X-ray peak profile analysis of zinc oxide nanoparticles formed by simple precipitation method

Pelicano, Christian Mark; Rapadas, Nick Joaquin; Magdaluyo, Eduardo R.

doi:10.1063/1.5010453

Cited by 22 publications

(5 citation statements)

References 12 publications

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“…respectively. These results are consistent with several studies in which biosynthesis of nanoparticles of zinc oxide molecules using plant extracts and fungi filters [26][27][28] .Produced zinc oxide nanoparticles were found to be irregular and polymorphic where the crystalline forms of these particles varied between rectangular, spherical, radial and cylindrical structures and the average size ranges between 28 -43 nm using Scanning Electron Microscope theses finding are acceptance with many studies [29][30][31] in which found ZnONPs have different shapes and sizes depending on method conditions.The stability examination of synthesized zinc oxide nanoparticles gave a value of −51.8 mv which indicator on the stability of ZnONPs. The zeta voltage analysis gave values of either greater than + 30 mV or smaller than -30 mV in which the adherent is considered constant [32][33][34] .The result of the present study shows that zinc oxide nanoparticles synthesised by P. aeruginosa culture filtrate has effective antibacterial activities on the test isolates.…”

Section: Discussionsupporting

confidence: 93%

EXTRACELLULAR SYNTHESIS OF ZINC OXIDE NANOPARTICLE USING Pseudomonas aeruginosa AND STUDY OF THE ANTIMICROBIAL AND ANTIBIOFILM ACTIVITIES

Al-Janabi¹,

Al-Kalifawi²

2020

ATMPH

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In this study, ZnONPs were biosynthesized from aqueous zinc sulphate solution through a simple and ecofriendly method using Pseudomonas aeruginosa culture filtrate, which acted as a reductant and stabilizer simultaneously. ZnONPs were characterized using UV-Vis spectroscopy, XRD, FTIR, SEM, AMF, and zeta-potential analysis.The surface plasmon resonance peaks in absorption spectra for ZnONPs colloidal solution showed an absorption peak at 378 nm in a UV-visible spectrum. The functional biomolecules such as carboxyl groups present in the Pseudomonas aeruginosa culture filtrateresponsible for the zinc oxide nanoparticles formation were characterized by FT-IR. The results of AFM show the tip-corrected measured the size of ZnONPs in the range of 30-80 nm. And the 3D view of the sample surface and height distribution around 50 nm.The XRD results suggested that the crystallization of the bio-organic phase occurs on the surface of the ZnONPs or vice versa. The broadening of peaks in the XRD patterns was attributed to particle size effects and the average particle size of ZnONPs can be calculated using the Debye -Scherrer equation, it was found about 20-40 nm. The ZnONPs were scanned using SEM. It reveals that a ZnONPs seems to be irregular and polymorphic where the crystalline forms of these particles varied between rectangular, spherical, radial and cylindrical structures and the average size ranges between 28-43 nm. Measuring the stability of the colloidal solution of ZnONPs gave a value of -51.8 Mv.The result shows the ability of ZnONPs to inhibit the growth and the biofilms of Pseudomonas aeruginosa isolates.We concluded the biosynthesized ZnO NPs which have antibacterial and antibiofilm activities and it can be used as an antibacterial therapeutic agent.

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Section: Discussionsupporting

confidence: 93%

EXTRACELLULAR SYNTHESIS OF ZINC OXIDE NANOPARTICLE USING Pseudomonas aeruginosa AND STUDY OF THE ANTIMICROBIAL AND ANTIBIOFILM ACTIVITIES

Al-Janabi¹,

Al-Kalifawi²

2020

ATMPH

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“…The peaks obtained at 2θ equal to 31.5, 34.2, 36.0, 47.2, 56.4, 62.7, 66.2, 67.7 and 68.9°indicate the reflection from the planes (001), (002), ( 101), ( 102), (110), ( 103), ( 200), ( 112) and (201), respectively, in full agreement with the standard data (Joint Committee on Powder Diffraction Standards JCPDS No. 99-0111) and a previously reported study [48]. Further, the sharp peaks obtained during XRD analysis are a clear indication of a highly crystalline structure.…”

Section: Resultssupporting

confidence: 62%

Performance evaluation of ruthenium complexes and organic sensitizers in ZnO-based dye-sensitized solar cells

Ayub,

Shahzad,

Javed

et al. 2024

Eng. Res. Express

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Ruthenium (Ru) dyes are a well-known player in the field of dye-sensitized solar cells (DSSCs) due to their high efficiency and excellent stability. Their properties and complexes have been studied for almost three decades. Although these sensitizers show better performances, their high cost makes these third-generation solar devices less economical. Organic dyes have recently been explored as an alternative to Ru-based dyes due to their easy and low-cost synthesis. A comparative performance evaluation of Ru complexes and dicyanoisophorone and rhodanine organic dyes in ZnO-based DSSCs is here reported. All the Ru complexes showed better performance in comparison to organic dyes except R-4. Among the Ru sensitizers, R-3 exhibited the highest efficiency of 1.21% followed by R-2, which is attributed to the presence of several anchoring groups such as carboxyl, nitro and amine. However, the presence of more nitrogen-based groups has drastically reduced the performance as observed for R-4, which is the least performing dye among the Ru-based ones. On the contrary, organic sensitizers S-06 and P-4 revealed to be less efficient with respect to R-3 owing to the presence of only one anchoring group and weak photoanode/dye interaction.

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“…The synthesis of ZnONPs onto this fabric revealed the formation of new peaks at 2θ = 32.21°, 35.09°, 37.05°, 47.61°, 57.33°, and 67.89°. These diffraction patterns correspond to (1 0 0), (0 0 2), (1 0 1), (1 0 2), (1 1 0), and (1 1 2) planes of hexagonal wurtzite ZnO structure, respectively [17,27]. Moreover, Ag diffraction patterns are maintained confirming the high crystalline nature of both particles when incorporated onto flax fabrics.…”

Section: Resultsmentioning

confidence: 86%

Multifunctional Flax Fibres Based on the Combined Effect of Silver and Zinc Oxide (Ag/ZnO) Nanostructures

Costa

Ferreira

et al. 2018

Nanomaterials

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Cellulosic fibre-based smart materials exhibiting multiple capabilities are getting tremendous attention due to their wide application areas. In this work, multifunctional flax fabrics with piezoresistive response were developed through the combined functionalization with silver (Ag) and zinc oxide (ZnO) nanoparticles (NPs). Biodegradable polyethylene glycol (PEG) was used to produce AgNPs, whereas ZnONPs were synthetized via a simple and low-cost method. Flax fabrics with and without NPs were characterized by Ground State Diffuse Reflectance (GSDR), Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive Spectroscopy (EDS), X-ray Diffraction (XRD), Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy (ATR-FTIR), and Thermogravimetric analysis (TGA). After creating a conductive surface by flax functionalization with AgNPs, ZnONPs were synthetized onto these fabrics. The developed fibrous systems exhibited piezoresistive response and the sensor sensitivity increased with the use of higher ZnO precursor concentrations (0.4 M). Functionalized fabrics exhibited excellent antibacterial activity against Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria, higher hydrophobicity (WCA changed from 00 to >1000), UV radiation resistance, and wash durability. Overall, this work provides new insights regarding the bifunctionalization of flax fabrics with Ag/ZnO nanostructures and brings new findings about the combined effect of both NPs for the development of piezoresistive textile sensors with multifunctional properties.

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X-ray peak profile analysis of zinc oxide nanoparticles formed by simple precipitation method

Cited by 22 publications

References 12 publications

EXTRACELLULAR SYNTHESIS OF ZINC OXIDE NANOPARTICLE USING Pseudomonas aeruginosa AND STUDY OF THE ANTIMICROBIAL AND ANTIBIOFILM ACTIVITIES

EXTRACELLULAR SYNTHESIS OF ZINC OXIDE NANOPARTICLE USING Pseudomonas aeruginosa AND STUDY OF THE ANTIMICROBIAL AND ANTIBIOFILM ACTIVITIES

Performance evaluation of ruthenium complexes and organic sensitizers in ZnO-based dye-sensitized solar cells

Multifunctional Flax Fibres Based on the Combined Effect of Silver and Zinc Oxide (Ag/ZnO) Nanostructures

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