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

• 作者: Zhang Dan Yang Ping Zhang Youhua Duan Linhai Meng Xiuhong
• 来源期刊: 中国炼油与石油化工（英文版）
• 年，卷（期）: 2021,（3）
• 所属期刊栏目: Scientific Research
• 页码范围: 23-29
• 页数: 7页
• 语种: 英文

摘要

An approach for dominating the channel form of the flexible MIL-53(Fe) was developed by using a surfactant-assisted 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 for degrading almost 100％ Rh B in 90 minutes.