Structural, Morphological, Optical, and Electrical Properties of PANi-ZnO Nanocomposites

Patil, S. L.; Pawar, S. G.; Chougule, M. A.; Raut, B. T.; Godse, P. R.; Sen, Shashwati; Patil, V. B.

doi:10.1080/00914037.2011.610051

Cited by 79 publications

(35 citation statements)

References 43 publications

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“…Similarly, incorporation of ZnO caused differences in characteristic peaks corresponding to pure PANI. The peaks moved to 1545, (Patil et al 2012). The results also suggested that there were strong interactions between the polyaniline and nanoparticles (Niu et al 2003).…”

Section: Resultsmentioning

confidence: 71%

Photocatalytic activities of polyaniline-modified TiO2 and ZnO under visible light: an experimental and modeling study

Özbay

Genç

Özbay

et al. 2016

Clean Techn Environ Policy

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In this study, photocatalytic activities of polyaniline-modified TiO 2 and ZnO were examined by photodegradation of Sunfix red S3B reactive dye under visible light. The nanocomposites have been synthesized by in situ oxidative polymerization method. Structural, morphological, and optical characteristics of the prepared photocatalysts were analyzed by Fourier transform infrared spectroscopy and scanning electron microscopy techniques. The results showed that photocatalytic activities of the synthesized nanocomposites have increased due to increasing density of electrons in TiO 2 and ZnO. Irradiation tests were performed to investigate the impacts of photocatalyst amount, initial dye concentration, and irradiation period on photodegradation efficiency. Strength and direction of the relationships between the experimental conditions and the obtained photocatalytic efficiencies were also examined by bivariate correlation analysis. Photocatalyst amount was found to be the most effective factor in the process with correlation coefficients of 0.76 and 0.77 for PANI/TiO 2 and PANI/ZnO, respectively. In the final stage of the work, artificial neural networks were applied to predict the photodegradation efficiencies of the synthesized nanocomposites, individually. The chosen network architecture provided good prediction performances for both of the nanocomposite types.

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Section: Resultsmentioning

confidence: 71%

Photocatalytic activities of polyaniline-modified TiO2 and ZnO under visible light: an experimental and modeling study

Özbay

Genç

Özbay

et al. 2016

Clean Techn Environ Policy

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show abstract

“…The strong frequency dispersion of the electrical permittivity is observed in the low-frequency region. [23,24] The observed behavior may be because of the dipole polarization along with Maxwell-Wagner-Sillars (MWS) polarization [25] at the interface of electrode and nanocomposite surface taking place in these materials that leads to a large dispersion throughout the frequency range. The interaction between PANI chains and surface of Nd 2 O 3 :Al 2 O 3 nanoparticles restricts the motion of dipoles that leads to decrease of ɛ′ at higher frequencies.…”

Section: Dielectric Studymentioning

confidence: 99%

Synthesis, characterization, dielectric and rectification properties of PANI/Nd₂O₃:Al₂O₃nanocomposites

Ansari¹,

Khasim

Parveen³

et al. 2016

Polym. Adv. Technol.

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nanocomposites were prepared by in situ oxidative polymerization method using different weight percentages of oxide powders. The prepared nanocomposites were characterized by Fourier transform infrared spectroscopy and X-ray diffraction for molecular and crystal structures. Scanning electron microscopy and transmission electron microscopy images show the tubular structure of polyaniline nanocomposite with embedded metal oxides. The electrical conductivity of the nanocomposites increases with increase in temperature as well as with concentration of Nd 2 O 3 :Al 2 O 3 particles in polyaniline. This is because of the hopping of charge polarons and extended chain length of the nanocomposites as evidenced by the negative thermal coefficient (NTC) characteristic. A high NTC value of 2.67 was found in nanocomposites with 15 wt% of oxide particles. These nanocomposites show low dielectric constant and dielectric loss; the electrical conductivity is higher than 0.3 S/cm as confirmed by Cole-Cole plot that indicates a decrease in both grain resistance and bulk resistance of the nanocomposites. The current-voltage and capacitance-voltage measurements were also carried out. The carrier mobility μ values of pure polyaniline and nanocomposites were found to be 4.27 × 10 À3 and 1.45 × 10 -2 H.M À1 , respectively. A significant enhancement in carrier mobility was observed in comparison with the literature.

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“…Polymer-based nanocomposites displaying a considerable enhancement of different properties even at very low loading of nanoparticles, have been widely investigated in recent years [1]. In this context, using different nanoparticles such as nanosilica [2,3], nanoclays [4,5], metallic nanoparticles [6,7] and carbonaceous nanomaterials [8][9][10] to improve the physical, mechanical, thermal or electrical properties of polymers have been reported in the literature. Graphene, a two-dimensional lattice of carbon atoms, has received much attention recently in the scientific community because of its extraordinary properties including excellent strength and high thermal and electrical conductivity [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Effect of polyethylene glycol-grafted graphene on the non-isothermal crystallization kinetics of poly(ethylene oxide) and poly(ethylene oxide):lithium perchlorate electrolyte systems

Gomari

Ghasemi

Esfandeh

2016

Materials Research Bulletin

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Structural, Morphological, Optical, and Electrical Properties of PANi-ZnO Nanocomposites

Cited by 79 publications

References 43 publications

Photocatalytic activities of polyaniline-modified TiO2 and ZnO under visible light: an experimental and modeling study

Photocatalytic activities of polyaniline-modified TiO2 and ZnO under visible light: an experimental and modeling study

Synthesis, characterization, dielectric and rectification properties of PANI/Nd₂O₃:Al₂O₃nanocomposites

Effect of polyethylene glycol-grafted graphene on the non-isothermal crystallization kinetics of poly(ethylene oxide) and poly(ethylene oxide):lithium perchlorate electrolyte systems

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Structural, Morphological, Optical, and Electrical Properties of PANi-ZnO Nanocomposites

Cited by 79 publications

References 43 publications

Photocatalytic activities of polyaniline-modified TiO2 and ZnO under visible light: an experimental and modeling study

Photocatalytic activities of polyaniline-modified TiO2 and ZnO under visible light: an experimental and modeling study

Synthesis, characterization, dielectric and rectification properties of PANI/Nd2O3:Al2O3nanocomposites

Effect of polyethylene glycol-grafted graphene on the non-isothermal crystallization kinetics of poly(ethylene oxide) and poly(ethylene oxide):lithium perchlorate electrolyte systems

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Synthesis, characterization, dielectric and rectification properties of PANI/Nd₂O₃:Al₂O₃nanocomposites