Enhanced photocatalytic activity of green synthesized zinc oxide nanoparticles using low-cost plant extracts

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: July 19, 2024

Abstract Developing stable and highly efficient metal oxide photocatalysts remains a significant challenge in managing organic pollutants. In this study, zinc nanoparticles (ZnO NPs) were successfully synthesized using various plant extracts, pomegranate (P.M), beetroot roots (B.S), seder, along with chemical process. The produced ZnO NPs characterized X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), ultraviolet–visible (UV–Vis), Field Emission Scanning Electron Microscope (FESEM), High-Resolution Transmission Microscopy (HRTEM), Surface Area. For all prepared samples, the results indicated that composition of extract affects several characteristics particles, such as their photocatalytic properties, energy bandgap (E g ), particle size, ratio two intensity (0 0 2) (1 0) crystalline planes. size varies between 20 30 nm. To examine NPs' activity presence UV light, Methyl Orange (MO) was utilized. E by method 3.16 e. V, whereas it 2.84, 2.63, 2.59 for P.M, Seder, B.S respectively. most effective NPs, Beetroots, exhibited degradation efficiency 87 ± 0.5% kinetic rate constant 0.007 min −1 . planes also examined to determine specific orientation is linked production oxygen vacancies ZnO, which enhances efficiency. Furthermore, increase effectiveness can be attributed improved light absorption inter-band gap states charge transfer.

Language: Английский

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Green synthesis of ZnO nanocubes from Ceropegia omissa H. Huber extract for photocatalytic degradation of bisphenol An under visible light to mitigate water pollution

Environmental Research, Journal Year: 2024, Volume and Issue: 249, P. 118093 - 118093

Published: Jan. 17, 2024

Language: Английский

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Selective Colorimetric Detection of Pb(II) Ions by Using Green Synthesized Gold Nanoparticles with Orange Peel Extract

Chemosensors, Journal Year: 2024, Volume and Issue: 12(3), P. 33 - 33

Published: Feb. 24, 2024

Gold nanoparticles (AuNPs) were prepared by using a green approach that employed orange (citrus sinensis) peel water extract (OPE) as reducing agent. In this case, the organic compounds present in able to reduce Au(III) Au(0) and, at same time, act capping agent, functionalizing surface of AuNPs, stabilizing them solution. This “green” valorizes waste resourceful material and makes synthetic process AuNPs more environmentally sustainable, safe, economically feasible than traditional methods. The obtained gold (AuNPs@OPE) characterized FT–IR, DLS, SEM analysis, UV–Vis spectroscopy; latter showed characteristic plasmon resonance (SPR) band 530 nm, typical spherical nanoparticles. AuNPs@OPE then tested colorimetric sensors for heavy metals water, showing an affinity selectivity toward Pb2+. fact, presence Pb2+, added cation favors aggregation process, form clusters due interactions between Pb2+ carboxyl/hydroxyl groups on AuNPs@OPE, increasing size nanostructure. is accompanied change color from pink violet, with formation second, new SPR band, higher wavelength, relative aggregate formation. assay was different times addition ions LOD values 13.31 µM 0.05 after 15 min 90 min, respectively. proposed also analyzing drinking samples demonstrating reliability use real samples.

Language: Английский

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An Eco-friendly Approach to ZnO NP Synthesis Using Citrus reticulata Blanco Peel/Extract: Characterization and Antibacterial and Photocatalytic Activity

ACS Applied Bio Materials, Journal Year: 2024, Volume and Issue: 7(5), P. 3014 - 3032

Published: April 10, 2024

Emission of greenhouse gases and infectious diseases caused by improper agro-waste disposal has gained significant attention in recent years. To overcome these hurdles, can be valorized into valuable bioactive compounds that act as reducing or stabilizing agents the synthesis nanomaterials. Herein, we report a simple circular approach using Citrus reticulata Blanco (C. reticulata) waste (peel powder/aqueous extract) green capping/stabilizing Zn nitrate/acetate precursors to synthesize ZnO nanoparticles (NPs) with efficient antimicrobial photocatalytic activities. The obtained NPs crystallized hexagonal wurtzite structure differed clearly their morphology. UV–vis analysis showed characteristic broad absorption band between 330 414 nm belonging NPs. Fourier transform infrared (FTIR) spectroscopy exhibited Zn–O close 450 cm–1. gap values were range 2.84–3.14 eV depending on precursor agent used. crystallite size from size–strain plots measured XRD patterns was 7 26 nm, strain 16 4%. highly crystalline nature confirmed clear ring diffraction d-spacing observed lattice fringes. ZnNPeelMan_400 ZnNExtrMan good stability, zeta potential found around −20 mV, reduced particle aggregation. Photoluminescence revealed different defects oxygen vacancies (VO+ VO+2) zinc interstitial (Zni) sites. presence surface ZnAcExtrMan_400 ZnAcPeelMan_400 increased activity, specifically against Gram-negative bacteria Escherichia coli (E. coli) Salmonella enteritidis (S. enteritidis). minimal inhibitory concentration 0.156 mg/mL more effective Gram-positive Staphylococcus aureus aureus), revealing high influence shape activity. In addition, activity examined assessing degradation acid dye an aqueous solution under UV light irradiation. excellent (94%) within 90 min after irradiation compared other

Language: Английский

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Pharmaceutical orientation and applications of silver/zinc oxide nanoparticles developed from various fruit peel extracts: an emerging sustainable approach

Discover Sustainability, Journal Year: 2025, Volume and Issue: 6(1)

Published: Jan. 6, 2025

Nanotechnology has witnessed a paradigm shift with the emergence of sustainable and eco-friendly approach for synthesis Ag/ZnO nanoparticles utilizing various fruit peel extracts. The inherent bioactive compounds present in peels offer green alternative, aligning global efforts toward environmentally responsible nanotechnologies. This not only mitigates environmental impacts but also taps into cost-effective readily available resources nanoparticle synthesis. scope this study encompasses comprehensive exploration substantial utilization applications derived from diverse delves process, considering range sources to optimize characteristics. involves tailoring specific by fine-tuning parameters, diversifying sources, fostering interdisciplinary collaborations. emerging extracts represents transformative nanotechnology. controlled release zinc opens avenues agricultural applications, enhancing nutrient availability plants elevating crop yields. customization catalysis, sensing, optoelectronics highlights their versatility adaptability industrial applications. methodology, grounded principles, far-reaching implications. Embracing pathway ensures optimization more ethical trajectory nanotechnology, contributing well-being both industries environment.

Language: Английский

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Nano-interface enhanced electrochemical sensing of hazardous organochlorine pesticides and prospects with ZnO based nanomaterials

Talanta, Journal Year: 2025, Volume and Issue: 287, P. 127598 - 127598

Published: Jan. 16, 2025

Language: Английский

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Improvement of the optical, photocatalytic and antibacterial properties of ZnO semiconductor nanoparticles using different pepper aqueous extracts

Chemosphere, Journal Year: 2023, Volume and Issue: 339, P. 139577 - 139577

Published: July 24, 2023

Language: Английский

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Effect of optimisation variable and the role of plant extract in the synthesis of nanoparticles using plant-mediated synthesis approaches

Inorganic Chemistry Communications, Journal Year: 2023, Volume and Issue: 161, P. 111839 - 111839

Published: Dec. 3, 2023

Language: Английский

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Studying the properties of green synthesized silver oxide nanoparticles in the application of organic dye degradation under visible light

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Nov. 6, 2024

In present study the green synthesis of silver oxide nanoparticles has been effectively achieved using novel plant extract Phragmanthera Macrosolen. This method provides sustainable alternative for nanoparticle synthesis, demonstrating potential Macrosolen as a reducing and stabilizing agent in production Ag2O NPs. The synthesized were characterized their structural, morphological, optical properties, confirming successful formation applications various fields. effects different pH values annealing temperature samples on properties NPs formations, well photo-catalytic activities towards Toluidine Blue dye degradations, studied. Powder XRD reveals that crystallite natures long with crystalline size ranges from 25.85 to 35.90 nm. FIB-SEM HR-TEM images displayed spherical shapes. UV-vis spectroscopy belong direct-band gap 2.1–2.6 eV. FTIR- shown may be steadied via interfaces –OH C = O groups carbohydrate, flavonoid, tannin, phenolic acid existing P. macrosolen L. leaf. chemical states, electron-hole recombinations purity Ag confirmed through X-ray Photoelectron Spectroscopy (XPS) PL analysis respectively. Fascinatingly, at 12 high degradations TB dyes. dyes monitored spectro-photo-metrically wave-length 200–900 nm, efficiency (98.50%) half-life 9.5798 min kinetic rate constant 0.07234 min−1, was obtained after 45 reactions. From this study, it can concluded aqueous are promising remediation environmental pollution water treatment. light, reports address cost-effective, eco-friendly, ways.

Language: Английский

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Synergetic comparative study: Photocatalytic and biological investigations of green-synthesized metal oxide nanoparticles

Nano-Structures & Nano-Objects, Journal Year: 2024, Volume and Issue: 38, P. 101184 - 101184

Published: May 1, 2024

Language: Английский

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