Parametric study of microporous nanofiber support and thin-film composite membranes for remediation of saline water

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/46747885:24210/25:00013547 RIV/46747885:24410/25:00013547 RIV/46747885:24620/25:00013547 RIV/61989100:27640/25:10259912 a 2 dalších

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Parametric study of microporous nanofiber support and thin-film composite membranes for remediation of saline water

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Parametric study of microporous nanofiber support and thin-film composite membranes for remediation of saline water

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/GA25-15195S" target="_blank" >GA25-15195S: Nové chirální kompozitní magnetické membrány kombinované s rotačními a magnetickými levitačními silami pro separaci racemických směsí</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Industrial Textiles

ISSN

1528-0837

e-ISSN

1530-8057

Svazek periodika

55

Číslo periodika v rámci svazku

May 2025

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

26

Strana od-do

15280837251341517

Kód UT WoS článku

001484903600001

EID výsledku v databázi Scopus

2-s2.0-105005228700