Title
N-TiO2/g-C3N4/Up-conversion phosphor composites for the full-spectrum light-responsive deNO x photocatalysis
Author
Zhihuan Zhao, Xiao Zhang, Jimin Fan, Dongfeng Xue, Bing Zhang, Shu Yin
Year
2018
Journal
Journal of Materials Science
Abstract
The ternary composites consisted of nitrogen-doped titanium dioxide, carbon nitride and up-conversion phosphors (UP) were successfully prepared by a solvothermal method. The heterojunction could be formed when N-TiO2 and g-C3N4 were combined together. The composite of N-TiO2/g-C3N4@UP had excellent ultraviolet, visible and infrared light absorption, indicating the possibility for the utilization of full spectrum of solar light. When N-TiO2 was coupled with g-C3N4 and up-conversion phosphors to form a composite, the visible light and NIR light absorption of the samples increased. The ternary composite N-TiO2/g-C3N4@G-UP presented reasonable deNO x performance of about 8.0% under the irradiation of IR light of 980 nm. The intensification of the photocatalysis might be realized by utilizing up-conversion phosphors, which could convert low-energy NIR light into high-energy photons (visible light) and increase the efficient irradiation on the surface of photocatalyst.
Instrument
FP-8500
Keywords
Fluorescence, Photoluminescence, Up-conversion, Phosphors, Materials