Structural, optical properties, impedance spectroscopy studies and electrical conductivity of SnO2 nanoparticles prepared by polyol method

Soltan, Wissem Ben; Nasri, S.; Lassoued, Mohamed Saber; Ammar, Salah

doi:10.1007/s10854-017-6356-1

Cited by 40 publications

(16 citation statements)

References 41 publications

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“…As shown in Figure 2, the peaks of all the prepared samples are well indexed according the standard rutile-like, i.e., cassiterite, crystalline structure (JCPDS card no 41-1445). ere are no traces neither of vanadium nor of vanadium oxide that can be observed, which illustrates the good crystallinity of the nanoparticles [57]. As compared to the pure SnO 2 NPs, a continuous shift towards higher angle values along with a gradual reduction in the diffraction peak intensity and an expansion of the peak width was observed with the increasing vanadium content.…”

Section: Resultsmentioning

confidence: 86%

“…However, few reports have been conducted on evaluating the photocatalytic activity of SnO 2 : V NPs. us, SnO 2 : V NPs are more active as catalysts than pure SnO 2 [54][55][56][57]. All these studies have proved the enhanced photocatalytic activity of SnO 2 NPs after doping with vanadium ( Table 1).…”

Section: Introductionmentioning

confidence: 73%

“…Consequently, the crystallite sizes have decreased with the increase of vanadium doping concentrations from 19.8 nm for undoped SnO 2 NPs to 10.3 nm for SnO 2 : V 4% NPs. erefore, the density of the SnO 2 : V NPs nucleation centers has improved [57,60]. Moreover, the decrease in lattice constants a and c can be justified by the integration of…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced Photocatalytic Activity of Vanadium-Doped SnO₂ Nanoparticles in Rhodamine B Degradation

Letifi

Litaiem

Dridi

et al. 2019

Advances in Condensed Matter Physics

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In this paper, we have reported a novel photocatalytic study of vanadium-doped SnO2 nanoparticles (SnO2: V NPs) in rhodamine B degradation. These NPs have been prepared with vanadium concentrations varying from 0% to 4% via the coprecipitation method. Structural, morphological, and optical properties of the prepared nanoparticles have been investigated by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, transmission electron microscope (TEM), and UV-Vis and photoluminescence (PL) spectroscopy. Structural properties showed that both undoped and SnO2: V NPs exhibited the tetragonal structure, and the average crystal size has been decreased from 20 nm to 10 nm with the increasing doping level of vanadium. Optical studies showed that the absorption edge of SnO2: V NPs showed a redshift with the increasing vanadium concentration. This redshift leads to the decrease in the optical band gap from 3.25 eV to 2.55 eV. A quenching in luminescence intensity has been observed in SnO2: V NPs, as compared to the undoped sample. Rhodamine B dye (RhB) has been used to study the photocatalytic degradation of all synthesized NPs. As compared to undoped SnO2 NPs, the photocatalytic activity of SnO2: V NPs has been improved. RhB dye was considerably degraded by 95% within 150 min over on the SnO2: V NPs.

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Section: Resultsmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 73%

See 1 more Smart Citation

Enhanced Photocatalytic Activity of Vanadium-Doped SnO₂ Nanoparticles in Rhodamine B Degradation

Letifi

Litaiem

Dridi

et al. 2019

Advances in Condensed Matter Physics

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“…The decrease in activation energy under pressure indicates that pressure plays an important role in decreasing the energy barriers, which consequently enhances the conductivity. The electrical conduction of semiconducting metal oxides such as SnO 2 and ZnO strongly depends upon lattice vacancies at oxygen sites 6,19 . The conductivity may also result from the migration of charged particles of SnO 2 , such as O − , O 2− , and , or the migration of oxygen defects across the grain interior.…”

Section: Resultsmentioning

confidence: 99%

“…For SnO 2 , studies of its conduction mechanism have provided possible routes for optimising nanocrystalline SnO 2 -based devices 6,7 . Various approaches have been proposed to enhance the electrical conductivity, including changing the grain size 8 and chemical doping 9 .…”

Section: Introductionmentioning

confidence: 99%

Effects of high pressure on the electrical resistivity and dielectric properties of nanocrystalline SnO 2

Shen

Wang

et al. 2018

Sci Rep

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The electrical transport and structural properties of tin oxide nanoparticles under compression have been studied by in situ impedance measurements and synchrotron X-ray diffraction (XRD) up to 27.9 GPa. It was found that the conduction of SnO2 can be improved significantly with compression. Abnormal variations in resistivity, relaxation frequency, and relative permittivity were observed at approximately 12.3 and 25.0 GPa, which can be attributed to pressure-induced tetragonal- orthorhombic-cubic structural transitions. The dielectric properties of the SnO2 nanoparticles were found to be a function of pressure, and the dielectric response was dependent on frequency and pressure. The dielectric constant and loss tangent decreased with increasing frequency. Relaxation-type dielectric behaviour dominated at low frequencies. Whereas, modulus spectra indicated that charge carrier short-range motion dominated at high frequencies.

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Continuous Microreactor‐Based Synthesis of SnO₂ Nanoparticles for Sensor Applications

Odenwald,

Niedner,

Haberkorn

et al. 2024

Zeitschrift anorg allge chemie

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Tin oxide nanoparticles are well‐established materials with a wide range of applications, including optoelectronic devices and solid‐state gas sensors. Conventional synthesis methods of these systems are often based on batch processes. In this study, we compare batch and continuous synthesis methods for tin dioxide nanoparticles using precipitation and sol‐gel processes. For the continuous processes we applied the so called microjet reactor method. The nanoparticles were characterized by TEM, elemental analysis and XRD and exhibited particle sizes of 1.7‐3.0 nm and crystallite sizes of 1.7‐2.3 nm, consisting of tetragonal (P42/mnm) and orthorhombic (Pbcn) phases. We have evaluated different post‐synthesis purification methods to remove impurities such as chlorides and carbon‐hydrogen species. Each purification method exhibited unique advantages and side effects, providing insight into selecting the most appropriate method for specific applications. We also demonstrated the potential of these SnO2 nanoparticles as ethanol gas sensing materials and compared their performance with a commercial sensor.

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Structural, optical properties, impedance spectroscopy studies and electrical conductivity of SnO2 nanoparticles prepared by polyol method

Cited by 40 publications

References 41 publications

Enhanced Photocatalytic Activity of Vanadium-Doped SnO₂ Nanoparticles in Rhodamine B Degradation

Enhanced Photocatalytic Activity of Vanadium-Doped SnO₂ Nanoparticles in Rhodamine B Degradation

Effects of high pressure on the electrical resistivity and dielectric properties of nanocrystalline SnO 2

Continuous Microreactor‐Based Synthesis of SnO₂ Nanoparticles for Sensor Applications

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Structural, optical properties, impedance spectroscopy studies and electrical conductivity of SnO2 nanoparticles prepared by polyol method

Cited by 40 publications

References 41 publications

Enhanced Photocatalytic Activity of Vanadium-Doped SnO2 Nanoparticles in Rhodamine B Degradation

Enhanced Photocatalytic Activity of Vanadium-Doped SnO2 Nanoparticles in Rhodamine B Degradation

Effects of high pressure on the electrical resistivity and dielectric properties of nanocrystalline SnO 2

Continuous Microreactor‐Based Synthesis of SnO2 Nanoparticles for Sensor Applications

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Product

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Enhanced Photocatalytic Activity of Vanadium-Doped SnO₂ Nanoparticles in Rhodamine B Degradation

Enhanced Photocatalytic Activity of Vanadium-Doped SnO₂ Nanoparticles in Rhodamine B Degradation

Continuous Microreactor‐Based Synthesis of SnO₂ Nanoparticles for Sensor Applications