摘要
A one-pot, solvent-thermal process was used to create the ultrafine ZnFe2O4nanoparticles photocatalyst.During the solvent-thermal process, the in situ self-forming NaCl not only served as a "cage" to confine the ion diffusion, but also acted as a microreactor for nanocrystallite growth. An average particle size of ～10 nm and a high-specific surface area of～112.9 m2/g were observed for the ultrafine ZnFe2O4nanoparticles Owing to the synergistic effect of ultrafine particle size, the full utilization of the visible light region and high conduction band(CB) position, ultrafine ZnFe2O4photocatalyst displayed an efficient photocatalytic CO2reduction under visible light illumination. Besides, the ultrafine ZnFe2O4photocatalyst showed high production selectivity for CH3CHO and C2H5OH generation in aqueous CO2/NaHCO3solution. This work may provide a new idea for the synthesis of new high-efficiency photocatalysts.
A one-pot, solvent-thermal process was used to create the ultrafine ZnFe_2O_4 nanoparticles photocatalyst.During the solvent-thermal process, the in situ self-forming NaCl not only served as a "cage" to confine the ion diffusion, but also acted as a microreactor for nanocrystallite growth. An average particle size of ～10 nm and a high-specific surface area of～112.9 m^2/g were observed for the ultrafine ZnFe_2O_4 nanoparticles Owing to the synergistic effect of ultrafine particle size, the full utilization of the visible light region and high conduction band(CB) position, ultrafine ZnFe_2O_4 photocatalyst displayed an efficient photocatalytic CO_2 reduction under visible light illumination. Besides, the ultrafine ZnFe_2 O_4 photocatalyst showed high production selectivity for CH_3CHO and C_2H_5OH generation in aqueous CO_2/NaHCO_3 solution. This work may provide a new idea for the synthesis of new high-efficiency photocatalysts.
基金
supported by the National Natural Science Foundation of China(Grant Nos.51672283 and 51602316)
the Basic Science Innovation Program of Shenyang National Laboratory for Materials Science(Grant Nos.Y4N56R1161 and Y5N56F2161)
the Natural Science Foundation of Shandong Province,China(Grant No.ZR2017MEM017)
