FABRICATION AND CHARACTERIZATION OF SILVERTN DOXDE C0RE-SHIELL STRUCTURED NAN0C0MP0SITE IPARTICILES
سال انتشار: 1390
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 329
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شناسه ملی سند علمی:
UFGNSM03_206
تاریخ نمایه سازی: 10 تیر 1396
چکیده مقاله:
Core-shell structure nanoparticles with silver core and tin dioxide shell were synthesized via a facile soft-chemical process. Optical absorption spectra of tin dioxide deposited silver core nanoparticles, obtained by UV-Visible spectroscopy, showed distinct shifts, both in peak position and its intensity, compared with bare silver nanoparticles, which indicated that silver-tin dioxide core-shell nanoparticles appeared to be formed. The core-shell structure formation was characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). XRD pattern showed distinct major peaks corresponding to cubic silver and minor peaks due to tetragonal tin dioxide phases. TEM results, from which we could estimate the nanoparticles size as well as their shell thickness, demonstrated that thin tin dioxide shells encapsulated the silver core particles.
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نویسندگان
MED KOSRAW-NOUR
Nano Research Center, Department of Physics, Ferdowsi University of Mashhad, Azadi Square, Mashhad Khorasan-Razavi ۹۱۷۷۹۴۸۹۷۴, Iran
NASSER SHAHTAHMIASSEBI
Nano Research Center, Department of Physics, Ferdowsi University of Mashhad, Azadi Square, Mashhad Khorasan-Razavi ۹۱۷۷۹۴۸۹۷۴, Iran
EBRAHIM ATTARAN-KAKHIKI
Department of Physics, Ferdowsi University of Mashhad, Azadi Square, Mashhad Khorasan-Razavi ۹۱۷۷۹۴۸۹۷۴, Iran
GHOLAMHOSSEN ZOHURI
Department of Chemistry, Ferdowsi University of Mashhad, Azadi Square, Mashhad Khorasan-Razavi ۹۱۷۷۹۴۸۹۷۴, Iran