Solar-driven Pt free hydrogen production and successive degradation of sulfasalazine using CuO/ZnO binary nanocomposites: Reaction kinetics and determination of reaction parameters using response surface methodology

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2024, Номер 165, С. 105789 - 105789

Опубликована: Окт. 5, 2024

Язык: Английский

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Green synthesis of ZnO nanoparticles using Justicia adhatoda for photocatalytic degradation of malachite green and reduction of 4-nitrophenol

RSC Advances, Год журнала: 2025, Номер 15(4), С. 2958 - 2980

Опубликована: Янв. 1, 2025

Achieving the smallest crystallite/particle size of zinc oxide nanoparticles (ZnO NPs) reported to date, measuring 5.2/12.41 nm with Justicia adhatoda (J. adhatoda) leaf extract, this study introduces a facile green synthesis. Utilizing aqueous J. extract as both reducing and stabilizing agent, method leverages plant's rich phytochemical composition produce highly crystalline morphologically controlled ZnO NPs. This precise particle control highlights effectiveness synthesis process in morphological tuning. The synthesized NPs were thoroughly characterized using XRD, UV-vis spectroscopy, FTIR, FESEM, HRTEM, which collectively revealed superior crystallinity, morphology, unique surface properties conferred by bio-capping. photocatalytic performance these biogenic was evaluated for degradation two model pollutants: malachite (MG), synthetic dye, 4-nitrophenol (4-NP), toxic organic compound. exhibited exceptional efficiency, achieving 99.8% MG within 180 minutes demonstrating rapid reduction 4-NP 4-aminophenol reaction rate constant 0.245 min-1 under UV sunlight irradiation. Mechanistic studies attributed high reactive oxygen species (ROS) generation electron-hole pair interactions, supported improved charge separation area. work not only establishes potential adhatoda-mediated addressing persistent pollutants but also sets benchmark size-controlled By delivering scalable eco-friendly water remediation technologies, advances nanotechnology.

Язык: Английский

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Recent trends in the synthesis, characterization and commercial applications of zinc oxide nanoparticles- a review

Inorganica Chimica Acta, Год журнала: 2024, Номер 573, С. 122350 - 122350

Опубликована: Авг. 30, 2024

Язык: Английский

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Dysprosium doped SrCeO3 nanophosphors for advanced photochemical applications: Synthesis, characterization, photo-assisted dye degradation and latent fingerprint visualization

Materials Science in Semiconductor Processing, Год журнала: 2024, Номер 182, С. 108674 - 108674

Опубликована: Июль 6, 2024

Язык: Английский

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Graphitic Carbon Nitride/CeO2 Nanocomposite for Photocatalytic Degradation of Methyl Red

Water, Год журнала: 2025, Номер 17(2), С. 158 - 158

Опубликована: Янв. 9, 2025

Nanosized ceria (CeO2) and a graphitic carbon nitride-loaded (CeO2/GCN) nanocomposite were synthesized using straightforward efficient method characterized by XRD, FTIR, SEM, TEM, TGA, BET analyses. These techniques confirmed that CeO2 was effectively supported on the surface of GCN, with particle sizes CeO2/GCN composite in range 10–15 nm pore size 3.33 nm. The photocatalytic activity NPs degradation methyl red dye under sunlight radiation studied UV–visible spectroscopy. A noticeable shift compared to pure suggests reduction its band gap energy, calculated at 3.90 eV for 2.97 nanocomposite. This enhances process, achieving removal efficiency 99.92% within short irradiation time 40 min nanocomposite, 69.47% NPs. findings indicate nitride significantly properties

Язык: Английский

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Advancing Dye Degradation: Integrating Microbial Metabolism, Photocatalysis, and Nanotechnology for Eco-Friendly Solutions

Bacteria, Год журнала: 2025, Номер 4(1), С. 15 - 15

Опубликована: Март 7, 2025

Textile dyes pose a major environmental threat due to their toxicity, persistence in water bodies, and resistance conventional wastewater treatment. To address this, researchers have explored biological physicochemical degradation methods, focusing on microbial, photolytic, nanoparticle-mediated approaches, among others. Microbial depends fungi, bacteria, yeasts, algae, utilizing enzymatic pathways involving oxidoreductases like laccases, peroxidases, azoreductases breakdown or modify complex dye molecules. Photolytic employs hydroxyl radical generation electron-hole pair formation, while utilizes titanium dioxide (TiO2), zinc oxide (ZnO), silver (Ag) nanoparticles enhance removal. improve efficiency, microbial consortia been developed decolorization mineralization, offering cost-effective eco-friendly alternative methods. Photocatalytic degradation, particularly using TiO2, harnesses light energy for breakdown. Research advancements focus shifting TiO2 activation from UV visible through doping composite materials, optimizing surface area mesoporosity better adsorption. Nanoparticle-mediated approaches benefit high rapid adsorption, with ongoing improvements synthesis, functionalization, reusability, magnetic nanoparticle integration. These emerging technologies provide sustainable solutions degradation. The primary aim of this review is comprehensively evaluate synthesize current research the azo photolytic processes, nanotechnology-based approaches. also provides detailed information salient mechanistic aspects these efficiencies, advantages, challenges, potential applications industrial contexts.

Язык: Английский

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Biodegradable sodium alginate-based nanohybrid: Tuning reaction conditions for maximum efficiency in wastewater treatment

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 142522 - 142522

Опубликована: Март 1, 2025

Язык: Английский

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Synergistic catalytic degradation of crystal violet dye and ciprofloxacin drug using g-C3N4/CuO nanocomposites under visible light

Inorganic Chemistry Communications, Год журнала: 2024, Номер 169, С. 113113 - 113113

Опубликована: Сен. 6, 2024

Язык: Английский

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Bio-fabrication of multifunctional CuO-ZnO nanocomposites for improved biomedical and industrial wastewater purification by experimental and molecular docking computational investigation

Journal of Water Process Engineering, Год журнала: 2025, Номер 70, С. 106933 - 106933

Опубликована: Янв. 5, 2025

Язык: Английский

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Angular dependence of random laser emission by using ZnO-CuO heterostructure as scatterer and its applications in biocompatible imaging

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2025, Номер 330, С. 125727 - 125727

Опубликована: Янв. 9, 2025

Язык: Английский

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