Piezo-Enhanced Photocatalytic Activity of the Electrospun Fibrous Magnetic PVDF/BiFeO3 Membrane

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dc.contributor.authorOrudzhev, Faridcs
dc.contributor.authorSobola, Dinaracs
dc.contributor.authorRamazanov, Shikhgasancs
dc.contributor.authorČástková, Kláracs
dc.contributor.authorPapež, Nikolacs
dc.contributor.authorSelimov, Daudcs
dc.contributor.authorAbdurakhmanov, Magomedcs
dc.contributor.authorShuaibov, Abdulatipcs
dc.contributor.authorRabadanova, Alinacs
dc.contributor.authorGulakhmedov, Rashidcs
dc.contributor.authorHolcman, Vladimírcs
dc.coverage.issue1cs
dc.coverage.volume15cs
dc.date.issued2023-01-03cs
dc.description.abstractCreating stimulus-sensitive smart catalysts capable of decomposing organic dyes with high efficiency is a critical task in ecology. Combining the advantages of photoactive piezoelectric nanomaterials and ferroelectric polymers can effectively solve this problem by collecting mechanical vibrations and light energy. Using the electrospinning method, we synthesized hybrid polymer-inorganic nanocomposite fiber membranes based on polyvinylidene fluoride (PVDF) and bismuth ferrite (BFO). The samples were studied by scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FTIR), total transmittance and diffuse reflectance, X-ray photoelectron spectroscopy (XPS), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), vibrating-sample magnetometer (VSM), and piezopotential measurements. It has been demonstrated that the addition of BFO leads to an increase in the proportion of the polar phase from 86.5% to 96.1% due to the surface ion--dipole interaction. It is shown that the composite exhibits anisotropy of magnetic properties depending on the orientation of the magnetic field. The results of piezo-photocatalytic experiments showed that under the combined action of ultrasonic treatment and irradiation with both visible and UV light, the reaction rate increased in comparison with photolysis, sonolysis, and piezocatalysis. Moreover, for PVDF/BFO, which does not exhibit photocatalytic activity, under the combined action of light and ultrasound, the reaction rate increases by about 3× under UV irradiation and by about 6× under visible light irradiation. This behavior is explained by the piezoelectric potential and the narrowing of the band gap of the composite due to mechanical stress caused by the ultrasound.en
dc.formattextcs
dc.format.extent1-14cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPolymers. 2023, vol. 15, issue 1, p. 1-14.en
dc.identifier.doi10.3390/polym15010246cs
dc.identifier.issn2073-4360cs
dc.identifier.orcid0000-0002-0008-5265cs
dc.identifier.orcid0000-0002-6343-6659cs
dc.identifier.orcid0000-0003-2297-2890cs
dc.identifier.orcid0000-0001-7402-4660cs
dc.identifier.other180636cs
dc.identifier.researcheridG-1175-2019cs
dc.identifier.researcheridY-9823-2019cs
dc.identifier.researcheridE-2366-2012cs
dc.identifier.scopus57189064262cs
dc.identifier.scopus57195963424cs
dc.identifier.scopus25928429400cs
dc.identifier.urihttp://hdl.handle.net/11012/209158
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofPolymerscs
dc.relation.urihttps://www.mdpi.com/2073-4360/15/1/246cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2073-4360/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectPVDFen
dc.subjectBiFeO3en
dc.subjectphotocatalysisen
dc.subjectpiezocatalysisen
dc.subjectpiezo-photocatalysisen
dc.subjectelectrospinningen
dc.subjectfibersen
dc.subjectsmart materialsen
dc.titlePiezo-Enhanced Photocatalytic Activity of the Electrospun Fibrous Magnetic PVDF/BiFeO3 Membraneen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-180636en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:40:31en
sync.item.modts2025.01.17 18:39:29en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav fyzikycs
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