کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1231742 1495276 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of neutron irradiation on CoS nanoparticles grown on AlMCM-41 matrix
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Study of neutron irradiation on CoS nanoparticles grown on AlMCM-41 matrix
چکیده انگلیسی

In this research, cobalt sulfide nanoparticles (NPs) were grown on AlMCM-41 matrix by using ion exchange method. The prepared sample was irradiated by thermalized neutron that emitted from Am–Be source. After that, X-ray diffraction (XRD), UV–vis spectroscopy, Fourier transform infrared (FTIR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used for irradiated and non-irradiated samples characterization. The results show the increase of nanoparticles size and aggregation under neutron irradiation. The TEM images show average size of CoS NPs before and after neutron radiation about 20 and 50 nm, respectively. The XRD patterns show that nanoparticles size is increased after neutron radiation. The DRS results show that Co2+ ions produced after neutron radiation, located in tetrahedral sites in AlMCM-41. The results indicate host materials have important role in decrease of radiation defects (RDs).

Figure optionsDownload as PowerPoint slideHighlights
► In the present investigation the AlMCM-41 was used as the host material, and CoS was selected as the guest molecule.
► The TEM images show average size of CoS NPs before and after neutron radiation about 20 and 50 nm, respectively.
► The results indicate host materials have important role in decrease of radiation defects (RDs).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 92, 15 June 2012, Pages 245–249
نویسندگان
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