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One‐Pot Synthesis of Nitrogen‐doped TiO 2 Nanowires with Enhanced Photocurrent Generation
Author(s) -
Yen YinCheng,
Ou Sheng,
Lin KuanJiuh
Publication year - 2017
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201700226
Subject(s) - photocurrent , fourier transform infrared spectroscopy , raman spectroscopy , chemistry , triethylamine , nanowire , scanning electron microscope , spectroscopy , doping , field emission microscopy , band gap , analytical chemistry (journal) , chemical engineering , nanotechnology , materials science , diffraction , optoelectronics , optics , organic chemistry , physics , quantum mechanics , engineering , composite material
A nitrogen‐doped TiO 2 (N‐TiO 2 ) nanowire film was synthesized via a one‐pot hydrothermal method using triethylamine as nitrogen source. The effect of the concentration of the triethylamine on the films was evaluated. In addition, the N‐TiO 2 nanowires were characterized using field‐emission scanning electron microscopy (FE‐SEM), X‐ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and ultraviolet–visible spectroscopy. A 3.2× enhancement of the photocurrent for N‐TiO 2 (0.6) was achieved over the as‐prepared TiO 2 nanowire, under AM1.5G solar illumination. This was due to nitrogen doping, which could narrow the bandgap of titania to extend the adsorption of the catalyst to the visible light region.