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

Lingrui Zhang; Li Zhao; Yating Tan; Xiaobo Gong; Meng Zhu; Yong Liu; Yucheng Liu

doi:10.1016/j.envres.2024.118264

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

Environ Res. 2024 May 1:248:118264. doi: 10.1016/j.envres.2024.118264. Epub 2024 Jan 23.

Authors

Lingrui Zhang¹, Li Zhao¹, Yating Tan¹, Xiaobo Gong², Meng Zhu³, Yong Liu⁴, Yucheng Liu⁵

Affiliations

¹ College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China.
² Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education of China, Sichuan Normal University, Chengdu, 610068, China; College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China; Sichuan Environmental Protection Key Laboratory of Persistent Pollutant Wastewater Treatment, Sichuan Normal University, Chengdu, Sichuan, 610068, China; Key Laboratory of Special Waste Water Treatment, Sichuan Province Higher Education System, Chengdu, Sichuan, 610068, China. Electronic address: gxb@sicnu.edu.cn.
³ Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education of China, Sichuan Normal University, Chengdu, 610068, China; College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China; Sichuan Environmental Protection Key Laboratory of Persistent Pollutant Wastewater Treatment, Sichuan Normal University, Chengdu, Sichuan, 610068, China. Electronic address: zhumengphd@163.com.
⁴ Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education of China, Sichuan Normal University, Chengdu, 610068, China; College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichuan, 610068, China; Sichuan Environmental Protection Key Laboratory of Persistent Pollutant Wastewater Treatment, Sichuan Normal University, Chengdu, Sichuan, 610068, China; Key Laboratory of Special Waste Water Treatment, Sichuan Province Higher Education System, Chengdu, Sichuan, 610068, China.
⁵ Research Institute of Industrial Hazardous Waste Disposal and Resource Utilization, Southwest Petroleum University, Chengdu, Sichuan, 610500, China.

PMID: 38266894
DOI: 10.1016/j.envres.2024.118264

Abstract

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.

Keywords: MXene composites; Oil/water separation; Ultra-high flux; Underwater superoleophobicity.

MeSH terms

Membranes
Nanoparticles*
Nitrites
Polyphenols*
Stainless Steel
Transition Elements*

Substances

MXene
Tannic Acid
Nitrites
Stainless Steel
Transition Elements
Polyphenols