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MAGOMEDOVA, A. RABADANOVA, A. SHUAIBOV, A. SELIMOV, D. SOBOLA, D. RABADANOV, K. GIRAEV, K. ORUDZHEV, F.
Original Title
Combination NIPS/TIPS Synthesis of α-Fe2O3 and α/γ-Fe2O3 Doped PVDF Composite for Efficient Piezocatalytic Degradation of Rhodamine B
Type
journal article in Web of Science
Language
English
Original Abstract
Highly porous membranes based on polyvinylidene fluoride (PVDF) with the addition of nanoscale particles of non-magnetic and magnetic iron oxides were synthesized using a combined method of non-solvent induced phase separation (NIPS) and thermo-induced phase separation (TIPS) based on the technique developed by Dr. Blade. The obtained membranes were characterized using SEM, EDS, XRD, IR, diffuse reflectance spectroscopy, and fluorescent microscopy. It was shown that the membranes possessed a high fraction of electroactive phase, which increased up to a maximum of 96% with the addition of 2 wt% of alpha-Fe2O3 and alpha/gamma-Fe2O3 nanoparticles. It was demonstrated that doping PVDF with nanoparticles contributed to the reduction of pore size in the membrane. All membranes exhibited piezocatalytic activity in the degradation of Rhodamine B. The degree of degradation increased from 69% when using pure PVDF membrane to 90% when using the composite membrane. The nature of the additive did not affect the piezocatalytic activity. It was determined that the main reactive species responsible for the degradation of Rhodamine B were (OH)-O-center dot and O-center dot(2)-. It was also shown that under piezocatalytic conditions, composite membranes generated a piezopotential of approximately 2.5 V.
Keywords
polyvinylidene fluoride; PVDF; alpha-Fe2O3; gamma-Fe2O3; piezocatalysis; piezopotential; Rhodamine B; NIPS; TIPS; membrane
Authors
MAGOMEDOVA, A.; RABADANOVA, A.; SHUAIBOV, A.; SELIMOV, D.; SOBOLA, D.; RABADANOV, K.; GIRAEV, K.; ORUDZHEV, F.
Released
2. 10. 2023
Publisher
MDPI
Location
BASEL
ISBN
1420-3049
Periodical
MOLECULES
Year of study
28
Number
19
State
Swiss Confederation
Pages from
1
Pages to
18
Pages count
URL
https://www.mdpi.com/1420-3049/28/19/6932
Full text in the Digital Library
http://hdl.handle.net/11012/245218
BibTex
@article{BUT188124, author="Asiyat {Magomedova} and Alina {Rabadanova} and Abdulatip {Shuaibov} and Daud {Selimov} and Dinara {Sobola} and Kamil {Rabadanov} and Kamal M. {Giraev} and Farid {Orudzhev}", title="Combination NIPS/TIPS Synthesis of α-Fe2O3 and α/γ-Fe2O3 Doped PVDF Composite for Efficient Piezocatalytic Degradation of Rhodamine B", journal="MOLECULES", year="2023", volume="28", number="19", pages="18", doi="10.3390/molecules28196932", issn="1420-3049", url="https://www.mdpi.com/1420-3049/28/19/6932" }