Ag-Cu Nanoparticles Supported on N-Doped TiObegin{document}$_2$end{document} Nanowire Arrays for Efficient Photocatalytic CObegin{document}$_2$end{document} Reduction

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.