@inproceedings{e44d19659a884b92aa0f995989d8b7fb,
title = "Surface plasma etching of ZIF-8/PEBA mixed matrix membranes for enhanced ethanol permselective pervaporation",
abstract = "For various molecular separations, mixed matrix membranes (MMMs) shown exceptional stability and great performance. Given the density disparity between the fillers and the polymer solution, the polymer matrix tends to enrich on the upper surface domain of MMMs, impairing the membrane performance. In this study, the long-distance and dynamic low-temperature (LDDLT) plasma treatment was used to etch the asymmetric surface of ZIF-8/PEBA MMMs for improved ethanol permselective pervaporation. X-ray diffraction, scanning electron microscopy, and Fourier transform infrared spectroscopy were used to determine the crystal structure, morphology, and chemical composition of the membranes. The separation layer's thickness decreased and the amount of ZIF-8 on the separation layer raised after the LDDLT plasma etching. For separating 3 wt% ethanol aqueous solution at 40 oC, the etched ZIF-8/PEBA MMMs exhibited a good permeation flux of 1320 g·m-2·h-1 and a separation factor of 5.1. These results reveal that plasma etching will precisely adjust the surface of MMMs for better membrane performance.",
keywords = "Metal-organic frameworks, Mixed matrix membranes, Pervaporation, Plasma etching",
author = "Chan Pei and Heng Mao and Weimin Liu and Wenwen Xie and Zhiping Zhao",
note = "Publisher Copyright: {\textcopyright} 2023 SPIE.; 9th International Conference on Mechanical Engineering, Materials, and Automation Technology, MMEAT 2023 ; Conference date: 09-06-2023 Through 11-06-2023",
year = "2023",
doi = "10.1117/12.3007171",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Huajun Dong and Hailiang Yu",
booktitle = "Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology, MMEAT 2023",
address = "United States",
}