Ag-Ag2CO3/Bi2MoO6 composites with enhanced visible-light-driven catalytic activity

作者：Zhang, Junlei; Ma, Zhen^*

来源：Journal of the Taiwan Institute of Chemical Engineers, 2018, 88: 121-129.

DOI：10.1016/j.jtice.2018.03.043

• Heterojunction
• Ag2CO3
• Bi2MoO6
• Visible-light-driven
• Photocatalysis

Novel Ag-Ag2CO3/Bi2MoO6 composites were obtained through in situ formation of Ag2CO3 rods/nanoparticles onto Bi2MoO6 nanosheets, followed by photoreduction. These composites were found to be much more active than Bi2MoO6 in photocatalytic degradation of rhodamine B (RhB) under visible-light irradiation. In particular, an Ag-Ag2CO3/Bi2MoO6 composite with a theoretical Ag2CO3/Bi2MoO6 mass ratio of similar to 27.5% exhibited the highest photocatalytic activity. It was also the most active in photocatalytic degradation of methyl blue (MB) and tetracycline hydrochloride (TC), due to the enhanced visible-light absorption and efficient separation of photogenerated carriers. The good reusability of Ag-Ag2CO3/Bi2MoO6 was verified by cycling degradation experiments. The dominant active species were found to be photogenerated holes (h(+)). A possible photocatalytic mechanism was proposed.

• 出版日期2018-7
• 单位复旦大学