Evaluation of the influence of Al2O3 nanoparticles on the thermal stability and optical and electrochemical properties of PANI-derived matrix reinforced conducting polymer composites

Maaza, L.; Djafri, Fatiha; Belmokhtar, A.; Benyoucef, Abdelghani

doi:10.1016/j.jpcs.2021.109970

Cited by 31 publications

(31 citation statements)

References 39 publications

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“…2-b. display the FT-IR spectrum of synthesized PANI, it can be seen a series of characteristic peaks including C=C stretching vibration of benzenoid units at 1490 cm −1 and 1576 cm -1 of PANI are presented [25,32], which makes clear that the PANI is in semi-oxidation state. The bands at 1296 cm −1 and 1242 cm −1 are attributed to C-N stretching vibration of secondary aromatic amino structures [33].…”

Section: Adsorbent Characterizationmentioning

confidence: 90%

“…UV-Spectrophotometer (Hitachi U-3000 Spectrophotometer) was applied to measure the MO concentration. Thermogravimetry Analyze (TGA) (Hitachi STA7200 Instrument) was used to determine the thermal and/or oxidative stabilities of materials as well as their [25,26].…”

Section: Measurementsmentioning

confidence: 99%

“…The preparation was carried out at 298 K for 24h. The PANI@AC produced were ltered, washed with deionized water and then dried in oven at 343 K for 24h [25][26][27][28]. The pure PANI was synthetized in similar way mentioned above but in absence of AC.…”

Section: Synthesis Of Adsorbent Materialsmentioning

confidence: 99%

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Anionic Methyl Orange Removal from Aqueous Solutions by Activated Carbon Reinforced Conducting Polyaniline as Adsorbent: Synthesis, Characterization, Adsorption Behavior, Regeneration and Kinetics Study

et al. 2021

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This work investigated the elimination of Methyl Orange (MO) using a new adsorbent prepared from Activated Carbon (AC) with polyaniline reinforced by a simple oxidation chemical method. The prepared materials were characterized using XRD, TGA, FTIR and nitrogen adsorption isotherms. Furthermore, PANI@CA highest speci c surface area values (near 332 m 2 .g − 1 ) and total mesoporous volume (near 0.038 cm 3 .g − 1 ) displayed the better MO removal capacity (192.52 mg.g − 1 at 298 K and pH 6.0), which is outstandingly higher than that of PANI (46.82 mg.g − 1 ). Besides, the process's adsorption, kinetics, and isothermal analysis were examined using various variables such as pH, MO concentration and contact time. To pretend the adsorption kinetics, various kinetics models, the pseudo rst-and pseudo secondorders, were exercised to the experimental results. The kinetic analysis revealed that the pseudo second order rate law performed better than the pseudo rst order rate law in promoting the formation of the chemisorption phase. In the case of isothermal studies, an analysis of measured correlation coe cient (R 2 ) values showed that the Langmuir model was a better match to experimental results than the Freundlich model. By regeneration experiments after ve cycles, acceptable results were observed.

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Section: Adsorbent Characterizationmentioning

confidence: 90%

Section: Measurementsmentioning

confidence: 99%

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Anionic Methyl Orange Removal from Aqueous Solutions by Activated Carbon Reinforced Conducting Polyaniline as Adsorbent: Synthesis, Characterization, Adsorption Behavior, Regeneration and Kinetics Study

et al. 2021

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“…X-ray photoelectron spectroscopy analysis (XPS) was controlled by (VG Microtech Multilab 3000-electron) spectrometer. [20,30].…”

Section: Measurementsmentioning

confidence: 99%

“…Generally, the usage of PANI is presently limited, due to its poor mechanical property. The PANI nanocomposites with different inorganic materials greatly ameliorate their physical and structural properties for pertinent applications [20][21][22]. Among the inorganic nanomaterials, ZnO nanoparticles have received vast interest in exclusive electrical, photocatalytic, adsorption, electronic and optical properties due to their wide bandgap (3.31 eV) as well as their low cost [23,24].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of PANI@ZnO Hybrid Material and Evaluations in Adsorption of Congo Red and Methylene Blue Dyes: Structural Characterization and Adsorption Performance

Toumi

Djelad

Chouli

et al. 2021

J Inorg Organomet Polym

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In this research, a simple oxidation chemical process was applied for the synthesis of novel PANI@ZnO nanocomposite. The prepared nanocomposites were characterized by XPS, XRD, FTIR, SEM, TGA and N2 adsorption-desorption isotherms. Thereby, PANI@ZnO highest SBET values (about 40.84 m 2 .g −1 ), total mesoporous volume (about 3.214 cm 3 .g −1 ) and average pore size (about 46.12 nm). Afterwards, the prepared nanomaterial was applied as novel nanoadsorbent for the adsorption of Congo Red (CR) and Methylene Blue (MB) dyes from aqueous solutions at 298 K and pH 5.0. Besides, the pseudo-second-order model was obtained the best for the adsorption of both dyes. In the case of isotherm models, the Freundlich model showed the best fit. After removal, the spent adsorbent was regenerated. With the regeneration repeated five cycles, the PANI@ZnO regeneration efficiency remained at a very adequate level.

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Preparation of ternary polyaniline@CuO−zeolite composite, discussion of characteristics, properties and their applications in supercapacitors and cationic dye adsorption

Dahou

Belardja

Moulefera

et al. 2023

Polymer International

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Copper oxide−zeolite (CuO−ZT) reinforced polyaniline (PANI) matrices were prepared by in situ oxidative polymerization and the samples were characterized by X‐ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, XRD, TGA, UV–visible spectrophotometry, SEM and Brunauer–Emmett–Teller theory; the optical bandgap was also evaluated. Moreover, the synthesis and exploration of electrodes are increasingly being considered for the development of conducting‐polymer‐based supercapacitors, which has attracted significant interest in energy conversion and storage technology. Here, hybrid materials used in the preparation of the electrode materials on the capacitive properties were investigated. It is found that the PANI@CuO exhibits a high specific capacitance of 311.5 F g−1 at 1.0 A g−1 current density between 0.0 and 1.0 V compared to PANI@CuO−ZT (222.7 F g−1). Further, the PANI@CuO presented an excellent cycling stability at 1.0 A g−1 (1500 cycles; 81.9%) in a two‐electrode system. Accordingly, producing a PANI matrix on CuO presented a simple and viable way to ameliorate the capacitive performance of the supercapacitor. Conversely, the adsorptive removal of malachite green and methyl violet dyes by PANI@CuO−ZT adsorbent could be described by the pseudo‐first‐order and Temkin models. The maximum adsorptive capacity of malachite green and methyl violet dyes was 249.7 and 198.2 mg g−1, respectively. © 2023 Society of Industrial Chemistry.

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Evaluation of the influence of Al2O3 nanoparticles on the thermal stability and optical and electrochemical properties of PANI-derived matrix reinforced conducting polymer composites

Cited by 31 publications

References 39 publications

Anionic Methyl Orange Removal from Aqueous Solutions by Activated Carbon Reinforced Conducting Polyaniline as Adsorbent: Synthesis, Characterization, Adsorption Behavior, Regeneration and Kinetics Study

Anionic Methyl Orange Removal from Aqueous Solutions by Activated Carbon Reinforced Conducting Polyaniline as Adsorbent: Synthesis, Characterization, Adsorption Behavior, Regeneration and Kinetics Study

Synthesis of PANI@ZnO Hybrid Material and Evaluations in Adsorption of Congo Red and Methylene Blue Dyes: Structural Characterization and Adsorption Performance

Preparation of ternary polyaniline@CuO−zeolite composite, discussion of characteristics, properties and their applications in supercapacitors and cationic dye adsorption

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