INTERNATIONAL 8th USBİLİM HEALTH, ENGINEERING AND APPLIED SCIENCES CONGRESS
OPTICAL AND STRUCTURAL PROPERTIES OF PLASMONIC GOLD AND SILVER NANOPARTICLES PRODUCED BY PULSE LASER DEPOSITION FOR PHOTOCATALYSIS APPLICATIONS
Yayıncı:
Akademik Paylaşım Platformu Publishing House - APP Publications
Plasmonic gold (Au) and silver (Ag) nanoparticles (NPs) are highly valued in photocatalysis due to their unique optical properties, particularly their ability to support localized surface plasmon resonance (LSPR). This property enhances light absorption, creating opportunities to improve photocatalytic efficiency for environmental and energy applications. In this study, we investigate the optical and structural properties of Au and Ag NPs produced via pulsed laser deposition (PLD), a clean, versatile technique that allows for precise control over particle size, morphology, and distribution. Key deposition parameters, such as laser fluence, pulse duration, and deposition time, were systematically varied to optimize the production of Au and Ag NPs with tailored plasmonic properties.The structural and morphological characteristics of the NPs were characterized using scanning electron microscopy (SEM) confirming that particle size and distribution could be finely tuned through deposition parameters. UV-Vis spectroscopy was employed to study the optical properties, revealing distinct LSPR peaks for both Au and Ag NPs that indicate strong absorption in the visible region. These plasmonic features contribute to enhanced photocatalytic activity by facilitating electron transfer and promoting reactive oxygen species generation under light irradiation.The findings highlight that PLD-produced Au and Ag NPs exhibit promising structural and optical properties for photocatalytic applications, with potential scalability for environmental remediation and renewable energy processes. This study offers valuable insights into optimizing plasmonic NP synthesis for targeted photocatalytic performance, supporting advances in sustainable nanotechnology.
