دانلود Enhanced photocatalytic activity of nanohybrids TiO2/CNTs materials

دانلود رایگان مقاله انگلیسی Enhanced photocatalytic activity of nanohybrids TiO2/CNTs materials
قیمت : 240,000 ریال
شناسه محصول : 2009516
نویسنده/ناشر/نام مجله : Materials Letters
سال انتشار: 2016
تعداد صفحات انگليسي : 5
نوع فایل های ضمیمه : Pdf+Word
حجم فایل : 2 Mb
کلمه عبور همه فایلها : www.daneshgahi.com
عنوان انگليسي : Enhanced photocatalytic activity of nanohybrids TiO2/CNTs materials

چکیده

Abstract

The nanohybrids TiO2/CNTs materials were synthesized by hydrolysis method. The results show that, compared to pure TiO2 or CNTs nanoparticles, nanohybrids TiO2/CNTs materials exhibit higher catalytic activities in degradation of methylene blue (MB), or methylene orange (MO). The highest degradation percentages, observed in samples with [TiO2]/[CNTs] ratio of 5/1, are around 33% for MO and 38% for MB, respectively. This can be attributed to the significantly enhanced visible light absorption of nanohybrids TiO2/CNTs due to the attachment of the TiO2 nanoparticles on the sidewall of CNTs. The density functional-theory (DFT) calculations indicate that the stability of nanohybrids TiO2/CNTs is due to the favored bonding state between nanocrytal TiO2 and CNTs at the interface. Hopefully, this work can help promote better understanding of the role of semiconductor-CNTs interface in increasing the efficiency of using the solar energy, by enhancing the photocatalytic performance in the visible region.

 

Keywords: TiO2 CNTs Nanohybrids Photocatalytic
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