Synthesis and Photocatalylic Activity of SrCu2O2 for Water Decomposition to Hydrogen
P-type semiconductor SrCu2O2 was synthetized by semi-wet method. The precursor was analyzed by TGA and the calcined samples SrCu2O2 were characterized using XRD and SEM. N-P heterogeneous complex CdO/SrCu2O2 and WO3/SrCu2O2 were prepared using equal volume impregnation method. The photocatalylic activity of SrCu2O2, CdO/SrCu2O2, WO3/SrCu2O2, CdO and WO3 under ultraviolet light irradiation was investigated. The experimental results showed that SrCu2O2, CdO and WO3 did not exhibit any activity when they were used alone, but CdO/SrCu2O2 and WO3/SrCu2O2 were efficient photocatalysts for water decomposition to hydrogen. The conclusion could be drawn that the combination of N-type semiconductor and P-type semiconductor is very important for the photocatalysis.
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
G. Y. Wang et al., "Synthesis and Photocatalylic Activity of SrCu2O2 for Water Decomposition to Hydrogen", Advanced Materials Research, Vols. 239-242, pp. 2914-2918, 2011