Parametric study of microporous nanofiber support and thin-film composite membranes for remediation of saline water
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F25%3A00619858" target="_blank" >RIV/67985858:_____/25:00619858 - isvavai.cz</a>
Alternative codes found
RIV/46747885:24210/25:00013547 RIV/46747885:24410/25:00013547 RIV/46747885:24620/25:00013547 RIV/61989100:27640/25:10259912 and 2 more
Result on the web
<a href="https://journals.sagepub.com/doi/epub/10.1177/15280837251341517" target="_blank" >https://journals.sagepub.com/doi/epub/10.1177/15280837251341517</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1177/15280837251341517" target="_blank" >10.1177/15280837251341517</a>
Alternative languages
Result language
angličtina
Original language name
Parametric study of microporous nanofiber support and thin-film composite membranes for remediation of saline water
Original language description
In this work, polyamide 6 (PA6) nanofiber-supported thin-film composite membranes have been studied for saline water remediation. Nanofiber-based support layers are critical in enhancing the membrane surface area and facilitating the formation of high-performance polyamide (PA) thin films. Herein, microporous nanofiber support membranes were fabricated using a lamination technique at varying temperatures, and the effects of lamination temperature on fiber diameter, pore size, and air permeability were investigated to optimize the support layer for PA thin-film membrane fabrication. Results indicate that increasing the lamination temperature from 110 degrees C to 135 degrees C decreases air permeability and pore size while increasing fiber diameter. Using the optimized support laminated at 110 degrees C, ultrafiltration PA thin-film membranes were developed, and the effects of monomer type and feed pH on membrane performance were evaluated. M-phenylenediamine (MPD)-based membranes achieved a maximum salt rejection of 74% but exhibited a relatively low water flux of 0.42 L<middle dot>m(-2)<middle dot>h(-1) at 400 kPa. In contrast, piperazine (PIP)-based membranes demonstrated a low sodium chloride (NaCl) rejection of 25% but a high magnesium sulfate (MgSO4) rejection of 97% at the same benzenetricarbonyl trichloride (TMC) concentration, with a significantly higher flux of 8.6 L<middle dot>m(-2)<middle dot>h(-1). Acidic conditions improved the flux of MPD-based membranes up to 5-fold but significantly reduced salt rejection, whereas alkaline conditions enhanced salt rejection for PIP-based membranes while decreasing flux. This work is the first attempt in the literature to systematically investigate the influence of lamination temperature on nanofiber support for further PA thin-film membrane formation, providing new insights into optimizing support layer properties for desalination.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20402 - Chemical process engineering
Result continuities
Project
<a href="/en/project/GA25-15195S" target="_blank" >GA25-15195S: New chiral composite magnetic membranes combined with rotational and magnetic levitation forces for racemic mixture separation</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Industrial Textiles
ISSN
1528-0837
e-ISSN
1530-8057
Volume of the periodical
55
Issue of the periodical within the volume
May 2025
Country of publishing house
GB - UNITED KINGDOM
Number of pages
26
Pages from-to
15280837251341517
UT code for WoS article
001484903600001
EID of the result in the Scopus database
2-s2.0-105005228700