Visible-Light-Driven Mentha spicata L.-Mediated Ag-Doped Bi₂Zr₂O₇ Nanocomposite for Enhanced Degradation of Organic Pollutants, Electrochemical Sensing, and Antibacterial Applications

ACS Environmental Au, Год журнала: 2024, Номер 4(2), С. 106 - 125

Опубликована: Янв. 9, 2024

Novel visible-light-driven Ag (

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Microstructural and optical properties of nanostructured Al/Ag co-doped ZnO thin films (AgxAl0.03ZnO0.97-x) by spray pyrolysis for optoelectronic applications

Physica B Condensed Matter, Год журнала: 2024, Номер 690, С. 416206 - 416206

Опубликована: Июнь 13, 2024

Язык: Английский

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Optimizing photocatalytic performance with Ag-doped ZnO nanoparticles: Synthesis and characterization

Heliyon, Год журнала: 2024, Номер 10(15), С. e35725 - e35725

Опубликована: Авг. 1, 2024

Язык: Английский

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Green Synthesis of ZnO Nanoparticles and Ag-Doped ZnO Nanocomposite Utilizing Sansevieria trifasciata for High-Performance Asymmetric Supercapacitors

ACS Omega, Год журнала: 2024, Номер unknown

Опубликована: Июль 16, 2024

This study provides a comprehensive analysis of biofabricated nanomaterial derived from Sansevieria trifasciata root extract, evaluating its structural, morphological, and optical properties for use in asymmetric supercapacitors. The comprises pristine ZnO nanoparticles (ZnO NPs) 1% Ag-doped nanocomposite (Ag@ZnO NC), synthesized through green-assisted sol–gel autocombustion method. Employing techniques such as X-ray diffraction, ultraviolet–visible near-infrared, scanning electron microscopy–energy-dispersive X-rayspectroscopy, Fourier transform infrared spectroscopy, Raman transmission microscopy, the confirms hexagonal wurtzite structure nanocrystallites with spherical shapes (30 nm). Optical reveals red shift band gap Ag doping, indicating improved conductivity. material shows potential applications solar cells, optoelectronics, spintronics, wastewater treatment, high-performance spectra validate phase identify intrinsic defects. Electrochemical tests demonstrate remarkable supercapacitive behavior 94% capacitance retention after 10,000 cycles, highlighting promise advanced

Язык: Английский

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Green Synthesis and Characterization of ZnO/α‐Fe₂O₃ Nanocomposites Using Hydrocotyle umbellata Leaf Extract and Evaluation of Their Antimicrobial Properties

Applied Organometallic Chemistry, Год журнала: 2025, Номер 39(4)

Опубликована: Март 13, 2025

ABSTRACT In this study, ZnO/α‐Fe 2 O 3 nanocomposites were synthesized via a green coprecipitation method using Hydrocotyle umbellata leaf extract as reducing and stabilizing agent. The synthesis involved Zn (NO₃)₂.6H₂O, ferric chloride, sodium hydroxide in various molar ratios of ZnO/α‐Fe₂O₃ (9:1, 8:2, 7:3), followed by calcination at 400°C. analyzed XRD, FTIR, UV‐Vis, SEM to determine their crystalline structure, functional groups, optical properties, surface morphology. XRD analysis confirmed the formation ZnO α‐Fe₂O₃ phases, whereas FTIR presence metal‐oxygen bonds phenolic compounds from plant extract. UV‐vis showed redshift absorption spectra, indicating reduction bandgap energy compared pure ZnO. results that composites exhibit excellent crystallinity, with an average crystal size approximately 39 nm, calculated Debye–Scherrer equation. antimicrobial activity was evaluated disk diffusion against Staphylococcus aureus , Escherichia coli Aspergillus niger . (8:2) formulation strongest antibacterial effect S. highlighting its potential for eco‐friendly applications.

Язык: Английский

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Enhancing the MoS₂/MoO₃/ZnS/Zn-Heterojunction catalyst's photocatalytic performance for water organic pollutants

Physica Scripta, Год журнала: 2023, Номер 98(8), С. 085917 - 085917

Опубликована: Июнь 29, 2023

Abstract Pure and lightly Zn-doped (MoS 2 ) 0.97 Zn 0.03 powdered samples have been prepared by a simple economic method, structurally analysed XRD, FT-IR, XPS, SEM& EDX, optically characterised using optical diffuse reflectance spectroscopy. XRD analysis of the heat-treated Zn: MoS product revealed formation different multi-heterojunction semiconducting , MoO 3 barely visible ZnS components beside metal-Zn element which were confirmed XPS& EDX. The crystallite size for decreased from 400.465 to 326.179 nm while constituents exhibit lower values 108.884 & 8.045 nm, respectively. Their porosity percentages ∼60%–67% are relatively high beneficial photocatalytic process. study showed indirect allowed band gap with energy 1.2 0.9 eV undoped doped, has performed at MB concentrations (10–20 ppm), catalyst amounts (0.04–0.1 g) under dark, UV, Vis irradiations assisted pH and/or ultrasonic piezoelectric potential. current enhanced result 99.3% efficiency performance figure merit ∼1045 min −1 achieved in 20 s capability reusability.

Язык: Английский

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Microwave-assisted synthesis and functionalization of nanocrystalline Molybdenum trioxide for enhanced antimicrobial and photocatalytic activity

Journal of the Indian Chemical Society, Год журнала: 2024, Номер 101(10), С. 101288 - 101288

Опубликована: Июль 30, 2024

Язык: Английский

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Effect of Ag doping on photocatalytic activity of ZnO-Al2O3 derived from LDH structure: Synthesis, characterization and experimental study

Applied Surface Science Advances, Год журнала: 2023, Номер 16, С. 100430 - 100430

Опубликована: Июнь 25, 2023

In this research, Ag-ZnO-Al2O3 heterostructure catalyst was derived from the calcination of Ag-doped layered double hydroxide (LDH) through a solid-state process. With aim entirely understanding structural and functional features, catalysts were analyzed by XRD, TGA/DTA, FTIR techniques. The photocatalytic performance evaluated measuring methyl orange (MO) photodegradation under UV irradiation. impact key parameters, namely, irradiation time, dose, initial pH solution, starting concentration MO, investigated discussed. characterization results exhibit well crystallized hexagonal LDH structure. experimental findings revealed approximately 95.8 % degradation yield after 210 min for Ag-ZnO-Al2O3. optimal conditions found to be 20 mg/L MO 4. whole, confirm that shows highest adsorption performances. After three recycling tests, photocatalyst maintained good stability high (90.7%). Finally, use as offer promising approach more organic compounds in environmental remediation.

Язык: Английский

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Dual functionality for hydrogen production and antibacterial activity in Zn-deficient Cu0.1Zn0.9O photocatalyst loaded with Ag nanoparticles of various sizes

Materials Today Advances, Год журнала: 2024, Номер 21, С. 100469 - 100469

Опубликована: Фев. 7, 2024

This study aims to find an eco-friendly dual material apply toward energy and antibacterial industry, identify their active sites. Cu0.1Zn0.9O nanoparticles (NPs) containing 10 % Cu ions into ZnO framework are synthesized using a facile hydrothermal method, 10, 20, 30, or 40 nm-sized Ag NPs loaded obtain [email protected] particles. From the time-dependent increase in photocurrent density, it is confirmed that has photoelectron harvesting ability. Unlike Cu0.1Zn0.9O, catalyst well splits water generate hydrogen. Particularly, with 30 nm achieves highest hydrogen production efficiency of 424.54 μmolg−1. proves sites generating during splitting NP surfaces grafted onto conduction band Contrastingly, performances against Bacillus manliponensis expressed all samples ZnO, [email protected]. The performance for NP-loaded sample slightly increases but not significant, indicating site exhibiting activity hole+ valence Cu0.1Zn0.9O. In end, this revealed advantageous photocatalytic does always express effective because properties may be same.

Язык: Английский

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Biogenic CdFe2O4 nanorods for sunlight-assisted photodegradation and cytotoxicity study

Research on Chemical Intermediates, Год журнала: 2024, Номер 50(5), С. 2267 - 2289

Опубликована: Апрель 6, 2024

Язык: Английский

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