Optical, structural and morphological properties of ZnO and Fe+3 doped ZnO-NPs prepared by Foeniculum vulgare extract as capping agent for optoelectronic applications

Alnehia, Adnan; Al-Hammadi, A. H.; Al-Sharabi, Annas; Alnahari, Hisham

doi:10.1016/j.inoche.2022.109699

Cited by 22 publications

(22 citation statements)

References 42 publications

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“…ZnO-NPs prepared using plant extracts have shown favored optical and biological properties compared with those from conventional methods of synthesis [3,5,[9][10][11]. In addition, biosynthesis of such metal-oxide NPs is one advantageous method, due to the wide concern of pollution, principally because the concept of environmental protection is now deeply rooted in the expectations of the population [8,12].…”

Section: Introductionmentioning

confidence: 99%

Pomegranate Peel Extract-Mediated Green Synthesis of ZnO-NPs: Extract Concentration-Dependent Structure, Optical, and Antibacterial Activity

Alnehia

Al-Odayni

Al-Sharabi

et al. 2022

Journal of Chemistry

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Plant-based nanoparticles (NPs) have many advantages over physical and chemical methods and featured with several medicinal and biological applications. In this study, zinc oxide NPs (ZnO-NPs) were synthesized using pomegranate peel aqueous extract, under mild and ecofriendly conditions. The ZnO-NPs structure, morphology, and optical properties were investigated using X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared (FTIR), and ultraviolet-visible (UV-Vis). Antibacterial activity against Gram-positive and Gram-negative strains were evaluated using the disk diffusion method. The effect of extract concentration (20, 30, and 40 mL) on the final properties of NPs, as well as the NPs concentration used for antibacterial test (50, 100, and 200 mg/mL), were also studied. The results indicate a hexagonal structure with particle size increases as extract concentration increase (D = 18.53, 29.88, and 30.34 nm), while the optical bandgap was decreased (Eg = 2.87, 2.80, and 1.92 eV). The antibacterial activity of ZnO-NPs indicated high efficiency, similar or even higher than that of the control azithromycin, more against S. aureus, increased with NPs concentration, and preferred when NPs prepared from high extract concentration. Such promising physicochemical properties support the usefulness and efficacy of the reported bio-route for production of ZnO-NPs and may encourage its application for large-scale production.

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Section: Introductionmentioning

confidence: 99%

Pomegranate Peel Extract-Mediated Green Synthesis of ZnO-NPs: Extract Concentration-Dependent Structure, Optical, and Antibacterial Activity

Alnehia

Al-Odayni

Al-Sharabi

et al. 2022

Journal of Chemistry

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“…To inspect the purity and crystal nature of the biogenic ZnS particles, XRD analysis was performed, and the data obtained were depicted in Figure 3, compared with the standard spectra (JCPDS card no: 05-0566), and tabulated for the corresponding structural and geometry parameters in Tables 1 and 2. The results indicate cubic crystalline structure and, according to Scherrer's formula [34,40] computed in MDI Jade6 software, the average crystallite size (D ave ) was 2.33 nm. Additionally, the lattice parameters a, b, and c (5.357 Å), the unit cell volume (153.732 Å 3 ), space group (F43m), and density (3.9 g/cm 3 ) of synthesized sample were calculated following formula described elsewhere [40,41].…”

Section: Xrd Analysismentioning

confidence: 88%

“…Hemolytic activity of the synthesized ZnS NPs was evaluated against human erythrocytes over a concentration range of 3.12-100 μg/mL. The assay was carried out as previously described [2,34] with few modifications. Briefly, 5 mL of blood was taken from a healthy male volunteer (25 years old, B-positive blood group) after the provision of informed consent.…”

Section: Biological Studiesmentioning

confidence: 99%

Garlic Extract-Mediated Synthesis of ZnS Nanoparticles: Structural, Optical, Antibacterial, and Hemolysis Studies

Alnehia

Al-Odayni

Al-Hammadi

et al. 2023

Journal of Nanomaterials

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The green synthesis of zinc sulfide nanoparticles (ZnS NPs)-mediated plant extract is gaining importance because of its simplicity, cost-effectiveness, and ecofriendly nature. In this work, ZnS NPs were synthesized using garlic extract as NPs facilitating agent, characterized by Fourier transform infrared, X-ray diffraction, scanning electron microscope, and UV–visible, then their antibacterial and hemocompatibility were assayed. Analysis revealed a cubic phase, 2.33 nm crystallite size, and a 3.75 eV optical bandgap. Bioactivity test against Staphylococcus aureus and Escherichia coli indicated dose-dependent potency closer to that of azithromycin standard drug and more efficient on S. aureus (Gram-positive) than E. coli (Gram-negative) bacteria. Biocompatibility test in terms of erythrocyte hemolysis, in reference to normal saline and water as minimal and maximal controls, confirmed nontoxic substance up to 100 μg/mL as the highest examined concentration and at which a lysis of 2.9% was detected. Therefore, it could be concluded that this biogenic method is effective in producing ZnS NPs with desirable properties for potential biomedical applications.

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“…As a result, as compared to undoped ZnO, Fe-ZnO nanoparticles synthesized with the use of hibiscus rosasinensis leaves exhibited a smaller band gap. [109,110] This promotes charge carrier movement and separation for enhanced sunlight photocatalytic activity. Fe-ZnO nanoparticles on exposure to sunlight form a substantial number of e − -h + pairs, facilitating the generation of reactive oxygenated species that leads to microplastic degradation (Figure 6b).…”

Section: Zno Nanostructuresmentioning

confidence: 99%

Metal Oxides‐Based Nano/Microstructures for Photodegradation of Microplastics

Kumar¹

2023

Advanced Sustainable Systems

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The ubiquitous presence of microplastics in the environment has raised serious environmental and health concerns. These tiny plastic particles can enter the food chain, posing a significant threat to human health. Researchers worldwide have focused their efforts on developing strategies to mitigate microplastic pollution. This review focuses on the potential of nano/microstructured metal oxide semiconductors as effective photocatalysts for microplastic degradation. The review is divided into two sections: static metal oxides and dynamic micromachines based on metal oxides. The modifications made to nano/microstructured metal oxides such as TiO2, ZnO, bismuth oxyhalides (BiOX), NiO, Cu2O/CuO, perovskite‐like Bi2WO6, Fe3O4, etc., to enhance their degradation efficiency are thoroughly discussed and reviewed. Additionally, the photocatalytic pathways for the conversion of microplastics into C2 fuel and other value‐added products are also elaborated. The current developments in the realm of dynamic, self‐propelled, and controlled micromotors for the photodegradation of microplastics are also highlighted. The review concludes by proposing future perspectives and challenges to facilitate the remediation of microplastics in water and wastewater systems in a more effective, scalable, and environmentally friendly manner. Overall, the review emphasizes the potential of photocatalysis using nano/microstructured metal oxide semiconductors as an eco‐friendly and promising approach for microplastic degradation.

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Optical, structural and morphological properties of ZnO and Fe+3 doped ZnO-NPs prepared by Foeniculum vulgare extract as capping agent for optoelectronic applications

Cited by 22 publications

References 42 publications

Pomegranate Peel Extract-Mediated Green Synthesis of ZnO-NPs: Extract Concentration-Dependent Structure, Optical, and Antibacterial Activity

Pomegranate Peel Extract-Mediated Green Synthesis of ZnO-NPs: Extract Concentration-Dependent Structure, Optical, and Antibacterial Activity

Garlic Extract-Mediated Synthesis of ZnS Nanoparticles: Structural, Optical, Antibacterial, and Hemolysis Studies

Metal Oxides‐Based Nano/Microstructures for Photodegradation of Microplastics

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