Influence of TiO2-Fe3O4-MWCNT hybrid nanotubes on piezoelectric and electromagnetic wave absorption properties of electrospun PVDF nanocomposites

Samadi, Ali; Ahmadi, Ramin; Hosseini, Seyed Abolfazl

doi:10.1016/j.orgel.2019.105405

Cited by 57 publications

(19 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, peaks at wavelengths 936, 1054, and 1213 cm −1 are attributed to W=O,

in plane bending and C–O functional groups, respectively. Moreover, other appeared peaks are correspond to the vibration of O–H bond due to the presence of surface-absorbed particles (1401 cm −1 ) [ 48 ], C=C sp 2 carbon atoms (main finger print of graphene oxide) (1562 cm −1 ), C–H stretching vibration (2802 cm −1 ), carboxylic acid O–H functional groups (3104–3139 cm −1 ) and hydroxyl functional groups (–OH). These obtained data from FTIR analysis clearly confirmed the successful synthesis of GO-ITN hybrid structure and integration of magnetite nanoparticles with tungsten throughout the GO surface.…”

Section: Resultsmentioning

confidence: 99%

Superior X-ray Radiation Shielding Effectiveness of Biocompatible Polyaniline Reinforced with Hybrid Graphene Oxide-Iron Tungsten Nitride Flakes

et al. 2020

View full text Add to dashboard Cite

X-ray radiation is a harmful carcinogenic electromagnetic source that can adversely affect the health of living species and deteriorate the DNA of cells, thus it’s vital to protect vulnerable sources from them. To address this flaw, the conductive polymeric structure of polyaniline (PANi) was reinforced with diverse filler loadings (i.e., 25 wt % and 50 wt %) of hybrid graphene oxide-iron tungsten nitride (ITN) flakes toward attenuation of X-ray beams and inhabitation of microorganisms’ growth. Primary characterizations confirmed the successful decoration of graphene oxide (GO) with interconnected and highly dense structure of iron tungsten nitride with a density of about 24.21 g·cm−3 and reinforcement of PANi with GO-ITN. Additionally, the outcome of evaluations showed the superior performance of developed shields, where a shield with 1.2 mm thickness containing 50 wt % GO-ITN showed 131.73% increase in the electrical conductivity (compared with neat PANi) along with 78.07%, 57.12%, and 44.99% decrease in the amplitude of the total irradiated X-ray waves at 30, 40, and 60 kVp tube voltages, respectively, compared with control X-ray dosage. More importantly, the developed shields not only showed non-toxic nature and improved the viability of cells, but also completely removed the selected microorganisms at a concentration of 1000 µg·mL−1.

show abstract

“…Additionally, peaks at wavelengths 936, 1054, and 1213 cm −1 are attributed to W=O,

Section: Resultsmentioning

confidence: 99%

Superior X-ray Radiation Shielding Effectiveness of Biocompatible Polyaniline Reinforced with Hybrid Graphene Oxide-Iron Tungsten Nitride Flakes

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The final solution was loaded into a syringe to be electrospun. Considering the literature [72][73][74] and supplemental tests to reach highly oriented and bead-free fibers, the distance between the syringe tip and drum collector was set at 15 cm, the voltage difference between the syringe and collector was set at 15 kV and the solution was electrospun with a rate of (0.5 mL/h). During the electrospinning process, the polymer solution is stretched and poled, the solvent evaporated and the polymer collected in the collector, where the layer of nanofibers is formed on the rotating drum.…”

Section: Preparation Of the Fe 3 O 4 @Mno 2 / Pvdf Samplesmentioning

confidence: 99%

“…[69][70][71] But there is no publication regarding the performance of porous core-shell hybrid NPs (in this case porous core-shell Fe 3 O 4 @MnO 2 ) in the field of flexible piezoelectric, especially flexible piezoelectric cum-EM-absorbing multifunctional material, which can have a variety of applications. We have previously investigated the effect of the core-shell plate shape nanostructures 72 and the coreshell tubular shape nanostructures 73 in PVDF to develop the novel flexible piezoelectric Cum-EM-sensitive multifunctional material. In this study, for the first time, surface porosity-engineered Fe 3 O 4 @MnO 2 core-shell nanoparticles were used as a filler to improve piezoelectricity cum-electromagnetic wave absorption of electrospun PVDF.…”

Section: Introductionmentioning

confidence: 99%

Flexible piezoelectric cum‐ electromagnetic ‐absorbing multifunctional nanocomposites based on electrospun poly (vinylidene fluoride) incorporated with synthesized porous core‐shell nanoparticles

Samadi

Pourahmad

2020

Int J Energy Res

Self Cite

View full text Add to dashboard Cite

Flexibility, protection against harmful electromagnetic (EM) waves, and mimicking movement patterns of human beings are among the most required features of advanced textiles. In this regard, the present study was conducted to investigate the possibility of producing flexible, piezoelectric, and EM-sensitive multifunctional nanofibers. Porous core-shell Fe 3 O 4 @MnO 2 Nanoparticles (NPs) were synthesized and dispersed in poly (vinylidene fluoride) through solution mixing methods in different concentrations. Then, nanofibers were prepared by the electrospinning technique. Extensive characterizations including morphological, structural, piezoelectric response, and EM wave absorbance tests were performed on both synthesized NPs and electrospun mats. The effects of filler content, piezoelectric dimension, and test dynamic condition on the output voltage of the piezoelectric generator were also assessed. FTIR and XRD investigations respectively showed that the β phase content increased up to 10% and 7% in presence of 4% NPs that led to an increase of up to 105% in piezoelectric response (up to 23.5 V). Output voltages increased linearly with slopes of 2.83, 1.92, 0.55, 0.306, and 0.086 by increasing the NP content, frequency, piezoelectric area, force, and thickness, respectively. The results of the study indicated that produced nanofibers can absorb significant EM waves in addition to showing high piezoelectric response.

show abstract

“…In addition, in the recent year two or more fillers have also been modified together to improve the piezoelectric response of the nanogenerator. Samadi et al have reported TiO 2 ‐Fe 3 O 4 ‐MWCNT/PVDF and Fe 3 O 4 ‐GO/PVDF based electrospun hybrid nanocomposite materials for influencing the piezoelectric properties and electromagnetic wave absorption properties. In other study, Parangusan et al have investigated the role of electromagnetic filler (Ce‐Fe 2 O 3 and Ce‐Co 3 O 4 ) loaded into PVDF electrospun nanocomposite webs on its piezoelectric effect.…”

Section: Introductionmentioning

confidence: 99%

A hybrid piezoelectric nanogenerator comprising of KNN/ZnO nanorods incorporated PVDF electrospun nanocomposite webs

Bairagi

Ali

2020

Int J Energy Res

View full text Add to dashboard Cite

A unique potassium sodium niobate (KNN)/zinc oxide (ZnO) incorporated Poly(vinylidene fluoride) (PVDF) polymer-based hybrid piezoelectric nanogenerator has been developed by using electrospinning process.Electrospinning method has been used due to its remarkable role in improving the piezoelectric performance of the nanocomposite based nanogenerator by providing mechanical stretching and in situ poling of both the polymer as well as filler at the same time. The PVDF/KNN/ZnO electrospun nanocompositebased piezoelectric nanogenerator exhibits the maximum output voltage as compared to PVDF/KNN and PVDF/ZnO based nanogenerator. The output voltage and current for the PVDF/KNN/ZnO based nanogenerator are 25 V and 1.81 μA (when pressure is applied by the finger tapping mode) and 8.31 V and 5 μA (when pressure is applied by standard sewing machine). The synergistic effect of KNN and ZnO nanorods into PVDF polymer matrix significantly improves the resultant piezoelectric performance of the PVDF/KNN/ZnO based nanogenerator by which it has been possible to glow an LED, power density of 11.31 μW/cm 2 (finger tapping) and 10.38 μW/cm 2 (pressure applied by sewing machine). Finally, the practical applicability of the produced nanogenerator has been checked by attaching it on elbow and wrist of a human hand, which shows 90 mV (for elbow), 400 mV (front side of wrist), and 225 mV (back side of wrist) output voltage by bending and moving of the same. K E Y W O R D Sbeta nucleation, in situ poling, nanofibrous web, nanorods, piezoelectric, PVDF/KNN/ZnO hybrid structure

show abstract

Influence of TiO2-Fe3O4-MWCNT hybrid nanotubes on piezoelectric and electromagnetic wave absorption properties of electrospun PVDF nanocomposites

Cited by 57 publications

References 44 publications

Superior X-ray Radiation Shielding Effectiveness of Biocompatible Polyaniline Reinforced with Hybrid Graphene Oxide-Iron Tungsten Nitride Flakes

Superior X-ray Radiation Shielding Effectiveness of Biocompatible Polyaniline Reinforced with Hybrid Graphene Oxide-Iron Tungsten Nitride Flakes

Flexible piezoelectric cum‐ electromagnetic ‐absorbing multifunctional nanocomposites based on electrospun poly (vinylidene fluoride) incorporated with synthesized porous core‐shell nanoparticles

A hybrid piezoelectric nanogenerator comprising of KNN/ZnO nanorods incorporated PVDF electrospun nanocomposite webs

Contact Info

Product

Resources

About