通过消除表面 Si-OH 基团提高 MFI 沸石膜分离乙醇/水的稳定性。
Enhanced Stability of MFI Zeolite Membranes for Separation of Ethanol/Water by Eliminating Surface Si-OH Groups.
机构信息
College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Synergetic Innovation Center for Advanced Materials, Nanjing Tech University , Nanjing 210009, P. R. China.
出版信息
ACS Appl Mater Interfaces. 2018 Jan 31;10(4):3175-3180. doi: 10.1021/acsami.7b17191. Epub 2018 Jan 18.
The practical application of pure-silica MFI zeolite membranes for ethanol/water separation by pervaporation is limited by its poor stability. Herein, we present the Si-OH eliminated MFI membranes by a simple dopamine modification, which can effectively prevent the chemical reaction between Si-OH groups and components, endowing the long-term pervaporation stability.
纯硅 MFI 沸石膜在渗透蒸发乙醇/水分离中的实际应用受到其较差稳定性的限制。在此，我们通过简单的多巴胺修饰提出了 Si-OH 消除的 MFI 膜，可以有效地阻止 Si-OH 基团与组分之间的化学反应，赋予其长期的渗透蒸发稳定性。
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