Ultra-high flux mesh membranes coated with tannic acid-ZIF-8@MXene composites for efficient oil-water separation.

Autor: Zhang, Lingrui1 (AUTHOR), Zhao, Li1 (AUTHOR), Tan, Yating1 (AUTHOR), Gong, Xiaobo1,2,3,4 (AUTHOR) gxb@sicnu.edu.cn, Zhu, Meng1,2,3 (AUTHOR) zhumengphd@163.com, Liu, Yong1,2,3,4 (AUTHOR), Liu, Yucheng5 (AUTHOR)
Předmět:
Zdroj: Environmental Research. May2024, Vol. 248, pN.PAG-N.PAG. 1p.
Abstrakt: Oil/water separation has become a global concern due to the increasing discharge of multi-component harmful oily wastewater. Super wetting membranes have been shown to be an effective material for oil/water separation. Ultra-high flux stainless-steel meshes (SSM) with superhydrophilicity and underwater superoleophobicity were fabricated by tannic acid (TA) modified ZIF-8 nanoparticles (TZIF-8) and two-dimensional MXene materials for oil/water separation. The TZIF-8 increased the interlayer space of MXene, enhancing the flux permeation (69,093 L m−2h−1) and rejection of the composite membrane (TZIF-8@MXene/SSM). The TZIF-8@MXene/SSM membrane showed an underwater oil contact angle of 154.2°. The membrane maintained underwater superoleophobic after stability and durability tests, including various pH solutions, organic solvents, reusability, etc. In addition, the oil/water separation efficiency of TZIF-8@MXene/SSM membranes was higher than 99% after treatment in harsh conditions and recycling. The outstanding anti-fouling, stability, durability, and recyclability properties of TZIF-8@MXene/SSM membrane highlight the remarkable potential of membranes for complex oil/water separation process. • The coating method was used to obtain underwater superoleophobic mesh membrane. • The membrane showed excellent oil/water separation efficiency and flux. • Ultra-high flux was achieved by the incorporation of TZIF-8 into MXene interlayer. • Anti-Fouling, stability, durability, and recyclability properties acquired. [ABSTRACT FROM AUTHOR]
Databáze: GreenFILE