کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1459001 | 989588 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Platinum/zinc oxide nanoparticles: Enhanced photocatalysts degrade malachite green dye under visible light conditions
ترجمه فارسی عنوان
نانوذرات اکسید پلاتین / روی: فوتوکاتالیستهای پیشرفته، رنگ سبز مالاتیت سبز را در شرایط نور مرئی تخریب می کنند
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Zinc oxide nanoparticles (ZnO) were prepared via a sol-gel method, and a photo-assisted deposition method was used to prepare platinum on zinc oxide nanoparticles (Pt/ZnO). Several techniques were used to characterize these enhanced photocatalysts: XRD, TEM, UV-vis spectra, PL spectra, XPS, and BET surface area analysis. As-prepared samples' photocatalytic performances were studied via degradation of malachite green dye under various visible-light-only irradiation scenarios. Results demonstrated the following: platinum (Pt) was well dispersed on and in ZnO's surfaces and pores; as such, Pt/ZnO had less surface area than pure ZnO due to pore blockage; however, advantages gained from enhanced electron-hole separation and decreased band gap width more than made up for this negative effect; moreover, Pt/ZnO prepared with 0.3Â wt% Pt exhibited the lowest band gap and the highest photocatalytic activity of the various samples with a solids loading of 0.8Â g/l; finally, such samples were recyclable, i.e., photocatalytic performance remained stable even after five uses.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 42, Issue 8, June 2016, Pages 9375-9381
Journal: Ceramics International - Volume 42, Issue 8, June 2016, Pages 9375-9381
نویسندگان
Reda M. Mohamed, David McKinney, Mohammad W. Kadi, Ibraheem. A. Mkhalid, Wolfgang Sigmund,