Visible light photocatalytic activity of MWCNT/TiO2 using the degradation of methylene blue
نویسندگان
چکیده مقاله:
Multi-walled carbon nanotubes (MWCNT)-doped TiO2 thin films were synthesized by the dip-coating method. The obtained products were characterized by SEM, EDX, XRD, and UV-vis absorption spectroscopy. The XRD patterns showed the presence of anatase phase. Absorption spectrum of MWCNT-doped TiO2 revealed a red shift in the optical absorption edge due to carbon doping. The photocatalytic properties were investigated using methylene blue (MB) degradation under visible light (400-700 nm). MWCNT/TiO2 thin films exhibited significantly higher photocatalytic activity as compared to undoped TiO2 thin films due to reduction of the rate of electron-hole recombination by doping carbon. Photocatalytic activity studies with different light source (white light and blue light) indicated a significantenhancement in photocatalytic removal under white light irradiation.
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عنوان ژورنال
دوره 2 شماره 2
صفحات 149- 156
تاریخ انتشار 2019-05-01
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