chronic Toxoplasmosis

Sarhan,

Felemban,

Alelwani

et al. 2024

Pharmaceuticals

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“…The magnetic origin of metal oxides with weak conductivity at room temperature is generally consistent with the oxygen vacancy-bound spin-polarized electron model. In this theory, the magnetism of ZnO solid solution is produced by the interaction of transition metal ions with oxygen vacancies. − Therefore, in addition to considering the doping concentration and magnetic moment of magnetic ions, increasing the concentration of oxygen vacancies (OVs) in the crystal is also a good way to strengthen the room-temperature ferromagnetism of DMS materials. For example, OVs were introduced into Co 3 O 4 to accelerate the electron transfer between Fe/Mn and O to promote the catalytic reaction .…”

Section: Introductionmentioning

confidence: 99%

Enhanced Anticorrosion Properties and Mechanism of Co/N Codoped Modified ZnO Dilute Magnetic Solid Solutions

Tian

Chen

Liu

et al. 2023

ACS Appl. Eng. Mater.

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The micromagnetic field of magnetic materials helps to improve the anticorrosion properties, so magnetic enhancement measures may bring considerable corrosion inhibition ability. Based on the magnetic generation mechanism of ZnO, the concentration of oxygen vacancy in the crystal lattice was regulated by the doping of magnetic metal Co, the introduction of nonmetallic N, and light treatment, so as to achieve a gradual increase in magnetism. The increased magnetism meant that micromagnetic fields could control electron transport to a greater extent, slowing the rate of corrosion. Moreover, an external magnetic field was applied to the corrosion system and resulted in the formation of a dense secondary protective film on the surface. Results showed that for the corrosion resistance of Co/N codoped ZnO (CNZO) dilute magnetic solid solutions (DMSs), the composite impedance value increased by 1204.0% compared to the pure epoxy coating, and the impedance value increased again by 4100 ohm·cm2 after the application of an external magnetic field and is 5.73 times that of ZnO. This work also confirmed that the magnetic properties of ZnO-based DMSs were positively correlated with the corrosion resistance, which provided guidance for the design of corrosion inhibition materials in other systems.

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“…However, ZnO is susceptible to corrosion by light, resulting in low visible light utilization efficiency, high recombination rate of photogenerated electron hole pairs and low quantum efficiency, and it is challenging to obtain stable performance due to the inherent self-compensation effect of its donor. Because of this, creating high-efficiency UV photodetectors based on ZnO homojunction is almost impossible [27][28][29]. Compared with bulk structures, the nanostructured form of ZnO provides excellent optical and electrical properties, and the composite modification of nanostructured ZnO with semiconductors can reduce the recombination rate of photogenerated electron hole pairs, which improves the quantum efficiency [30].…”

Section: Introductionmentioning

confidence: 99%

Preparation of ZnO Nanosheet Array and Research on ZnO/PANI/ZnO Ultraviolet Photodetector

Zhang,

Feng,

et al. 2023

Polymers

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High-performance ultraviolet photodetectors have important scientific research significance and practical application value, which has been the focus of researchers. In this work, we have constructed a highly photosensitive UV photodetector with a unique “sandwich” structure, which was mainly composed of two layers of ZnO nanosheet arrays and one layer of polyaniline (PANI). The results showed that the UV current of ZnO/PANI devices was 100 times higher than that of pure ZnO devices under the same UV irradiation time. At a 365 nm wavelength, the device had excellent photocurrent responsiveness and photoconductivity. This high performance was attributed to the large specific surface area of ZnO nanosheets and the p-n junction formed between P-type PANI nano-porous film and N-type ZnO nanosheets. This provides a solid theoretical basis for the application of ZnO nanosheets in ultraviolet detection, and possesses significance for the development of ultraviolet photodetectors.

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Regulation and prediction of defect-related properties in ZnO nanosheets: synthesis, morphological and structural parameters, DFT study and QSPR modelling

Cited by 21 publications

References 152 publications

Zinc Oxide and Magnesium-Doped Zinc Oxide Nanoparticles Ameliorate Murine Chronic Toxoplasmosis

Zinc Oxide and Magnesium-Doped Zinc Oxide Nanoparticles Ameliorate Murine Chronic Toxoplasmosis

Enhanced Anticorrosion Properties and Mechanism of Co/N Codoped Modified ZnO Dilute Magnetic Solid Solutions

Preparation of ZnO Nanosheet Array and Research on ZnO/PANI/ZnO Ultraviolet Photodetector

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