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TiO 2 films are treated using a magnetron nitrogen-plasma apparatus that can generate high density plasma to realize nitrogen-doping. The films are treated for 5 min with nitrogen plasma at a discharge power from 30 to 100 W by a radio frequency generator operating at 13.56 MHz. The plasma treated films show visible light absorption in the range of around 400–500 nm. Light absorption above...
A V-doped titania–activated carbon composite film was prepared by a modified sol–gel method under mild condition. X-ray diffraction analysis revealed that the titania was a pure anatase phase. From scanning electron microscopy and N 2 adsorption–desorption measurements, we found that the composite film was porous since it formed a micro–nano structure. The photocatalytic activity of such film...
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