Facile synthesis of polyaniline nanoparticles; its adsorption behavior

Ayad, Mohamad M.; El‐Hefnawy, G. B.; Zaghlol, Sawsan

doi:10.1016/j.cej.2012.11.099

Cited by 134 publications

(82 citation statements)

References 40 publications

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“…The FT-IR spectra obtained in this study show agreement with the previously reported results (Ai et al, 2010;Ayad et al, 2013;Najim and Salim, 2014;Ren et al, 2014;Wang et al, 2014a;Yang et al, 2014). For the PANNPs, the characteristic bands of the benzenoid and quinoid units appeared at 1,490 and 1,573 cm PANNRs, nearly similar peaks were noticed with slight vibrations except for the peak at 1,143 cm −1 which was diminished.…”

Section: Resultssupporting

confidence: 81%

“…The XRD pattern of PANNPs shows two peaks: one centered at 2θ=19.4° and the other at 25.4°. The peaks at 2θ=19.4° could be ascribed to a periodicity parallel to the PANI polymer chain; whereas, the peak at 2θ=25.4° could be ascribed to a periodicity perpendicular to the PANI chain (Ai et al, 2010;Ayad et al, 2013;Ren et al, 2014). The XRD pattern of PANNRs is very similar to that of PANNPs, but the two peak locations were slightly shifted to 2θ=18.7°, and 25.9°, respectively.…”

Section: Resultsmentioning

confidence: 52%

“…Polyaniline (PANI) has been attracting a great amount of attention as a stable conducting polymer (CP) because of its ease of synthesis; low cost; good electrical, electrochemical, and optical properties; diverse color changes corresponding to oxidation levels; and better stability compared with other CPs (Pham et al, 2010;Ayad et al, 2013;Najim and Salim, 2014). These superior properties of PANI have been utilized in many applications including fuel cells (Wang et al, 2014b), diodes (Liu et al, 2006) and supercapacitors (Zhang et al, 2011;Gao et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, it can be used for energy storage (Yang et al, 2014), gas sensors (Mérian et al, 2010;Zhang et al, 2015), biomedical applications (Mazeiko et al, 2013;Stejskal et al, 2014), optical and electronic devices (Alam et al, 2013;Khairy and Gouda, 2015), and adsorption processes for either organic pollutants or dyes (Salem, 2010;Javadian, 2014;Wang et al, 2014a). Recently, PANI with different morphologies was synthesized (Pham et al, 2010;Ayad et al, 2013). The morphologies of PANI have been investigated thoroughly by many researchers because of their significant adsorption performance in wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

“…CO 2 provides high solvation ability, low viscosity and high diffusivity, and the ability to replace hazardous solvents (Akbarinezhad et al, 2012). Regarding PANI applications in the field of water purification, it has been used recently to adsorb some anionic and cationic dyes (Salem, 2010;Ayad et al, 2013;Javadian, 2014;Noby et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Adsorption Profiles of Acid Dye Using Synthesized Polyaniline Nanostructure with Different Morphologies

Noby

El-Shazly

Elkady

et al. 2017

J. Chem. Eng. Japan / JCEJ

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The e ect of CO 2 on the morphology of polyaniline (PANI) polymerized in the presence of compressed CO 2 was investigated. Two dissimilar morphologies, nanorods and nanoparticles, were successfully obtained using polymerization with and without compressed CO 2 . The obtained nanorods and particles were characterized by X-ray di raction (XRD), Fourier transform infrared spectroscopy (FT-IR), Brunauer, Emmett and Teller (BET) analysis, and scanning electron microscopy (SEM). FT-IR and XRD results showed the presence of polyaniline emeraldine salt form. The SEM images clearly showed PANI nanorods (PANNRs) and nanoparticles (PANNPs) in polymerized PANI. From SEM images, the average diameters of PANNPs and PANNRs were calculated to be 85 and 90 nm, respectively. BET analysis indicated the surface area of PANNRs to be 44% larger than that of the PANNPs. The adsorption performance of the prepared PANI was evaluated in a decolorization process of acid blue 25 dye (AB25). The PANNRs always showed better adsorption compared with PANNPs. The PANNRs recorded a higher decolorization rate, with 99.8% of the dye adsorbed within 8 min; whereas, PANNPs showed a rate of 99.38% decolorization in 16 min. The adsorption kinetics of both PANI were analyzed with both Freundlich and Langmuir models. As a result, the Langmuir isotherm model showed better agreement with the experimental data of the dye adsorption process than that of Freundlich model. Furthermore, it was found that the dye adsorption procedure onto the two fabricated PANI structures follows the pseudo-second-order model.

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Section: Resultssupporting

confidence: 81%

Section: Resultsmentioning

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Adsorption Profiles of Acid Dye Using Synthesized Polyaniline Nanostructure with Different Morphologies

Noby

El-Shazly

Elkady

et al. 2017

J. Chem. Eng. Japan / JCEJ

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Conjugated Polymer‐Based Composites for Water Purification

Huang

Shao

2015

Fundamentals of Conjugated Polymer Blends, Copolymers and Composites

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Occupying in Metal−Organic Frameworks’ Pores: Vein‐Like PANI Cross‐Coupled Hierarchical Porous UiO‐66 Flexible Electrode for Supercapacitor Application

Chi,

Li,

Wei

et al. 2024

Adv Funct Materials

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Although extending conductive polymer chains into the pores of Metal–Organic Frameworks (MOFs) leverages their advantage of high conductivity and ultra‐high surface area for “double‐high” electrode materials, only the surface pores of MOFs bulk can be occupied by conducting polymer by reported methods. To solve these issues, a selective etching and subsequent electrochemical polymerization strategy is employed. First, the hierarchical porous UiO‐66 (HPMOF) is prepared by acetate etching process, creating abundant mesopores and vein‐like channels that facilitate fast mass feeding of aniline monomers during electrochemical polymerization. Then, vein‐like PANI chains intersect HPMOF bulks and cross‐couples with HPMOF networks, which not only ensure that the inner pore surface is accessible to electrons but also dramatically increases surface area and cycle stability of PANI due to the nano‐confined effect. Therefore, the optimized HPMOF‐20h@PANI electrode showcases exceptional electron transport and ion accessibility, as evidenced by a remarkable specific capacitance of 6507 mF cm−2 at 2 mA cm−2 and retention of 82.1% capacitance after 5000 cycles. Furthermore, the as‐fabricated soft‐pack symmetric supercapacitor exhibits an energy density of 0.293 mWh cm−2 at a power density of 1.28 mW cm−2. This work provides a new route to design flexible “double‐high” electrodes and broadens the horizons in wearable electronics.

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Facile synthesis of polyaniline nanoparticles; its adsorption behavior

Cited by 134 publications

References 40 publications

Adsorption Profiles of Acid Dye Using Synthesized Polyaniline Nanostructure with Different Morphologies

Adsorption Profiles of Acid Dye Using Synthesized Polyaniline Nanostructure with Different Morphologies

Conjugated Polymer‐Based Composites for Water Purification

Occupying in Metal−Organic Frameworks’ Pores: Vein‐Like PANI Cross‐Coupled Hierarchical Porous UiO‐66 Flexible Electrode for Supercapacitor Application

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