Polyaniline/Co0.6Zn0.4Fe2O4 core-shell nano-composites. Synthesis, characterization and properties

Gabal, M.A.; Al-Juaid, A. A.; El-Rashed, S.; Hussein, Mahmoud A.; Angari, Y.M. Al

doi:10.1016/j.jallcom.2018.02.316

Cited by 23 publications

(11 citation statements)

References 34 publications

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“…Finally, the precipitates were washed with distilled water and dried in an oven at 80 Pure PANI was prepared by the polymerization method as detailed in Refs. [39,40]. PFN nanocomposites were prepared through a simple in situ polymerization method of PANI by aniline on the surface of FN nanoparticles [39,40], with mass ratios of PANI at 5, 10, and 15%.…”

Section: Sample Preparationmentioning

confidence: 99%

Facile Fabrication of PANI/Fe2.85Ni0.15O4 Nanocomposites and Their Application for the Effective Degradation of Rhodamine B Dye

Manh,

Thi,

Anh

et al. 2023

Magnetochemistry

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Nanocomposites of polyaniline (PANI)/Fe2.85Ni0.15O4 (PFN) were successfully prepared using the co-precipitation method combined with an in-situ polymerization process. The FN and PFN nanocatalysts were characterized using various methods for the photocatalytic degradation of Rhodamine B (RhB). The XRD, Raman, TEM, and DTA-DTG analyses suggest that the FN nanoparticles (NPs) were effectively coated by PANI and that there were interactions between FN and PANI. Magnetic measurements indicated that PFN nanocomposites exhibited good superparamagnetic behavior and high saturation magnetization (39.5–57.6 emu/g), which are suitable for separating photocatalysts from solution for reuse. Adsorption-desorption analysis showed that the specific surface area of PFN was higher than that of FN. The UV-vis absorption spectra of FN and PFN nanocomposites exhibited strong absorption of visible light, attributed to the doping of Ni, which resulted in the reduction of the band-gap energy (Eg) of Fe3O4 to 2.4 eV. PFN nanocomposites with different mass ratios of PANI demonstrated superior photocatalytic activity compared to FN NPs. Furthermore, it was observed that PFN with a 10% mass ratio of PANI exhibited the highest RhB degradation efficiency, achieving a rate of approximately 98% after 300 min of irradiation. Finally, the possible photocatalytic degradation mechanisms of the PFN nanocomposites on RhB were discussed. PFN photocatalysts with good photocatalytic activity, inexpensive materials, and easy preparation could be potential candidates for wastewater purification applications.

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Section: Sample Preparationmentioning

confidence: 99%

Facile Fabrication of PANI/Fe2.85Ni0.15O4 Nanocomposites and Their Application for the Effective Degradation of Rhodamine B Dye

Manh,

Thi,

Anh

et al. 2023

Magnetochemistry

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“…Few researchers have investigated PANI/ferrites, and further research is still needed. [36][37][38] PANI-Zn 0.2 Mn 0.8 Fe 2 O 4 ferrite coreshell composite was synthesized by Khairy et al 36 using in situ chemical oxidation polymerization. These composite samples were characterized by XRD, Fourier transform infrared (FTIR), transmission electron microscopy (TEM), thermogravimetric analysis, vibrating sample magnetometer, and dielectric measurements.…”

Section: Introductionmentioning

confidence: 99%

“…In their research, pure PANI exhibited real part of dielectric constant nearly 3800 and imaginary part of dielectric constant nearly 10,000. Chitra et al 37 38 They were characterized by alternating conductivity (AC)-conductivity, dielectric measurements, XRD, FT-IR, and TEM measurements. The frequency dependence of the real dielectric constant (ε 0 ) and imaginary dielectric constant (ε 00 ) of the prepared samples have high value as 10 6 and 10 7 , respectively.…”

Section: Introductionmentioning

confidence: 99%

“…PANI and Co 0.6 Zn 0.4 Fe 2 O 4 NPs were synthesized using in situ polymerization process by Gabal et al 38 They were characterized by alternating conductivity (AC)‐conductivity, dielectric measurements, XRD, FT‐IR, and TEM measurements. The frequency dependence of the real dielectric constant ( ε ′) and imaginary dielectric constant ( ε ″) of the prepared samples have high value as 10 6 and 10 7 , respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Few researchers have investigated PANI/ferrites, and further research is still needed 36–38 . PANI—Zn 0.2 Mn 0.8 Fe 2 O 4 ferrite core–shell composite was synthesized by Khairy et al 36 using in situ chemical oxidation polymerization.…”

Section: Introductionmentioning

confidence: 99%

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PANI/Zn‐Cu ferrite polymer composites as free‐standing high dielectric materials

Kumar,

Paul Raj,

Muthukrishnan

et al. 2024

Polymers for Advanced Techs

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In a wide range of applications, from consumer electronics to cutting‐edge industrial and scientific equipment, high dielectric permittivity (ε′) polymers are crucial for maximizing the performance and efficiency of electrical and electronic systems. Researchers strive to create and perfect these materials to meet the changing demands of modern technology. It is generally known that freestanding bare polymers cannot achieve high dielectric values; however, the mixing of multiple materials that are distinct is an effective technique for developing high dielectric hybrids. Polymer‐based nanoarchitectures are particularly beneficial for use in the storage of energy due to characteristics such as excellent mechanical strength, noncorrosive nature, lightweight, affordability, versatility, thermal and electrical shielding. The primary aim of this investigation is to prepare copper ferrite, zinc ferrite, and copper0.5 zinc0.5 ferrite (CuFe2O4, ZnFe2O4, and Cu0.5Zn0.5Fe2O4) nanoparticle (NP) via combustion technique using egg albumen as a fuel and these NPs were separately dispersed in polyaniline (PANI) matrix by the method of ex situ polymerization of aniline with an objective to enhance the electrical properties for energy storage and electromagnetic wave applications. Flexible freestanding films were casted via solution casting technique. X‐ray diffractogram of 5 wt.% NP dispersed PANI films confirmed the presence of NPs in the PANI matrix. Scanning electron micrograph images show the homogeneous dispersion of NPs into PANI matrix. Rather than the pure ferrite NPs, mixed ferrite highly enhance the permittivity of PANI films without much increasing its loss factor, the obtained values of ε′ of all the three ferrite added films are higher than polyvinylidene fluoride (PVDF)/(Mn0.2Zr0.2Cu0.2Ca0.2Ni0.2)Fe2O4 nanofiller. In this work notably for 5 wt.% Cu0.5Zn0.5Fe2O4 dispersed film shows the highest value of ε′ (7291) for 100 Hz at 150°C with ultralow loss factor (0.08) which is the key characteristic of an energy storage material. Thus, this present study leads the formation of a cost effective, flexible, high dielectric material, which can be a potential alternate to replace PVDF/(Mn0.2Zr0.2Cu0.2Ca0.2Ni0.2)Fe2O4 and polyvinyl alcohol/Ni0.65Cu0.35Fe2O4 polymer blends for energy storage applications.

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Exchange-coupling behavior in soft/hard Li0.3Co0.5Zn0.2Fe2O4/SrFe12O19 core/shell composite synthesized by the two-step ball-milling-assisted ceramic process

Chen

Xiao

Huang

et al. 2018

J Mater Sci: Mater Electron

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Polyaniline/Co0.6Zn0.4Fe2O4 core-shell nano-composites. Synthesis, characterization and properties

Cited by 23 publications

References 34 publications

Facile Fabrication of PANI/Fe2.85Ni0.15O4 Nanocomposites and Their Application for the Effective Degradation of Rhodamine B Dye

Facile Fabrication of PANI/Fe2.85Ni0.15O4 Nanocomposites and Their Application for the Effective Degradation of Rhodamine B Dye

PANI/Zn‐Cu ferrite polymer composites as free‐standing high dielectric materials

Exchange-coupling behavior in soft/hard Li0.3Co0.5Zn0.2Fe2O4/SrFe12O19 core/shell composite synthesized by the two-step ball-milling-assisted ceramic process

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