Ag-Cu Nanoparticles Supported on N-Doped TiObegin{document}$_2$end{document} Nanowire Arrays for Efficient Photocatalytic CObegin{document}$_2$end{document} Reduction |
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Authors: | Xiao-nong Wang Jun Ma Yang-guang Hu Ran Long Yu-jie Xiong |
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Affiliation: | Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China |
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Abstract: | Photocatalytic reduction of CObegin{document}$_2$end{document} into various types of fuels has attracted great interest, and serves as a potential solution to addressing current global warming and energy challenges. In this work, Ag-Cu nanoparticles are densely supported on N-doped TiObegin{document}$_2$end{document} nanowire through a straightforward nanofabrication approach. The range of light absorption by N-doped TiObegin{document}$_2$end{document} can be tuned to match the plasmonic band of Ag nanoparticles, which allows synergizing a resonant energy transfer process with the Schottky junction. Meanwhile, Cu nanoparticles can provide active sites for the reduction of CObegin{document}$_2$end{document} molecules. Remarkably, the performance of photocatalytic CObegin{document}$_2$end{document} reduction is improved to produce CHbegin{document}$_4$end{document} at a rate of 720 begin{document}$mu$end{document}molbegin{document}$cdot$end{document}gbegin{document}$^{-1}$end{document}begin{document}$cdot$end{document}hbegin{document}$^{-1}$end{document} under full-spectrum irradiation. |
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Keywords: | Photocatalytic CO M26" >begin{document}$_2$end{document} reduction Schottky junction Energy transfer TiO M27" >begin{document}$_2$end{document} Nanoparticles |
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