The influence of the addition of tungsten trioxide nanoparticle size on structure, thermal, and electroactivity properties of hybrid material–reinforced PANI

Belardja, M. S.; Djelad, Halima; Lafjah, Mama; Chouli, Faïza; Benyoucef, Abdelghani

doi:10.1007/s00396-020-04720-6

Cited by 27 publications

(18 citation statements)

References 39 publications

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“…Moreover, in the spectra of the CTAB‐Clay a substantial change in the basal spacing is observed, it can be observed a displacement of the ascribed reflection from 2 θ = 7.15° (Clay) to 2 θ = 6.37° (CTAB‐Clay) and an expansion of the intragallery spaces from d = 12.35 to 13.86 Å, this gives evidence that the CTAB intercalation into Clay inter‐sheets is occurring. The spacing value ( d ‐spacing) is determined from Bragg's equation (Equation 1) [28–30].

d = \frac{λ}{2 \sin θ}

…”

Section: Resultsmentioning

confidence: 99%

“…Finally, the medium crystallite size ( D ) was calculated from XRD data analysis is clarify by 𝜃 based on the Debye–Scherrer equation. (Equation 2) [28–31].

D = \frac{k . λ}{β . \cos θ}

…”

Section: Resultsmentioning

confidence: 99%

“…Figure 7(A) shows UV-Vis spectra of samples prepared solutions in DMSO, which were examined straight after dissolution. The poly(pAnis) shows two absorption bands characteristic, where a peak at 311 nm and broad absorption peak at 609 nm appear, assigned to π-π * transitions centered on the benzenoid and quinoid rings, respectively [29][30][31][32]. Further, The UV-Vis spectrum of poly(pAnis)@CTAB-Clay is similar to spectrum of poly(pAnis), but maximum bathochromic shift (red shift) occurred from 311 to 315 nm and from 609 to 614 nm.…”

Section: Optical Measurements and Band Gap Calculationmentioning

confidence: 99%

“…The gap energy of materials was studied by plotting (A 2 ) versus (hv) in the Tauc law (Equation 3) [28][29][30], the calculus are recorded in Table 5.…”

Section: Optical Measurements and Band Gap Calculationmentioning

confidence: 99%

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A comparative study on surfactant cetyltrimethylammoniumbromide modified clay‐based poly(p‐anisidine) nanocomposites: Synthesis, characterization, optical and electrochemical properties

et al. 2021

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The preparation of hybrid materials, namely poly(p-anisidine)@Clay (poly (pAnis)@Clay) and poly(p-anisidine)@cetyltrimethylammoniumbromide-Clay (poly(pAnis)@CTAB-Clay), prepared by oxidative polymerization process is presented. The formation of nanomaterials has been confirmed by XRF, XPS, FT-IR, and UV-Vis spectroscopy. Interestingly, the study of the optical band gap energy (E g) evince lowest value of 3.22 eV for poly(pAnis)@CTAB-Clay compared to poly(pAnis)@Clay with 3.26 eV. XRD results demonstrate that the intercalation of the poly(pAnis) into the Clay was confirmed by the increased interlayer spacing, the exfoliation and intercalation forms were affirmed in the TEM images. In addition, the electrochemical behavior indicates that the prepared nanocomposites are electroactive. These results are heartening in respect with the objective to utilize them in the field of technology and research related to the photovoltaics application.

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d = \frac{λ}{2 \sin θ}

…”

Section: Resultsmentioning

confidence: 99%

“…Finally, the medium crystallite size ( D ) was calculated from XRD data analysis is clarify by 𝜃 based on the Debye–Scherrer equation. (Equation 2) [28–31].

D = \frac{k . λ}{β . \cos θ}

…”

Section: Resultsmentioning

confidence: 99%

Section: Optical Measurements and Band Gap Calculationmentioning

confidence: 99%

“…The gap energy of materials was studied by plotting (A 2 ) versus (hv) in the Tauc law (Equation 3) [28][29][30], the calculus are recorded in Table 5.…”

Section: Optical Measurements and Band Gap Calculationmentioning

confidence: 99%

See 2 more Smart Citations

A comparative study on surfactant cetyltrimethylammoniumbromide modified clay‐based poly(p‐anisidine) nanocomposites: Synthesis, characterization, optical and electrochemical properties

et al. 2021

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“…Belardja et al have concluded that reinforcing PANI with the low weight percentage of WO 3 nanoparticles leads to a noticeable increase in the electroactivity property of PANI. [10] On the other hand, Hosseini et al prepared camphor sulfonic acid doped PANI/WO 3 /reduced graphene oxide nanohybrid structure to reach effective photochemical water splitting. It has been reported that under sunlight illumination, the highest photoconversion efficiency and photoelectrochemical current density have been recorded for the photoanode of the indium tin oxide/camphor sulfonic acid doped PANI/WO 3 / reduced graphene oxide structure.…”

Section: Introductionmentioning

confidence: 99%

Structural characterization and dielectric parameters of polyindole/WO₃ nanocomposites

et al. 2020

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In the present study, polyindole/tungsten trioxide (PIn/WO 3) nanocomposites have been prepared and characterized in the context of their structural properties as well as frequency-dependent (ac) electrical features for the first time. While PIn polymer has been synthesized by chemical oxidative polymerization, WO 3 nanorods have been obtained by using the hydrothermal method. Several studies, that is, transmission electron microscopy, Fourier transform infrared, energy dispersive X-ray, X-ray diffraction analysis, scanning electron microscopy, dielectric properties on these PIn/WO 3 nanocomposites have been carried out. These investigations showed the average particle size of WO 3 between 15.36 and 44.71 nm. The pure PIn and WO 3 were compatible with the surface morphology of the PIn and WO 3 reported in the scientific literature. The dielectric analyses have been carried out in the context of both the real and imaginary components of complex permittivity and electrical modulus. The ε 0 values of all PIn/WO 3 composites have been observed lower than that of pure Pln and ε 0 decreased with the increasing amount of WO 3 in the PIn matrix for the low-frequency range. Electric modulus analysis showed that the increase in M 0 value with frequency implies a tendency to reach a M 0 max value which can be interpreted as short-range mobile charge carriers perform the electrical conductivity.

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Point-of-care diagnostics for rapid determination of prostate cancer biomarker sarcosine: application of disposable potentiometric sensor based on oxide-conductive polymer nanocomposite

et al. 2023

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One of the most important reasons for an increased mortality rate of cancer is late diagnosis. Point-of-care (POC) diagnostic sensors can provide rapid and cost-effective diagnosis and monitoring of cancer biomarkers. Portable, disposable, and sensitive sarcosine solid-contact ion-selective potentiometric sensors (SC-ISEs) were fabricated as POC analyzers for the rapid determination of the prostate cancer biomarker sarcosine. Tungsten trioxide nanoparticles (WO3 NPs), polyaniline nanoparticles (PANI NPs), and PANI-WO3 nanocomposite were used as ion-to-electron transducers on screen-printed sensors. WO3 NPs and PANI-WO3 nanocomposite have not been investigated before as ion-to-electron transducer layers in potentiometric SC sensors. The designated sensors were characterized using SEM, XRD, FTIR, UV-VIS spectroscopy, and EIS. The inclusion of WO3 and PANI in SC sensors enhanced the transduction at the interface between the screen-printed SC and the ion-selective membrane, offering lower potential drift, a longer lifetime, shorter response time, and better sensitivity. The proposed sarcosine sensors exhibited Nernstian slopes over linear response ranges 10−3–10−7 M, 10−3–10−8 M, 10−5–10−9 M, and 10−7–10−12 M for control, WO3 NPs, PANI NPs, and PANI-WO3 nanocomposite-based sensors, respectively. From a comparative point of view between the four sensors, PANI-WO3 nanocomposite inclusion offered the lowest potential drift (0.5 mV h−1), the longest lifetime (4 months), and the best LOD (9.95 × 10−13 M). The proposed sensors were successfully applied to determine sarcosine as a potential prostate cancer biomarker in urine without prior sample treatment steps. The WHO ASSURED criteria for point-of-care diagnostics are met by the proposed sensors. Graphical abstract

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The influence of the addition of tungsten trioxide nanoparticle size on structure, thermal, and electroactivity properties of hybrid material–reinforced PANI

Cited by 27 publications

References 39 publications

A comparative study on surfactant cetyltrimethylammoniumbromide modified clay‐based poly(p‐anisidine) nanocomposites: Synthesis, characterization, optical and electrochemical properties

A comparative study on surfactant cetyltrimethylammoniumbromide modified clay‐based poly(p‐anisidine) nanocomposites: Synthesis, characterization, optical and electrochemical properties

Structural characterization and dielectric parameters of polyindole/WO₃ nanocomposites

Point-of-care diagnostics for rapid determination of prostate cancer biomarker sarcosine: application of disposable potentiometric sensor based on oxide-conductive polymer nanocomposite

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The influence of the addition of tungsten trioxide nanoparticle size on structure, thermal, and electroactivity properties of hybrid material–reinforced PANI

Cited by 27 publications

References 39 publications

A comparative study on surfactant cetyltrimethylammoniumbromide modified clay‐based poly(p‐anisidine) nanocomposites: Synthesis, characterization, optical and electrochemical properties

A comparative study on surfactant cetyltrimethylammoniumbromide modified clay‐based poly(p‐anisidine) nanocomposites: Synthesis, characterization, optical and electrochemical properties

Structural characterization and dielectric parameters of polyindole/WO3 nanocomposites

Point-of-care diagnostics for rapid determination of prostate cancer biomarker sarcosine: application of disposable potentiometric sensor based on oxide-conductive polymer nanocomposite

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Product

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Structural characterization and dielectric parameters of polyindole/WO₃ nanocomposites