کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
606552 1454535 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Anatase/rutile bi-phasic titanium dioxide nanoparticles for photocatalytic applications enhanced by nitrogen doping and platinum nano-islands
ترجمه فارسی عنوان
نانوذرات دی اکسید تیتانیوم دو فازی آناتاز / روتیل برای کاربردهای فوتوکاتالیستی با افزایش دوپینگ نیتروژن و نانوذرات پلاتین
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
چکیده انگلیسی

Titanium dioxide (TiO2) bi-phasic powders with individual particles containing an anatase and rutile hetero-junction have been prepared using a sequential layer sol–gel deposition technique to soluble substrates. Sequential thin films of rutile and subsequently anatase TiO2 were deposited onto sodium chloride substrates yielding extremely fragile composite layered discs that fractured into “Janus-like” like powders on substrate dissolution. Nitrogen doped and platinum sputtered analogues were also prepared, and analysed for photocatalytic potential using the photodegradation of Rhodamine B, a model organic pollutant under UV and visible light irradiation. The materials were characterised using X-ray diffraction, X-ray photoelectron spectroscopy, energy dispersive X-ray spectroscopy, Raman spectroscopy and scanning electron microscopy. This paper sheds light on the relationship between anatase and rutile materials when in direct contact and demonstrates a robust method for the synthesis of bi-phasic nanoparticles, ostensibly of any two materials, for photocatalytic reactions or otherwise.

Bi phasic nanoparticles of TiO2 containing anatase rutile and doped/enhanced variants thereof.Figure optionsDownload high-quality image (73 K)Download as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 460, 15 December 2015, Pages 29–35
نویسندگان
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