China Petroleum Processing & Petrochemical Technology ›› 2021, Vol. 23 ›› Issue (3): 23-29.

• Scientific Research • Previous Articles     Next Articles

Controlling the Pore Structure and Photocatalytic Performance of the Flexible FeⅢ Metal-Organic Framework MIL-53(Fe) by Using Surfactants

Zhang Dan1,Yang Ping2,Zhang Youhua2,Duan Linhai2,Meng Xiuhong2,2   

  1. 1. 1. School of Chemical Engineering, Guangdong University of Petrochemical Technology
  • Received:2020-12-07 Revised:2021-03-26 Online:2021-09-30 Published:2021-09-27
  • Contact: Zhang Dan

Abstract: An approach for dominating the channel form of the flexible MIL-53(Fe) was developed by using a surfactantassisted modified method. The surfactant tetraethylammonium hydroxide (TEAOH) can control the channel form of MIL- 53(Fe) to be a “closed-pore” form, whereas the surfactant polyoxyethylene polyoxypropylene polyoxyethylene (P123) or polyvinyl alcohol (PVA) can dominate the channel form of MIL-53(Fe) for a “large-pore” form. The photocatalytic performance of MIL-53(Fe) with different channel forms was investigated through the degradation of rhodamine B (Rh B) in water under violet light irradiation. The results showed that MIL-53(Fe) with a “large-pore” form exhibited higher photocatalytic activity than that of MIL-53(Fe) with a “closed-pore” form. MIL-53(Fe) modified with PVA exhibit the best photocatalytic activity degraded almost 100% Rh B in 90 minutes.

Key words: MIL-53(Fe), surfactant, photocatalysis