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Abstract <p>This study has introduced a method for producing nanoparticles that are pure, stable, highly concentrated, and non-toxic in their shell/core structure. Au@Fe<sub>2</sub>O<sub>3</sub>NPs were synthesized by irradiating a Fe<sub>2</sub>O<sub>3</sub> plate submerged in previously-prepared suspensions of &#xa0;Au nanoparticles with a pulsed laser of 1064 nm wavelength. The laser energy used were 220, 420, 620, 820, and 1020 mJ. The UV-Vis spectrum analyzer has demonstrated that the absorption peak of the sample prepared with an energy of 1020 mJ is greater than that of the sample prepared with 220 mJ. This is attributed to the larger concentration of nanoparticles. The peaks stay consistently positioned between 300–400 nm. The structural characteristics of the nanoparticle were analyzed using X-Ray Diffraction (XRD). The analysis confirmed the presence of four modes of nano gold particles (220), (200), (111), and (311), as well as the presence of seven modes of nano iron particles (012), (104), (110), (006), (024), (116), and (214). This nanoparticle can be used in many applications, such as biomedical applications, catalysis, and environmental applications.</p>

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Optical and Structural Properties of Au@Fe2O3 Nanoparticles Synthesized by Nanosecond Laser Ablation in Liquid

  • 期刊论文

  • 发表日期：

    2025年5月13日

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  • Haneen Abass Alrubaie,
  • Raneen Salam,
  • Mayada A. Abed

摘要

Abstract

This study has introduced a method for producing nanoparticles that are pure, stable, highly concentrated, and non-toxic in their shell/core structure. Au@Fe2O3NPs were synthesized by irradiating a Fe2O3 plate submerged in previously-prepared suspensions of  Au nanoparticles with a pulsed laser of 1064 nm wavelength. The laser energy used were 220, 420, 620, 820, and 1020 mJ. The UV-Vis spectrum analyzer has demonstrated that the absorption peak of the sample prepared with an energy of 1020 mJ is greater than that of the sample prepared with 220 mJ. This is attributed to the larger concentration of nanoparticles. The peaks stay consistently positioned between 300–400 nm. The structural characteristics of the nanoparticle were analyzed using X-Ray Diffraction (XRD). The analysis confirmed the presence of four modes of nano gold particles (220), (200), (111), and (311), as well as the presence of seven modes of nano iron particles (012), (104), (110), (006), (024), (116), and (214). This nanoparticle can be used in many applications, such as biomedical applications, catalysis, and environmental applications.