Bismuth zinc borate- Polyacrylonitrile nanofibers for photo-piezocatalysis

Porwal, Chirag; Verma, Sahil; Chauhan, Vishal Singh; Vaish, Rahul

doi:10.1016/j.jiec.2023.04.030

Cited by 20 publications

(8 citation statements)

References 39 publications

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“…obtained from the area shown in the SEM images in Figure 2, are presented in Figure S1 in the Supplementary File [20,23,24,[31][32][33][34][35]. It can be seen that the samples are chemically pure and free from impurities.…”

Section: Resultsmentioning

confidence: 96%

“…From the SEM images of cross-sectional cuts in the insets of Figure 2c,d, it is evident that the membrane thickness is approximately 100-120 µm, and the structure is symmetrical throughout the cross-section. The EDX spectra of the membranes, obtained from the area shown in the SEM images in Figure 2, are presented in Figure S1 in the Supplementary File [20,23,24,[31][32][33][34][35]. It can be seen that the samples are chemically pure and free from impurities.…”

Section: Resultsmentioning

confidence: 99%

“…Code 98-024-7036). Quantitative phase analysis using the Rietveld method showed that α-Fe 2 O 3 exists as the main phase (79.6%), while γ-Fe 2 O 3 is present in a quantity of 20.4% (see Figure S2 Supplementary File) [20,23,24,[31][32][33][34][35]. The average crystallite size of the α-phase was found to be 47.4 nm, while that of the γ-phase was 45.7 nm [29].…”

Section: Resultsmentioning

confidence: 99%

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Combination NIPS/TIPS Synthesis of α-Fe2O3 and α/γ-Fe2O3 Doped PVDF Composite for Efficient Piezocatalytic Degradation of Rhodamine B

Magomedova,

Rabadanova,

Shuaibov

et al. 2023

Molecules

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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 α-Fe2O3 and α/γ-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 and •O2−. It was also shown that under piezocatalytic conditions, composite membranes generated a piezopotential of approximately 2.5 V.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Combination NIPS/TIPS Synthesis of α-Fe2O3 and α/γ-Fe2O3 Doped PVDF Composite for Efficient Piezocatalytic Degradation of Rhodamine B

Magomedova,

Rabadanova,

Shuaibov

et al. 2023

Molecules

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“…When light with enough energy strikes a semiconductor material, it triggers the excitation of electrons ( e − ) from the valence band (VB) to the conduction band (CB), creating positively charged holes ( h + ) in the valence band. This photoexcitation process is the starting point for various photocatalytic reactions [ 37 , 57 ]. The photogenerated pairs ( e − /h + ) have the potential to move to the catalyst surface and take part in photocatalytic surface redox reactions before undergoing any recombination process.…”

Section: Multicatalytic Ability Of Ferroelectric Materialsmentioning

confidence: 99%

“…One promising avenue for the BCZTO ceramic lies in the utilization of electrospinning techniques. Through electrospinning, fibers with diameters ranging from a few nanometers to a few micrometers can be produced, and these fibers contain an embedded ceramic phase [ 57 ]. The vast surface area offered by these electrospun fibers make them highly effective in the degradation of pollutants.…”

Section: Future Scope Of Ferroelectric Bczto Ceramicmentioning

confidence: 99%

Review on Multicatalytic Behavior of Ba0.85Ca0.15Ti0.9Zr0.1O3 Ceramic

Gaur,

Porwal,

Boukhris

et al. 2023

Materials

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Ferroelectric materials are known to possess multicatalytic abilities that are nowadays utilized for removing organic pollutants from water via piezocatalysis, photocatalysis, piezo-photocatalysis, and pyrocatalysis processes. The Ba0.85Ca0.15Ti0.9Zr0.1O3 (BCZTO) ceramic is one such ferroelectric composition that has been extensively studied for electrical and electronic applications. Furthermore, the BCZTO ceramic has also shown remarkable multicatalytic performance in water-cleaning applications. The present review explores the potentiality of BCZTO for water-cleaning and bacterial-killing applications. It also highlights the fundamentals of ferroelectric ceramics, the importance of electric poling, and the principles underlying piezocatalysis, photocatalysis, and pyrocatalysis processes in addition to the multicatalytic capability of ferroelectric BCZTO ceramic.

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