One-dimensional Z-scheme TiO2/WO3 composite nanofibres for enhanced photocatalytic activity of hydrogen production Online publication date: Mon, 07-Jan-2019
by Dongyang Wan; Peng Zhang; Jiangtao Zhao; Junhua Hu; Guosheng Shao
International Journal of Nanomanufacturing (IJNM), Vol. 15, No. 1/2, 2019
Abstract: TiO2/WO3 composite nanofibres were fabricated by electrospinning and calcine. The as-prepared composite nanofibes were characterised by scanning electron microscopy, energy dispersive spectroscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and UV-vis diffuse reflectance spectroscopy, respectively. The results indicated that the TiO2/WO3 composite nanofibres were successfully fabricated, and the H2-generation of the as-fabricated TiO2/WO3 composite nanofibres was significantly enhanced comparing with pure TiO2 nanofibres. The enhanced photocatalytic activities were mainly due to the addition of WO3, which acted as a 'hole collector' leading to effective charge transfer. More importantly, the improvement of photocatalytic activity of TiO2/WO3 composite nanofibres was proved by photocurrent and electrochemical impedance spectroscopy.
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