Tunable nanostructured stainless-steel coating for high-selective and high-permeable separation membranes for oil/water emulsions

Bibliographic Details
Title: Tunable nanostructured stainless-steel coating for high-selective and high-permeable separation membranes for oil/water emulsions
Authors: Yi-Jui Yeh, Jinn P. Chu, Jhen-De You, Ting-Hao Chang, Jr Rong Liou, Wei-Hung Chiang, Pakman Yiu, Chun-Hway Hsueh, Yu-Lin Shen, Kuo-Lun Tung
Source: npj Clean Water, Vol 6, Iss 1, Pp 1-9 (2023)
Publisher Information: Nature Portfolio, 2023.
Publication Year: 2023
Collection: LCC:Water supply for domestic and industrial purposes
Subject Terms: Water supply for domestic and industrial purposes, TD201-500
More Details: Abstract This paper demonstrates a stainless-steel (SS) nano-pyramid structure (diameter of ~20–50 nm and pore size of 156.1 nm) sputter-coated on mixed cellulose ester (MCE) membrane for the use in separation of oil/water emulsions. SS-coated MCE membrane presented a superhydrophilic, antifouling surface as well as underwater superoleophobicity. The coated membrane achieved excellent separation efficiency of >99% when applied to light oil-water emulsions with a range of viscosities and densities. The highest permeation flux measured was 1,555 L m−2 h−1 when applied to toluene-in-water emulsions. The membrane also presented outstanding recyclability, as evidenced by oil rejection rate retaining at >99% through four separation cycles. The coated membrane was also shown to work well under harsh conditions including salty water, extreme pH values (1–14), and high temperatures (60 °C). In addition, our fabrication route of SS-coated MCE employs low process temperature while being highly scalable, which is favorable for industrial-scale applications.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2059-7037
Relation: https://doaj.org/toc/2059-7037
DOI: 10.1038/s41545-023-00237-x
Access URL: https://doaj.org/article/86099bd18a184bb281d51630c5844f34
Accession Number: edsdoj.86099bd18a184bb281d51630c5844f34
Database: Directory of Open Access Journals
More Details
ISSN:20597037
DOI:10.1038/s41545-023-00237-x
Published in:npj Clean Water
Language:English