Pulsed laser-induced generation of gold-titania core-shell nanostructures: Tunable morphology and optical characteristics

Materials Chemistry and Physics, Год журнала: 2025, Номер unknown, С. 130503 - 130503

Опубликована: Фев. 1, 2025

Язык: Английский

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Eco-Friendly Production of Leaf Extract-Mediated Silver Nanoparticles: Surface Structure and Optical Characteristics

Journal of Physics Conference Series, Год журнала: 2025, Номер 2974(1), С. 012034 - 012034

Опубликована: Март 1, 2025

Abstract Several advanced methods have been utilized to develop high quality and innovative nanomaterials for applications in nanoscience nanotechnology. Among these, the green synthesising of silver nanoparticles (AgNPs) has become a favored approach synthesis shell structure unique features NPs due its cost effectiveness, easy controlled sustainability, compatibility, free toxic chemical contaminations. In this study, AgNPs were produced through reduction nitrate using freshly prepared chickpea leaf extract, which served as both reducing stabilizer agent. The bioactive compounds present extract efficiently reduce ions, resulting development AgNPs. several analytical techniques, such UV Vis spectroscopy, X ray diffraction (XRD), field emission scanning electron microscopy (FE SEM) used determine optical, structural, surface properties synthesized extract. absorption spectrum exhibited distinct Plasmon resonance (SPR) peak near 401 nm with an energy bandgap 2.28 eV. XRD analysis indicated patterns corresponding cubic crystal average crystallite size 25.3 nm. topography FESEM results revealed uniform nearly spherical particle shape approximately 25 Therefore, significant potential various photonic biosensor applications.

Язык: Английский

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Generation of Titanium Dioxide-Graphene Oxide Nanoparticles via Laser Ablation

Journal of Physics Conference Series, Год журнала: 2025, Номер 2974(1), С. 012027 - 012027

Опубликована: Март 1, 2025

Abstract The development of nanoparticles (NPs) with desired performance and controlled physiochemical characteristics for industrial wastewater treatment remains a significant challenge. toxicity, non-biodegradation potentially carcinogenic properties various chemicals in posed much environmental concerns. To overcome these issues, some novel titanium dioxide embedded graphene oxide (TiO 2 NPs GO) high-quality were synthesized at laser energies (50 to 250 mJ) under constant wavelength (1064 nm) pulse width (10 ns) via versatile, sustainable, powerful ablation liquid technique. influence varying on the physical, optical structural prepared TiO GO was determined. Characterisation methods like UV-Vis, Fluorescence (FL) Fourier-transform infrared (FTIR) spectroscopy utilized. absorption FL spectra exhibited prominent peak around 267 289 nm 465 nm, respectively. In addition, displayed excellent colour temperature (4692.9-5119.7 K), purity (21.6-28.2%) quantum yield (0.28-0.33). FTIR showed chemical functional groups stretching vibrations, indicating strong interaction between GO. findings revealed that adjustment energy had impact particle size, uniformity, electronic NPs. proposed having non-toxicity, enhanced surface functionalization may offer promising solution pollution control application.

Язык: Английский

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Enhanced fluorescence response and effective petroleum sensing performance of silver/copper nanocomposites

Materials Chemistry and Physics, Год журнала: 2024, Номер unknown, С. 130342 - 130342

Опубликована: Дек. 1, 2024

Язык: Английский

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