Physical properties of ZnO nanoparticles doped with Mn and Fe

Moussa, D.; Bakeer, D. El-Said; Awad, R.; Abdel‐Gaber, A. M.

doi:10.1088/1742-6596/869/1/012021

Cited by 9 publications

(5 citation statements)

References 13 publications

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“…As shown in Figure 17, the XRD patterns associated with various different ZnObased nanomaterials are displayed. Iron doping of ZnO reduces the grain size, resulting in a further increase in the grain size of glucose-terminated ZnO nanoparticles, which is consistent with previous reports [193]. Therefore, Fe-ZnO nanoparticles have good antibacterial activity.…”

Section: Transition Metals Doping Into Znosupporting

confidence: 92%

“…In addition, noble metals delay e bination by preventing photoexcited electrons from returning to the greatly enhances the photocatalytic antibacterial ability of the compos precious metals, silver is the most stable and suitable dopant with go based nanomaterials are displayed. Iron doping of ZnO reduces the in a further increase in the grain size of glucose-terminated ZnO nan consistent with previous reports [193]. Therefore, Fe-ZnO nanoparti bacterial activity.…”

Section: Noble Metals Doping Into Znosupporting

confidence: 90%

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Recent Progress in ZnO-Based Nanostructures for Photocatalytic Antimicrobial in Water Treatment: A Review

Xin

Wang

et al. 2022

Applied Sciences

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Advances in nanotechnology have led to the development of antimicrobial technology of nanomaterials. In recent years, photocatalytic antibacterial disinfection methods with ZnO-based nanomaterials have attracted extensive attention in the scientific community. In addition, recently widely and speedily spread viral microorganisms, such as COVID-19 and monkeypox virus, have aroused global concerns. Traditional methods of water purification and disinfection are inhibited due to the increased resistance of bacteria and viruses. Exploring new and effective antimicrobial materials and methods has important practical application value. This review is a comprehensive overview of recent progress in the following: (i) preparation methods of ZnO-based nanomaterials and comparison between methods; (ii) types of nanomaterials for photocatalytic antibacterials in water treatment; (iii) methods for studying the antimicrobial activities and (iv) mechanisms of ZnO-based antibacterials. Subsequently, the use of different doping strategies to enhance the photocatalytic antibacterial properties of ZnO-based nanomaterials is also emphatically discussed. Finally, future research and practical applications of ZnO-based nanomaterials for antibacterial activity are proposed.

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Section: Transition Metals Doping Into Znosupporting

confidence: 92%

Section: Noble Metals Doping Into Znosupporting

confidence: 90%

Recent Progress in ZnO-Based Nanostructures for Photocatalytic Antimicrobial in Water Treatment: A Review

Xin

Wang

et al. 2022

Applied Sciences

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“…However, small peaks corresponding to cubic ZnFe2O3 were observed in the XRD patterns of 10% and 15% Fe-doped ZnO nanoparticles prepared by the precipitation method. The formation of a secondary phase in zinc iron oxide structure-for nanoparticles above 5% Fe doping is due to the coexistence of Fe 3+ and Fe 2+ ions in our samples [40]. The obtained values of fit parameters from the analysis are in Tables 1, 2 Lattice parameters a and c along with the c/a ratio of nanoparticles prepared by precipitation method are displayed in Table 1.…”

Section: Rietveld Analysis Of Xrd Data On Fe-znomentioning

confidence: 89%

A Comparative Study of Structural, Optical and Electrical Properties of Fe-ZnO Nanoparticles Synthesized by Precipitation and Microwave Method for Photovoltaic Applications

Neupane¹,

Kaphle²,

Mcllroy³

et al. 2021

JEPT

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Iron doped ZnO (Fe-ZnO) nanoparticles were synthesized using two techniques that are economical as well as scalable to yield tunable properties of nanoparticles for facilitating down conversion in an absorbing layer of a solar cell. To evaluate the suitability of Fe-ZnO nanoparticles prepared by two deposition methods, we present a comparison of optical, electrical, and structural properties of Fe-ZnO using several experimental techniques. Structural properties were analyzed using transmission electron microscopy and x-ray diffraction spectroscopy (XRD) with Rietveld analysis for extracting information on compositional variations with Fe doping. The chemical composition of nanoparticles was analyzed through X-ray photoelectron spectroscopy (XPS). The optical properties of nanoparticles were studied using photoluminescence and UV-Vis absorption spectroscopy. In addition, fluorescence lifetime measurement was also performed to study the changes in an exponential decay of lifetimes. The electrical transport properties of Fe-ZnO were analyzed by impedance spectroscopy. Our studies indicate that ethanol as a solvent in a microwave method would produce smaller nanoparticles up to the size of 11 nm. In contrast, the precipitation method produces secondary phases of Fe2O3 beyond 5% doping. In addition, our studies show that the optical and electrical properties of resulting Fe-ZnO nanoparticles depend on the particle sizes and the synthesis techniques used. These new results provide insight into the role of solvents in fabricating Fe-ZnO nanoparticles by precipitation and microwave methods for photovoltaic and other applications.

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“…The ZnO‐NPs have been prepared, as reported previously. [ 32 ] A total of 25.0 g of ZnCl 2 was stirred in 100 ml of distilled water for 30 min. In addition, 4 M NaOH was added to the solution at room temperature to set the pH to 13, which is suitable for direct preparation of ZnO crystals.…”

Section: Experimental Studiesmentioning

confidence: 99%

“…A similar spectrum was generated by Moussa et al and Xin. [32][33][34] The TEM image presented in Figure 2a shows slightly agglomerated, randomly oriented three-dimensional network sheets of ZnO-NPs. In addition, the size distribution histogram displayed in Figure 2b shows that the maximum number of particles has an average size of 49.09 nm.…”

Section: Zno-nps Characterizationmentioning

confidence: 99%

Studies on coatings containing nano‐zinc oxide for steel protection

Shmait

Awad

Rahal

et al. 2020

Materials & Corrosion

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Zinc oxide (ZnO) nanoparticles (NPs) were synthesized using the coprecipitation method. The resulting NPs were characterized by X‐ray diffraction, transmission electron microscopy, and Fourier transform infrared spectroscopy. The surface morphology of the coatings has been characterized by scanning electron microscopy (SEM). SEM images show a uniform and homogeneous distribution of ZnO‐NPs in polyurethane (PU) coatings while aggregates appear in epoxy coatings. Using tensile stress–strain test, the effect of the addition of ZnO‐NPs on the mechanical properties of PU and epoxy coatings was examined. The addition of ZnO‐NPs has enhanced the Young's modulus and the tensile strength of PU and epoxy coatings. Through the open‐circuit potential and electrochemical impedance spectroscopy measurements, the anticorrosive properties of PU‐ or epoxy‐coated mild steel panels containing ZnO‐NPs have been investigated in 0.5 M NaCl solution. Nyquist impedance plots for PU and epoxy coatings in PU‐ or epoxy‐coated mild steel panels containing ZnO‐NPs were tested in the absence and presence of ZnO‐NPs have different responses. It has been shown that the dispersion of ZnO‐NPs significantly improves the anticorrosive performance of PU coatings. A PU coating containing 700 mg/kg ZnO‐NPs is recommended to achieve better mechanical properties and corrosion resistance.

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Physical properties of ZnO nanoparticles doped with Mn and Fe

Cited by 9 publications

References 13 publications

Recent Progress in ZnO-Based Nanostructures for Photocatalytic Antimicrobial in Water Treatment: A Review

Recent Progress in ZnO-Based Nanostructures for Photocatalytic Antimicrobial in Water Treatment: A Review

A Comparative Study of Structural, Optical and Electrical Properties of Fe-ZnO Nanoparticles Synthesized by Precipitation and Microwave Method for Photovoltaic Applications

Studies on coatings containing nano‐zinc oxide for steel protection

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