A novel Ag/BiOBr nanoplate catalyst with high photocatalytic activity in the decomposition of dyes

作者：Yu, Changlin^*; Fan, Caifeng; Meng, Xiangjie; Yang, Kai; Cao, Fangfang; Li, Xin

来源：Reaction Kinetics, Mechanisms and Catalysis, 2011, 103(1): 141-151.

DOI：10.1007/s11144-011-0291-6

• Semiconductors
• Nanomaterials
• Silver deposition
• Photocatalysis
• Visible light

A novel Ag/BiOBr composite catalyst has been synthesized by a solution combination with photodeposited method. The as-synthesized catalysts were characterized by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and UV-Vis diffuse reflectance spectra. The photocatalytic reaction tests in the degradation of the dyes of acid orange II, rhodamine B and methyl orange showed that the deposition of optimal amount of 1-2 wt% Ag could bring about a big increase in the activity under visible light irradiation. The high photocatalytic performance could be attributed to the strong visible light absorption and low recombination rate of the e(-)/h(+) pairs resulted in by the presence of metal silver nanoparticles.

• 出版日期2011-6
• 单位江西理工大学