Piezo-, photo- and piezophotocatalytic activity of electrospun fibrous PVDF/CTAB membrane

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F22%3APU150759" target="_blank" >RIV/00216305:26620/22:PU150759 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.urfu.ru/index.php/chimtech/article/view/6273" target="_blank" >https://journals.urfu.ru/index.php/chimtech/article/view/6273</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.15826/chimtech.2022.9.4.20" target="_blank" >10.15826/chimtech.2022.9.4.20</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Piezo-, photo- and piezophotocatalytic activity of electrospun fibrous PVDF/CTAB membrane

Popis výsledku v původním jazyce

A composite material based on polyvinylidene fluoride (PVDF) nanofibers modified with cetyltrimethylammonium bromide (CTAB) was synthesized by coaxial electrospinning. The morphology and structure of the material were studied by SEM, FTIR spectroscopy, X-ray diffraction analysis, XPS, and the piezo-, photo- and piezophotocatalytic activity during the decomposition of the organic dye Methylene blue (MB) was studied. It was shown that the addition of CTAB promotes additional polarization of the PVDF structure due to the ion-dipole interaction. It was shown for the first time that the addition of CTAB promotes the photosensitivity of the wide-gap dielectric polymer PVDF (the band gap is more than 6 eV). It was demonstrated that the photocatalytic decomposition efficiency is 91% in 60 minutes. The material exhibits piezocatalytic activity - 73% in 60 minutes. The experiments on trapping active oxidizing forms established that OH hydroxyl radicals play the main role in the photocatalytic process.

Název v anglickém jazyce

Piezo-, photo- and piezophotocatalytic activity of electrospun fibrous PVDF/CTAB membrane

Popis výsledku anglicky

A composite material based on polyvinylidene fluoride (PVDF) nanofibers modified with cetyltrimethylammonium bromide (CTAB) was synthesized by coaxial electrospinning. The morphology and structure of the material were studied by SEM, FTIR spectroscopy, X-ray diffraction analysis, XPS, and the piezo-, photo- and piezophotocatalytic activity during the decomposition of the organic dye Methylene blue (MB) was studied. It was shown that the addition of CTAB promotes additional polarization of the PVDF structure due to the ion-dipole interaction. It was shown for the first time that the addition of CTAB promotes the photosensitivity of the wide-gap dielectric polymer PVDF (the band gap is more than 6 eV). It was demonstrated that the photocatalytic decomposition efficiency is 91% in 60 minutes. The material exhibits piezocatalytic activity - 73% in 60 minutes. The experiments on trapping active oxidizing forms established that OH hydroxyl radicals play the main role in the photocatalytic process.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Chimica Techno Acta

ISSN

2409-5613

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

RU - Ruská federace

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85145980765