کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7707520 1497317 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhanced photocatalytic hydrogen production activity of noble metal free MWCNT-TiO2 nanocomposites
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Enhanced photocatalytic hydrogen production activity of noble metal free MWCNT-TiO2 nanocomposites
چکیده انگلیسی
Nanocomposite photocatalysts, MWCNT-TiO2 were prepared by hydrothermal method. The photocatalysts were characterized by X-ray diffraction, Transmission electron microscopy (TEM), Raman spectroscopy, UV-Visible diffuse reflectance spectroscopy and photoluminescence (PL) spectroscopy to understand the crystal structure, morphology, and optical properties. The catalyst synthesis parameters such as calcination temperature and loading of MWCNTs were optimized for better hydrogen (H2) production in 5 vol% glycerol aqueous solution under UV-visible light irradiation. Among the prepared nanocomposites, 0.1 wt% CNT loaded TiO2 calcined at 450 °C for 2 h showed the highest H2 production rate of 8.8 mmol g−1 h−1. This higher H2 production rate obtained can be ascribed to effective utilization of the photo generated electrons and holes for redox reactions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 8, 22 February 2018, Pages 4036-4043
نویسندگان
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