The Preparation of Superhydrophobic Polylactic Acid Membrane with Adjustable Pore Size by Freeze Solidification Phase Separation Method for Oil–Water Separation

An environmentally friendly pore size-controlled, superhydrophobic polylactic acid (PLA) membrane was successfully prepared by a simpler freeze solidification phase separation method (FSPS) and solution impregnation, which has application prospects in the field of oil–water separation. The pore size...

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Autores principales: Zhang, Yan, Sun, Tianyi, Zhang, Dashuai, Sun, Shishu, Liu, Jinrui, Li, Bangsen, Shi, Zaifeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10384457/
https://www.ncbi.nlm.nih.gov/pubmed/37513463
http://dx.doi.org/10.3390/molecules28145590
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author Zhang, Yan
Sun, Tianyi
Zhang, Dashuai
Sun, Shishu
Liu, Jinrui
Li, Bangsen
Shi, Zaifeng
author_facet Zhang, Yan
Sun, Tianyi
Zhang, Dashuai
Sun, Shishu
Liu, Jinrui
Li, Bangsen
Shi, Zaifeng
author_sort Zhang, Yan
collection PubMed
description An environmentally friendly pore size-controlled, superhydrophobic polylactic acid (PLA) membrane was successfully prepared by a simpler freeze solidification phase separation method (FSPS) and solution impregnation, which has application prospects in the field of oil–water separation. The pore size and structure of the membrane were adjusted by different solvent ratios and solution impregnation ratios. The PLA-FSPS membrane after solution impregnation (S-PLA-FSPS) had the characteristics of uniform pore size, superhydrophobicity and super lipophilicity, its surface roughness Ra was 338 nm, and the contact angle to water was 151°. The S-PLA-FSPS membrane was used for the oil–water separation. The membrane oil flux reached 16,084 L·m(−2)·h(−1), and the water separation efficiency was 99.7%, which was much higher than that of other oil–water separation materials. In addition, the S-PLA-FSPS membrane could also be applied for the adsorption and removal of oil slicks and underwater heavy oil. The S-PLA-FSPS membrane has great application potential in the field of oil–water separation.
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spelling pubmed-103844572023-07-30 The Preparation of Superhydrophobic Polylactic Acid Membrane with Adjustable Pore Size by Freeze Solidification Phase Separation Method for Oil–Water Separation Zhang, Yan Sun, Tianyi Zhang, Dashuai Sun, Shishu Liu, Jinrui Li, Bangsen Shi, Zaifeng Molecules Article An environmentally friendly pore size-controlled, superhydrophobic polylactic acid (PLA) membrane was successfully prepared by a simpler freeze solidification phase separation method (FSPS) and solution impregnation, which has application prospects in the field of oil–water separation. The pore size and structure of the membrane were adjusted by different solvent ratios and solution impregnation ratios. The PLA-FSPS membrane after solution impregnation (S-PLA-FSPS) had the characteristics of uniform pore size, superhydrophobicity and super lipophilicity, its surface roughness Ra was 338 nm, and the contact angle to water was 151°. The S-PLA-FSPS membrane was used for the oil–water separation. The membrane oil flux reached 16,084 L·m(−2)·h(−1), and the water separation efficiency was 99.7%, which was much higher than that of other oil–water separation materials. In addition, the S-PLA-FSPS membrane could also be applied for the adsorption and removal of oil slicks and underwater heavy oil. The S-PLA-FSPS membrane has great application potential in the field of oil–water separation. MDPI 2023-07-22 /pmc/articles/PMC10384457/ /pubmed/37513463 http://dx.doi.org/10.3390/molecules28145590 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Yan
Sun, Tianyi
Zhang, Dashuai
Sun, Shishu
Liu, Jinrui
Li, Bangsen
Shi, Zaifeng
The Preparation of Superhydrophobic Polylactic Acid Membrane with Adjustable Pore Size by Freeze Solidification Phase Separation Method for Oil–Water Separation
title The Preparation of Superhydrophobic Polylactic Acid Membrane with Adjustable Pore Size by Freeze Solidification Phase Separation Method for Oil–Water Separation
title_full The Preparation of Superhydrophobic Polylactic Acid Membrane with Adjustable Pore Size by Freeze Solidification Phase Separation Method for Oil–Water Separation
title_fullStr The Preparation of Superhydrophobic Polylactic Acid Membrane with Adjustable Pore Size by Freeze Solidification Phase Separation Method for Oil–Water Separation
title_full_unstemmed The Preparation of Superhydrophobic Polylactic Acid Membrane with Adjustable Pore Size by Freeze Solidification Phase Separation Method for Oil–Water Separation
title_short The Preparation of Superhydrophobic Polylactic Acid Membrane with Adjustable Pore Size by Freeze Solidification Phase Separation Method for Oil–Water Separation
title_sort preparation of superhydrophobic polylactic acid membrane with adjustable pore size by freeze solidification phase separation method for oil–water separation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10384457/
https://www.ncbi.nlm.nih.gov/pubmed/37513463
http://dx.doi.org/10.3390/molecules28145590
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