期刊
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷 30, 期 19, 页码 18191-18199出版社
SPRINGER
DOI: 10.1007/s10854-019-02173-4
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资金
- Science and Technology Key Project from Education Department of Henan Province [16A430003]
- Natural Science Project from Science and Technology Department of Henan Province [172102210231]
- Science Foundation of Henan University of Technology [2014YWQN04, 2013JCYJ07, 2014BS007]
The g-C3N4 was peeled off into nanosheets structure by ultrasonic, and then combined with TiO2 nanorods, the obtained composite was subjected to secondary high-temperature calcination to obtain a photocatalyst with smaller interfacial spacing, high photoelectron transfer rate and high photocatalytic performance. The structure was characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Raman spectrometry, Fourier transform infrared (FTIR) spectroscopy. It was found that g-C3N4 in the form of nanosheets was uniformly attached to the surface of TiO2 nanorods. UV-Vis diffuse reflection spectra (UV-Vis) and Photoluminescence (PL) spectra were obtained to confirm that full coverage of the ultraviolet region to the visible region was achieved and the recombination of photogenerated electron-hole pairs was effectively inhibited. Degradation experiments and hydrogen evolution experiments showed that the composites photocatalytic properties were enhanced. The degradation rate of rhodamine B (RhB) at 35 min is achieved 98.5%, hydrogen production rate as high as 150 umol/g/h. The catalyst has very good photocatalytic stability. The research in this paper has an important impact on the photocatalytic preparation of hydrogen.
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