Sun Fei, Zheng Yaxin, Li Mengting, Chen Wanyu, Pan Tiandi, Rao Yunfei, Zhang Ying
Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou 310018, China.
College of Textile Science and Engineering (International institute of silk), Zhejiang Sci-Tech University, Hangzhou 310018, China.
Langmuir. 2025 Feb 4;41(4):2562-2571. doi: 10.1021/acs.langmuir.4c04311. Epub 2025 Jan 24.
The treatment of oily wastewater and oil/water mixtures has received more and more attention. In this study, a Zn-MOF (ZIF-8) decorated polyimide (PI) nanofiber membrane with triple self-cleaning performance was constructed, and the decoration of ZIF-8 on the PI membrane improved the hydrophilicity of the composite membrane, which further enhanced the underwater oil resistance, and the mechanical properties of the membranes improved significantly with the increase of in situ growth time. In addition, the inherent photocatalytic and antibacterial properties of ZIF-8 endowed the membranes with fantastic performance. When the in situ growth time was 24 h, the degradation efficiency for methylene blue was nearly 90% within 60 min under visible light. The ZIF-8@PI membrane has significant antibacterial effect against and . This triple self-cleaning is an important step forward in both the multifunctional application and sustainable development of materials.
含油废水及油/水混合物的处理越来越受到关注。在本研究中，构建了一种具有三重自清洁性能的Zn-MOF（ZIF-8）修饰聚酰亚胺（PI）纳米纤维膜，ZIF-8在PI膜上的修饰提高了复合膜的亲水性，进而增强了水下抗油性，并且膜的机械性能随着原位生长时间的增加而显著提高。此外，ZIF-8固有的光催化和抗菌性能赋予了该膜优异的性能。当原位生长时间为24 h时，在可见光下60 min内亚甲基蓝的降解效率接近90%。ZIF-8@PI膜对[具体菌种1]和[具体菌种2]具有显著的抗菌效果。这种三重自清洁在材料的多功能应用和可持续发展方面都是重要的进步。
