Ag-Cu Nanoparticles Supported on N-Doped TiO2 Nanowire Arrays for Efficient Photocatalytic CO2 Reduction

作者：Wang, Xiao-nong; Ma, Jun; Hu, Yang-guang; Long, Ran^*; Xiong, Yu-jie^*

来源：Chinese Journal of Chemical Physics, 2018, 31(5): 695-700.

DOI：10.1063/1674-0068/31/cjcp1804062

• Photocatalytic CO2
• reduction
• Schottky junction
• Energy transfer
• TiO2
• Nanoparticles

Photocatalytic reduction of CO2 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 TiO2 nanowire through a straightforward nanofabrication approach. The range of light absorption by N-doped TiO2 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 CO2 molecules. Remarkably, the performance of photocatalytic CO2 reduction is improved to produce CH4 at a rate of 720 mu mol.g(-1).h(-1) under full-spectrum irradiation.

• 出版日期2018-10
• 单位中国科学技术大学