当前位置: X-MOL 学术Mater. Chem. Phys. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
The Fe3O4@UiO-66-NH2/PVDF-co-CTFE mixed matrix membrane with enhanced anti-fouling and self-cleaning performances for effectively removing dyes by Fenton reaction
Materials Chemistry and Physics ( IF 4.6 ) Pub Date : 2023-03-20 , DOI: 10.1016/j.matchemphys.2023.127657
Xiaoyu Bai, Peng Liu, Xingtong Gao, Kai Liu, Aixiang Li, Zijian Lyu, Qiuhong Li

It is a major obstacle to further development of membrane technology that membrane fouling occurs. In this study, a novel Fe3O4@UiO-66-NH2/PVDF-co-CTFE mixed matrix membrane was successfully developed by mixing Fe3O4@UiO-66-NH2 nanoparticles (NPs) into PVDF-co-CTFE membrane through a simple non-solvent-induced phase separation (NIPS) method, and was used for degradation of organic wastewater. The results of the incorporated Fe3O4@UiO-66-NH2 NPs content on the morphology, pore structure and physicochemical structure of samples were investigated systematically. The results indicated that the Fe3O4@UiO-66-NH2 NPs addition in membrane matrix improved the permeability and significantly enhanced the anti-fouling performance. When 2 wt% Fe3O4@UiO-66-NH2 NPs was added, the mixed matrix membrane had excellent comprehensive performance, maintaining a high pure water flux of 226.8 L m−2 h−1, the BSA rejection rate reached 95.9%, and the flux recovery rate was 71.38%. Importantly, the membrane possessed high catalytic performance based on the Fenton reaction mechanism, and the removal rate of 20 mg L−1 MB solution (400 mL) was up to 99.04%, and showed excellent self-cleaning characteristics and long-term stability. In conclusion, this study provided a new idea for the development of Fenton catalytic membranes with excellent anti-fouling performance for wastewater treatment in complex environments.



中文翻译:

Fe3O4@UiO-66-NH2/PVDF-co-CTFE 混合基质膜具有增强的防污和自清洁性能,可通过芬顿反应有效去除染料

膜污染的发生是阻碍膜技术进一步发展的主要障碍。在这项研究中,通过将 Fe 3 O 4 @UiO-66-NH 2纳米粒子 (NPs)混合到 PVDF-co 中,成功开发了一种新型Fe 3 O 4 @UiO-66-NH 2 /PVDF-co-CTFE 混合基质膜-CTFE膜通过简单的非溶剂诱导相分离(NIPS)方法,用于有机废水的降解。系统研究了掺入的Fe 3 O 4 @UiO-66-NH 2 NPs含量对样品形貌、孔结构和理化结构的影响。结果表明,Fe 3O 4 @UiO-66-NH 2 NPs在膜基质中的添加提高了渗透性并显着增强了抗污性能。当添加2 wt% Fe 3 O 4 @UiO-66-NH 2 NPs时,混合基质膜具有优异的综合性能,保持了226.8 L m −2  h −1的高纯水通量,BSA截留率达到95.9 %,助焊剂回收率为71.38%。重要的是,该膜具有基于芬​​顿反应机制的高催化性能,去除率为 20 mg L −1MB 溶液 (400 mL) 高达 99.04%,并表现出出色的自清洁特性和长期稳定性。综上所述,该研究为开发具有优异抗污性能的Fenton催化膜用于复杂环境下的废水处理提供了新思路。

更新日期:2023-03-25
down
wechat
bug