We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Polydopamine Nanocluster Embedded Nanofibrous Membrane via Blow Spinning for Separation of Oil/Water Emulsions.
- Authors
Liu, Zhenglian; Xu, Ziling; Liu, Chaoqi; Zhao, Yajing; Xia, Qingyin; Fang, Minghao; Min, Xin; Huang, Zhaohui; Liu, Yan'gai; Wu, Xiaowen
- Abstract
Developing a porous separation membrane that can efficiently separate oil–water emulsions still represents a challenge. In this study, nanofiber membranes with polydopamine clusters polymerized and embedded on the surface were successfully constructed using a solution blow-spinning process. The hierarchical surface structure enhanced the selective wettability, superhydrophilicity in air (≈0°), and underwater oleophobicity (≈160.2°) of the membrane. This membrane can effectively separate oil–water emulsions, achieving an excellent permeation flux (1552 Lm−2 h−1) and high separation efficiency (~99.86%) while operating only under the force of gravity. When the external driving pressure was increased to 20 kPa, the separation efficiency hardly changed (99.81%). However, the permeation flux significantly increased to 5894 Lm−2 h−1. These results show that the as-prepared polydopamine nanocluster-embedded nanofiber membrane has an excellent potential for oily wastewater treatment applications.
- Subjects
EMULSIONS; MEMBRANE separation; WASTEWATER treatment; SURFACE structure; WATER storage
- Publication
Molecules, 2021, Vol 26, Issue 11, p3258
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules26113258