کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7119684 | 1461429 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Absence of photocatalytic activity in the presence of the photoluminescence property of Mn-ZnS nanoparticles prepared by a facile wet chemical method at room temperature
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Absence of photocatalytic activity in the presence of the photoluminescence property of Mn-ZnS nanoparticles prepared by a facile wet chemical method at room temperature Absence of photocatalytic activity in the presence of the photoluminescence property of Mn-ZnS nanoparticles prepared by a facile wet chemical method at room temperature](/preview/png/7119684.png)
چکیده انگلیسی
Mn-doped ZnS nanoparticles (NPs) were prepared with dopants at various concentrations using a facile, simple and inexpensive wet chemical method at room temperature. The physicochemical properties of NPs were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet-visible absorption spectroscopy (UV-vis) and photoluminescence (PL). XRD analysis confirmed formation of ZnS with zinc blende structure and average crystallite size of about 2Â nm. TEM analysis revealed formation of hyperfine NPs with rather good uniformity. The room temperature photoluminescence (PL) spectrum of ZnS:Mn2+ exhibited an orange-red emission around 600Â nm. The maximum PL intensity was observed for 7.5% Mn doped ZnS. The photocatalytic performance of ZnS:Mn2+ was successfully demonstrated for degradation of three different model dyes (i.e. Rhodimine B (Rh. B), Bromocresol Green (BCG) and Bromochlorophenol Blue (BCB)). The results revealed that not only was there a remarkable difference in photocatalytic performance of Mn doped ZnS for all three different dyes at different dopant concentrations but also photocatalytic activity was decreased by Mn doping.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science in Semiconductor Processing - Volume 17, January 2014, Pages 1-6
Journal: Materials Science in Semiconductor Processing - Volume 17, January 2014, Pages 1-6
نویسندگان
Ali Akbar Ashkarran,