سنتز و مشخصه‌یابی نانوذرات هسته– پوسته مس/ نقره سنتز شده به روش فرسایش لیزری با لیزر Nd:YAG نانوثانیه در استون

نوع مقاله : مقاله پژوهشی

نویسندگان

دانشگاه صنعتی مالک اشتر، مجتمع دانشگاهی مواد و فناوری‌های ساخت

چکیده

در این تحقیق نانوذرات هسته– پوسته مس/ نقره به روش فرسایش لیزری در مایع با استفاده از لیزر Nd:YAG نانوثانیه سنتز شدند. سنتز نانوذرات هسته – پوسته مس/ نقره با روش فرسایش لیزری در مایع به‌صورت تک‌مرحله‌ای با تنظیم پارامترهای فرایندی در انرژی 450 میلی ژول/ پالس، طول‌موج 1064 نانومتر، فرکانس 3 هرتز و سرعت روبش 6 میلی‌متر بر ثانیه در محیط استون انجام گرفت. مشخصه‌یابی نانوذرات سنتز شده با استفاده از آنالیزهای طیف‌سنجی نوری مرئی– فرابنفش (UV-Vis)، طیف‌سنجی جذب اتمی (AAS)، پراش نور دینامیکی (DLS)، میکروسکپ الکترونی روبشی گسیل میدانی (FESEM)، میکروسکپ الکترونی عبوری با قدرت تفکیک بالا (HRTEM) و پراش اشعه ایکس (XRD) انجام گرفت. بررسی‌ها تأیید کردند که نانوذرات CACS دارای اندازه نانومتری، مورفولوژی کروی و دارای ساختار هسته– پوسته مس / نقره خالص هستند. 

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Synthesis and Characterization of Copper/Silver Core-Shell Nanoparticles Synthesized by Laser Ablation Method Using a Nanosecond Nd:YAG Laser in Acetone

نویسندگان [English]

  • H. Naderi-Samani
  • R. Shoja Razavi
  • R. Mozaffarinia
Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Iran
چکیده [English]

In this research, Cu/Ag core-shell nanoparticles were synthesized by laser ablation in liquid using a nanosecond Nd:YAG laser. The synthesis of Cu/Ag core-shell nanoparticles by the laser ablation in liquid method was done in a single step by setting the process parameters at 450 mj/pulse energy, 1064 nm wavelength, 3 Hz frequency and 6 mm/s scanning speed in an acetone environment. Characterization of the synthesized nanoparticles using ultraviolet visible spectroscopy (UV-Vis), atomic absorption spectroscopy (AAS), dynamic light scattering (DLS), field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), and
X-ray diffraction (XRD) were performed. The investigations confirmed that CACS nanoparticles had nanometric size, spherical morphology, and core-shell structure of pure copper/silver.

کلیدواژه‌ها [English]

  • Core-shell nanoparticles
  • Copper/silver
  • Laser ablation
  • Colloidal solution
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