SUPERHYDROPHILIC SURFACE MODIFICATION OF PTFE HOLLOW-FIBER MEMBRANE WITH ADVANCED BIOFOULING PROPERTIES FOR WATER PURIFICATION

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F22%3A00011618" target="_blank" >RIV/46747885:24220/22:00011618 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24620/22:00011618

Výsledek na webu

<a href="https://www.confer.cz/nanocon/2022/4575-superhydrophilic-surface-modification-of-ptfe-hollow-fiber-membrane-with-advanced-biofouling-properties-for-water-purification" target="_blank" >https://www.confer.cz/nanocon/2022/4575-superhydrophilic-surface-modification-of-ptfe-hollow-fiber-membrane-with-advanced-biofouling-properties-for-water-purification</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/nanocon.2022.4575" target="_blank" >10.37904/nanocon.2022.4575</a>

Jazyk výsledku

angličtina

Název v původním jazyce

SUPERHYDROPHILIC SURFACE MODIFICATION OF PTFE HOLLOW-FIBER MEMBRANE WITH ADVANCED BIOFOULING PROPERTIES FOR WATER PURIFICATION

Popis výsledku v původním jazyce

Irrespective of all affirmative physiochemical properties of polytetrafluoroethylene (PTFE) hollow fiber (HF) membrane, its promotion to be served for water purification function is significantly threatened by biofouling which is known as the primary problem in the membrane technology. The hydrophobic nature of PTFE attracts biofoulants leading to the pore blockage and lowering of the flux and functional life. Thus, this investigation aimed to devise an innovative silan-mediated polydopamine (PDA) coating incorporated with ZnO nanoparticles (NP) to trim the surface of the PTFE HF membrane and subsequently increase its functional property and biofouling resistivity. SEM images and EDX spectroscopies showed the time-dependent growth of PDA coating and elemental analysis on the surface, respectively. The water contact angle results illustrated the successful transformation of the surface characteristics of the PTFE HF membrane from hydrophobic (app. 130°) to superhydrophilic (0°) after surface modification. An exclusive dead-end cell was devised to comparatively evaluate the permeation and protein separation of surface-modified and pure PTFE HF membranes under constant pressure. Filtration tests’ results, alongside the microbial assessments, revealed that the modified membranes showed a lower tendency towards biofouling. The outcomes of this study shed light on addressing the key challenges of today‘s demands for harnessing membrane biofouling and remarkably expand the PTFE HF membrane’s potential to be utilized in advanced water treatment technology.

Název v anglickém jazyce

SUPERHYDROPHILIC SURFACE MODIFICATION OF PTFE HOLLOW-FIBER MEMBRANE WITH ADVANCED BIOFOULING PROPERTIES FOR WATER PURIFICATION

Popis výsledku anglicky

Irrespective of all affirmative physiochemical properties of polytetrafluoroethylene (PTFE) hollow fiber (HF) membrane, its promotion to be served for water purification function is significantly threatened by biofouling which is known as the primary problem in the membrane technology. The hydrophobic nature of PTFE attracts biofoulants leading to the pore blockage and lowering of the flux and functional life. Thus, this investigation aimed to devise an innovative silan-mediated polydopamine (PDA) coating incorporated with ZnO nanoparticles (NP) to trim the surface of the PTFE HF membrane and subsequently increase its functional property and biofouling resistivity. SEM images and EDX spectroscopies showed the time-dependent growth of PDA coating and elemental analysis on the surface, respectively. The water contact angle results illustrated the successful transformation of the surface characteristics of the PTFE HF membrane from hydrophobic (app. 130°) to superhydrophilic (0°) after surface modification. An exclusive dead-end cell was devised to comparatively evaluate the permeation and protein separation of surface-modified and pure PTFE HF membranes under constant pressure. Filtration tests’ results, alongside the microbial assessments, revealed that the modified membranes showed a lower tendency towards biofouling. The outcomes of this study shed light on addressing the key challenges of today‘s demands for harnessing membrane biofouling and remarkably expand the PTFE HF membrane’s potential to be utilized in advanced water treatment technology.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20701 - Environmental and geological engineering, geotechnics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

NANOCON Conference Proceedings - International Conference on Nanomaterials

ISBN

978-808836509-9

ISSN

2694-930X

e-ISSN

—

Počet stran výsledku

6

Strana od-do

91-96

Název nakladatele

TANGER Ltd.

Místo vydání

—

Místo konání akce

Brno

Datum konání akce

1. 1. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—