<i>Polyalthia longifolia</i>-mediated green synthesis of zinc oxide nanoparticles: characterization, photocatalytic and antifungal activities

Raza, Azam; Malan, Pieter; Ahmad, Irfan; Khan, Amir; Haris, Mohammad; Zahid, Zainab; Jameel, Mohd.; Ahmad, Absar; Seth, Chandra Shekhar; Asseri, Tahani A. Y.; Hashem, Mohamed; Ahmad, Faheem

doi:10.1039/d4ra01035c

RSC Adv.

2024

DOI: 10.1039/d4ra01035c

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Polyalthia longifolia-mediated green synthesis of zinc oxide nanoparticles: characterization, photocatalytic and antifungal activities

Azam Raza,

Pieter Malan,

Irfan Ahmad

et al.

Abstract: The biological synthesis of zinc oxide nanoparticles (ZnO NPs) from plant extracts has emerged as a novel method for producing NPs with great scalability and biocompatibility.

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Cited by 3 publications

References 62 publications

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MXene decorated ZnO-tetrapod for efficient degradation of Methyl Orange, Methylene Blue, and Rhodamine B dyes

Jangra,

Raza,

Kumar

et al. 2025

Materials Science and Engineering: B

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MXene decorated ZnO-tetrapod for efficient degradation of Methyl Orange, Methylene Blue, and Rhodamine B dyes

Jangra,

Raza,

Kumar

et al. 2025

Materials Science and Engineering: B

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Exploring the physicochemical properties and antifungal activity of zinc oxide nanoparticles

Truong,

2024

Materials Technology

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Green-mediated sol-gel fabrication of CuO/ZnO nanoparticles from orange peel extract for environmental remediation: insights from x-ray diffraction analysis using various models

Ali,

Muneer,

Pirzada

et al. 2024

Phys. Scr.

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This study introduces an eco-friendly and simple approach for synthesizing zinc oxide (ZnO), copper oxide (CuO), and ZnO-CuO composite nanoparticles using orange peel extract, minimizing the use of harmful chemicals while enhancing their antibacterial and photocatalytic properties. The nanoparticles were annealed at 400°C for 2 hours in the air. Characterization was conducted using X-ray Diffraction (XRD), Dynamic Light Scattering, Fourier Transform Infrared Spectroscopy (FTIR), and UV-visible Spectroscopy. XRD revealed that ZnO and CuO nanoparticles crystallized in hexagonal wurtzite and monoclinic structures, respectively, with crystallite size and lattice strain analyzed through Williamson-Hall, Size-Strain Plot, Halder-Wagner, and Wagner-Aqua methods. FTIR spectra confirmed the presence of Zn-O and CuO bonds, verifying successful synthesis. The optical bandgaps measured were 3.07 eV for ZnO, 2.702 eV for CuO, and 1.842 eV for the ZnO-CuO nanocomposite. Antimicrobial efficacy, assessed via the disc diffusion method, showed the ZnO-CuO composite exhibited enhanced antibacterial activity against both gram-positive and gram-negative strains compared to individual ZnO and CuO. Photocatalytic experiments demonstrated that under sunlight, the ZnO-CuO nanocomposite achieved 78% degradation of 10 ppm methylene blue within 90 minutes, outperforming individual ZnO (55%) and CuO (38%). These results highlight the ZnO-CuO composite's potential for effective dye degradation and environmental remediation applications.

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Polyalthia longifolia-mediated green synthesis of zinc oxide nanoparticles: characterization, photocatalytic and antifungal activities

Abstract: The biological synthesis of zinc oxide nanoparticles (ZnO NPs) from plant extracts has emerged as a novel method for producing NPs with great scalability and biocompatibility.

Cited by 3 publications

References 62 publications

MXene decorated ZnO-tetrapod for efficient degradation of Methyl Orange, Methylene Blue, and Rhodamine B dyes

MXene decorated ZnO-tetrapod for efficient degradation of Methyl Orange, Methylene Blue, and Rhodamine B dyes

Exploring the physicochemical properties and antifungal activity of zinc oxide nanoparticles

Green-mediated sol-gel fabrication of CuO/ZnO nanoparticles from orange peel extract for environmental remediation: insights from x-ray diffraction analysis using various models

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