Synergistic effects of natural biosurfactant and metal oxides modification on PVDF nanofiber filters for efficient microplastic and oil removal

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F25%3A00012799" target="_blank" >RIV/46747885:24220/25:00012799 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24620/25:00012799

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0957582024016306" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0957582024016306</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.psep.2024.12.059" target="_blank" >10.1016/j.psep.2024.12.059</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synergistic effects of natural biosurfactant and metal oxides modification on PVDF nanofiber filters for efficient microplastic and oil removal

Popis výsledku v původním jazyce

The removal of microplastics and oil from oil-water emulsions presents significant challenges in membrane technology due to issues with low permeability, rejection rates, and membrane fouling. This study focuses on enhancing nanofibrous composite membranes to effectively separate microplastic contaminants (0.5 µm) and oil-water emulsions in wastewater. Polyvinylidene fluoride (PVDF) polymeric nanofibers were produced using a needle-free electrospinning technique and attached to a nonwoven surface through lamination. The membranes were modified with alkaline treatment, biosurfactant (BS), TiO2, and CuO particles to prevent fouling and improve separation efficiency. The modified membranes demonstrated exceptional water permeability, with BS-modified membranes reaching above 9000 L m−2 h−1 bar−1 for microplastic separation. However, BS modifications led to reduced water permeability during oil-water emulsion treatment. TiO2 and CuO further enhanced permeability and reduced fouling. The TiO2-modified membranes exhibited superior performance in oil-water emulsion separation, maintaining high oil rejection rates (∼95 %) and antifouling properties. The maximum microplastic and oil rejection rates were of 99.99 % and 95.30 %, respectively. This study illustrates the successful modification of membrane surfaces to improve the separation of microplastics and oil-water emulsions, offering significant advancements in wastewater treatment technology.

Název v anglickém jazyce

Synergistic effects of natural biosurfactant and metal oxides modification on PVDF nanofiber filters for efficient microplastic and oil removal

Popis výsledku anglicky

The removal of microplastics and oil from oil-water emulsions presents significant challenges in membrane technology due to issues with low permeability, rejection rates, and membrane fouling. This study focuses on enhancing nanofibrous composite membranes to effectively separate microplastic contaminants (0.5 µm) and oil-water emulsions in wastewater. Polyvinylidene fluoride (PVDF) polymeric nanofibers were produced using a needle-free electrospinning technique and attached to a nonwoven surface through lamination. The membranes were modified with alkaline treatment, biosurfactant (BS), TiO2, and CuO particles to prevent fouling and improve separation efficiency. The modified membranes demonstrated exceptional water permeability, with BS-modified membranes reaching above 9000 L m−2 h−1 bar−1 for microplastic separation. However, BS modifications led to reduced water permeability during oil-water emulsion treatment. TiO2 and CuO further enhanced permeability and reduced fouling. The TiO2-modified membranes exhibited superior performance in oil-water emulsion separation, maintaining high oil rejection rates (∼95 %) and antifouling properties. The maximum microplastic and oil rejection rates were of 99.99 % and 95.30 %, respectively. This study illustrates the successful modification of membrane surfaces to improve the separation of microplastics and oil-water emulsions, offering significant advancements in wastewater treatment technology.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20701 - Environmental and geological engineering, geotechnics

Projekt

—

Návaznosti

—

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Process Safety and Environmental Protection>

ISSN

0957-5820

e-ISSN

—

Svazek periodika

194

Číslo periodika v rámci svazku

February

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

997-1009

Kód UT WoS článku

001396649300001

EID výsledku v databázi Scopus

2-s2.0-85212919724