Synthesis of Copper-Indium Co-Doped Zinc
Seleno-Sulphide Photocatalyst and Its Performance of Photocatalytic Hydrogen Production
from Water
Xu Yunbo,Yan Wei,Fan Na,Wang Bin,Zhang Yaojun,Guo Liejin
(State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University,
Xi'an 710049, China)
Abstract: Copper-indium co-doped zinc seleno-sulphide semiconductor photocatalyst was
synthesized by chemical co-precipitation. The compound was characterized by X-ray powder
diffraction, ultraviolet visible diffuse reflectance spectrum,nitrogen sorption
analysis,X-ray fluorescence analysis and thermogravimetric analysis. Its performance of
photocatalytic hydrogen production from water was also studied. The results show that 2%
copper-indium co-doped catalyst, whose edge of light absorption is red-shifted to 700 nm,
has the best light absorption performance and the highest hydrogen evolution efficiency
with a quantum yield of 4.83% under ultraviolet light irradiation. In addition, the
photocatalyst is stable under ultraviolet light irradiation and the hydrogen evolution
performance does not decrease after 100h photoreaction.
Keywords: photocatalyst; production of hydrogen; zinc seleno-sulphide