Synthesis and characterization of polyaniline/nickel oxide composites for fuel additive and dyes reduction

Jamil, Saba; Ahmad, Zunaira; Ali, Muhammad; Khan, Shanza Rauf; Ali, Sarmed; Hammami, Mohamed Amen; Haroon, Muhammad; Saleh, Tawfik A.; Janjua, Muhammad Ramzan Saeed Ashraf

doi:10.1016/j.cplett.2021.138713

Cited by 20 publications

(7 citation statements)

References 30 publications

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“…The PANI/KNO nanocomposites (Figure 3) show the same characteristic peaks as present in PANI and KNO. FTIR crests of composites between 500 and 600 cm −1 (Na‐Ni‐O stretching vibration), 600 and650 cm −1 (CH out of plane bending vibration and para‐distributed benzene rings), 1100 and 1200 cm −1 (CH bending vibration), 1300 and 1350 cm −1 (N = QUINOID=N vibration mode, CN stretching vibration, and CC stretching vibration), 1600 and 1650 cm −1 (CO stretching vibration and HOH bending mode of vibration), 2950 and3300 cm −1 (OH stretching vibration and aromatic NH stretching vibration) and 3400 and 3500 cm −1 (NH stretching vibration) 36,65–67 . The presence of para‐distributed benzene ring and quinoid further confirmed the PANI/KNO composite formation.…”

Section: Resultsmentioning

confidence: 99%

“…At higher frequencies, the movement of charge carriers becomes more efficient, reducing resistance, and minimizing energy consumption, thus resulting in negligible dielectric losses. 66,95,106,115 The tangent loss decrease with the increase in frequency represents the characteristic of conjugated compounds. This behavior can be explained by the unique electronic structure of conjugated compounds, which allows for more efficient charge transport at higher frequencies, leading to decreased energy losses.…”

Section: Dielectric Constantmentioning

confidence: 99%

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Photocatalytic activity of polyaniline‐potassium doped nickel oxide nanocomposites: A comprehensive investigation on multifaceted properties

Bhankhar,

Saini,

Sehrawat

et al. 2024

J of Applied Polymer Sci

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Polyaniline‐potassium doped nickel oxide nanocomposites (PANI/KNO) were efficiently synthesized via an in situ chemical oxidation method, meticulously confirmed by comprehensive x‐ray diffraction, Fourier transformation infrared spectroscopy, energy dispersive x‐ray spectroscopy, selected area electron diffraction, and x‐ray photoelectron spectroscopy analyses. The crystallite size and strain exhibited distinct behaviors, while field emission scanning electron microscopy revealed a blend of irregular spherical shapes and nanofibers, further confirmed by high resolution transmission electron microscopy. These composites exhibited significantly enhanced thermal stability, surpassing PANI by 1.39 times, and showcased a band gap exceeding 3 eV, along with multiple photoluminescence peaks at room temperature (RT). Moreover, their RT AC conductivity experienced a remarkable surge by 4.91 times compared to pure polyaniline. Jonscher's Power Law model and the Havriliak–Negami relaxation model are employed to elucidate the electrical properties of composite materials. The composites displayed nonDebye relaxation behavior with increased conductivity, as observed through impedance analysis, electrical modulus evaluation, and dielectric constant assessment. Additionally, evident superparamagnetic properties and multiple magnetic domains further contributed to their effectiveness. The PANI/KNO composite demonstrated photocatalytic efficiency, achieving over 90% degradation of methylene blue dye across four cycles, thus highlighting its superior photostability. Furthermore, investigations into its response to pH variations and scavenger activity underscored its immense potential for highly effective photocatalytic applications.

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Section: Resultsmentioning

confidence: 99%

Section: Dielectric Constantmentioning

confidence: 99%

Photocatalytic activity of polyaniline‐potassium doped nickel oxide nanocomposites: A comprehensive investigation on multifaceted properties

Bhankhar,

Saini,

Sehrawat

et al. 2024

J of Applied Polymer Sci

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“…25 They are characterized with powerful catalytic activity in degradation process of pollutants compared to different catalysts reported in the literature. 13,14,18,19 Accordingly, in this work, the PBA; copper(II) hexacyanocobaltate(III) (Cu 3 [Co(CN) 6 ] 2 ) nanoparticle were synthesized by a facile inexpensive chemical coprecipitation and investigated as nanocatalyst for the catalytic reduction of toxic MO azo dye.…”

Section: Introductionmentioning

confidence: 99%

Rapid catalytic reduction of environmentally toxic azo dye pollutant by Prussian blue analogue nanocatalyst

El Mously,

Mahmoud,

Gomaa

et al. 2024

RSC Adv.

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“…In recent studies, many polymers have been used as dopants for the reduction of MB, such as polyvinylpyrrolidone, polyaniline, polydopamine, poly( N -vinylcaprolactam), and carbon spheres (Cs). − Many researchers used chitosan, cellulose nanocrystal, and poly(acrylic acid) in the MO that degraded MB 88% for 220 min, 70.6% after 30 min, and 65% in 60 min, respectively. − The above-mentioned catalysts/photocatalysts have some drawbacks such as a low photoresponse toward visible light, high cost, and longer reduction time. Among them, Cs is a potential contender in the realm of catalysis due to the availability of various surface functional groups (such as carbonyl, hydroxyl, and carboxylic) with a high specific surface area, superior chemical durability, and high biocompatibility. , Furthermore, V 2 O 5 has excellent redox properties and can be used as a co-catalyst.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Vanadium Oxide/Carbon Spheres-Doped Nickel Oxide Functioned as a Nanocatalyst and Bactericidal Behavior with Molecular Docking Analysis

Baz,

Ikram,

Haider

et al. 2023

ACS Omega

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Vanadium oxide (V 2 O 5 ) and carbon spheres (Cs)-doped NiO 2 nanostructures (NSs) were prepared using the co-precipitation approach. Several spectroscopic and microscopic techniques, including X-ray diffraction (XRD), UV−vis, FTIR, TEM, and HR-TEM investigations, were used to describe the as-synthesized NSs. The XRD pattern exhibited the hexagonal structure, and the crystallite size of pristine and doped NSs was calculated as 29.3, 32.8, 25.79, and 45.19 nm, respectively. The control sample (NiO 2 ) showed maximum absorption at 330 nm, and upon doping, a redshift was observed, leading to decreased band gap energy from 3.75 to 3.59 eV. TEM of NiO 2 shows agglomerated nonuniform nanorods exhibited with various nanoparticles without a specific orientation; a higher agglomeration was observed upon doping. The (4 wt %) V 2 O 5 /Cs-doped NiO 2 NSs served as superior catalysts with a 94.21% MB reduction in acidic media. The significant antibacterial efficacy was estimated against Escherichia coli by measuring the zone of inhibition (3.75 mm). Besides their bactericidal analysis, V 2 O 5 /Cs-doped NiO 2 was shown to have a binding score of 6.37 for dihydrofolate reductase and a binding score of 4.31 for dihydropteroate synthase in an in silico docking study of E. coli.

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Synthesis and characterization of polyaniline/nickel oxide composites for fuel additive and dyes reduction

Cited by 20 publications

References 30 publications

Photocatalytic activity of polyaniline‐potassium doped nickel oxide nanocomposites: A comprehensive investigation on multifaceted properties

Photocatalytic activity of polyaniline‐potassium doped nickel oxide nanocomposites: A comprehensive investigation on multifaceted properties

Rapid catalytic reduction of environmentally toxic azo dye pollutant by Prussian blue analogue nanocatalyst

Facile Synthesis of Vanadium Oxide/Carbon Spheres-Doped Nickel Oxide Functioned as a Nanocatalyst and Bactericidal Behavior with Molecular Docking Analysis

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