Radiation-induced nucleation and pH-controlled nanostructure shape of polyaniline dispersed in DMF

El-Sayyad, Gharieb S.; Alkhursani, Sheikha A.; Madani, M.

doi:10.1007/s00289-018-2336-8

Cited by 16 publications

(5 citation statements)

References 39 publications

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“…Figure 3 b shows the XRD peaks of (PVC/LLDPE) ZnO –EDA sample that almost exhibit only two peaks at 7.02° and 17.3°. Figure 5 c shows the XRD peaks of (PVC/LLDPE)ZnO-An, which show the sharp characteristic peaks of aniline molecules with high crystallinity at 16.38° 29 . Figure 5 c,d shows the XRD peaks of both (PVC/LLDPE)ZnO–pA, (PVC/LLDPE)ZnO-DMA that exhibit the shifted peaks of LLDPE and ZnO pattern.…”

Section: Resultsmentioning

confidence: 99%

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Impact of γ-irradiation and SBR content in the compatibility of aminated (PVC/LLDPE)/ZnO for improving their AC conductivity and oil removal

Sharshir

Fayek

El-Gawad

et al. 2022

Sci Rep

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In some cases, blends containing PVC and LLDPE show low compatibility. Adding styrene-butadiene rubber to the PVC/LLDPE mixtures leads to a noticeable increase in tensile strength and compatibility of the blends. Also, an improvement in tensile strength is observed after incorporating SBR compatibilizer resulting in entirely different gamma irradiation doses. Without a compatibilizer, the mixture exhibits a distributed PVC and LLDPE phase with variable sizes and shapes; even a sizable portion of the domains resemble droplets. Styrene butadiene rubber (SBR) and gamma radiation make mixtures of (PVC/LLDPE) more compatible. The SEM study of the blends demonstrated that adding the compatibilizer resulted in finer blend morphologies with less roughness. At the same time, gamma irradiation reduced this droplet and gave a more smooth surface. Poly(vinyl chloride) (PVC) was chemically modified with four different amino compounds, including ethylene diamine (EDA), aniline (An), p-anisidine (pA) and dimethyl aniline (DMA) for improving the electric conductivity and oil removal capability of the blend polymer. All ionomers were prepared by nucleophilic substitution in a solvent/non-solvent system under mild conditions. This work novelty shows a sustainable route for producing oil adsorption materials by recycling plastic waste. After the amination process of poly(vinyl chloride) the oil adsorption was significantly enhanced.

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Section: Resultsmentioning

confidence: 99%

“…Compared with E-Beam radiation, γ-ray has higher penetration power [22][23][24][25] . The negative charge particles of E-Beam radiation limit its penetration power [26][27][28][29][30] .…”

Section: Resultsmentioning

confidence: 99%

Impact of γ-irradiation and SBR content in the compatibility of aminated (PVC/LLDPE)/ZnO for improving their AC conductivity and oil removal

Sharshir

Fayek

El-Gawad

et al. 2022

Sci Rep

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“…For PANi/CWO nanocomposite, Figure 3 shows the characteristic FTIR peaks located at 1260, 1112, and 826 cm −1 correspond to the stretching vibrations of C=C of the benzenoid and quinonoid rings 54 . The FTIR peaks are located at 1926 and 1790 cm −1 because of the mono‐substitution of the benzenoid ring; this means that almost all the aniline monomers were converted to polyaniline in a high yield 55 . The FTIR peak located at 3387 cm −1 is responsible for hydrogen bonds via NH in aniline molecules and OH in CWO molecules.…”

Section: Resultsmentioning

confidence: 99%

“…54 The FTIR peaks are located at 1926 and 1790 cm À1 because of the monosubstitution of the benzenoid ring; this means that almost all the aniline monomers were converted to polyaniline in a high yield. 55 The FTIR peak located at 3387 cm À1 is responsible for hydrogen bonds via NH in aniline molecules and OH in CWO molecules. These results suggest the stacking of CWO onto the surface of PANi through intermolecular hydrogen bonds and electrostatic interaction.…”

Section: Bach Studymentioning

confidence: 99%

Gamma radiation‐induced synthesis of polyaniline/CuWO₄ nanocomposite for potential sorption of cobalt‐60 and cesium‐137 from aqueous solutions

Abdel Maksoud,

Ghobashy,

Aly

et al. 2024

Applied Organom Chemis

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The release of cobalt‐60 and cesium‐137 in the environment is considered dangerous pollutants. In this concern, the present work deals with gamma radiation‐induced synthesis of novel polyaniline/CuWO4 (PANi/CWO) nanocomposite adsorbent and estimating its potential adsorption capacity for cobalt‐60 and cesium‐137 from aqueous solution. The crystallite size of pure CWO NPs and PANi/CWO nanocomposite is found in the nanoscale range. Also, SEM images and XRD results confirmed the successful preparation of PANi/CWO nanocomposite. Further, the elemental mapping images proved that all the investigated elements were homogeneously distributed over the PANi/CWO nanocomposite. Besides, the adsorption experiments were conducted separately to investigate the adsorption behavior of cobalt‐60 and cesium‐137 by PANi/CWO nanocomposite. Adsorption processes have also been performed, and numerous factors, including medium pH, contact time, initial metal ion concentration, and temperature, have been tested. Batch experiments were done to get the optimum conditions for removing cobalt‐60 and cesium‐137. Four kinetic models were investigated, indicating that the adsorption process of cobalt‐60 and cesium‐137 onto PANi/CWO nanocomposite is controlled by chemisorption and intra‐particle diffusion. Four equilibrium isotherm models were investigated, revealing that the adsorption process is a monolayer and multilayer process on a heterogeneous surface. The (∆Ho) value suggested that this study's removal of cesium and cobalt has an endothermic behavior, whereas the positive (∆So) value proved that the examined system is random. The effect of temperature was investigated, and the calculated thermodynamic parameters indicated that the removal of cobalt‐60 and cesium‐137 by PANi/CWO nanocomposite has an endothermic behavior.

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“…During the intervals between polymerization, the positively charged group [EMIM] + is situated over the nitrogen atom between benzene rings. During electrostatic attraction, the doped aprotic cation draws the electron duplet of PANI N and the electron cloud of p-π conjugation is polarized and distorted [19,22,23], which transforms the electronwithdrawing effect of PANI and leads the electron conduction.…”

Section: Resultsmentioning

confidence: 99%

n-type polyaniline hole-blocking layer for high-efficiency QDSC by one-pot electropolymerization and selective aprotic cation ([EMIM]⁺) doping

Jiang²,

Yao³

2020

Nanotechnology

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In the field of clean solar-to-current devices, the photoelectron transfer process is essential for photovoltaic conversion in the typical n-i-p solar-cell structure. With regard to the oriented injection and ejection of photoelectrons, the development of hole-blocking layer (HBL) materials with a high electron transfer capability are exceedingly desirable. Profiting from the distortion of the p-π electron cloud attracted by a doped aprotic cation, a modified n-type polyaniline (PANI) as the HBL of a photoanode has been successfully fabricated through a facial one-pot square-wave potentiostatic electropolymerization method. In terms of flat-band potential, charge-carrier concentration and device impedance, the synthesized n-type polyaniline layer doped by aprotic ionic liquid (AIL; [EMIM] [EtSO4]) (AIL–PA layer) for quantum dot solar cells (QDSCs) directly facilitates the high electron carrying capacity as well as the electron transfer driving force. Furthermore, the n-type polyaniline layer doped by AIL ([EMIM] [EtSO4]) (AIL–PA layer) has a widely matching band gap for electron exportation and improved photovoltaic performance of CdSxSe1-x QDSCs: the power conversion efficiency is 10.5% and the Jsc is 21.59 mA cm−2 for the device with an AIL-PA HBL. The electron diffusion length LD is 8.07 μm for the photoanode with AIL-PA I and 7.58 μm for the photoanode with AIL-PA II.

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Radiation-induced nucleation and pH-controlled nanostructure shape of polyaniline dispersed in DMF

Cited by 16 publications

References 39 publications

Impact of γ-irradiation and SBR content in the compatibility of aminated (PVC/LLDPE)/ZnO for improving their AC conductivity and oil removal

Impact of γ-irradiation and SBR content in the compatibility of aminated (PVC/LLDPE)/ZnO for improving their AC conductivity and oil removal

Gamma radiation‐induced synthesis of polyaniline/CuWO₄ nanocomposite for potential sorption of cobalt‐60 and cesium‐137 from aqueous solutions

n-type polyaniline hole-blocking layer for high-efficiency QDSC by one-pot electropolymerization and selective aprotic cation ([EMIM]⁺) doping

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Radiation-induced nucleation and pH-controlled nanostructure shape of polyaniline dispersed in DMF

Cited by 16 publications

References 39 publications

Impact of γ-irradiation and SBR content in the compatibility of aminated (PVC/LLDPE)/ZnO for improving their AC conductivity and oil removal

Impact of γ-irradiation and SBR content in the compatibility of aminated (PVC/LLDPE)/ZnO for improving their AC conductivity and oil removal

Gamma radiation‐induced synthesis of polyaniline/CuWO4 nanocomposite for potential sorption of cobalt‐60 and cesium‐137 from aqueous solutions

n-type polyaniline hole-blocking layer for high-efficiency QDSC by one-pot electropolymerization and selective aprotic cation ([EMIM]+) doping

Contact Info

Product

Resources

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Gamma radiation‐induced synthesis of polyaniline/CuWO₄ nanocomposite for potential sorption of cobalt‐60 and cesium‐137 from aqueous solutions

n-type polyaniline hole-blocking layer for high-efficiency QDSC by one-pot electropolymerization and selective aprotic cation ([EMIM]⁺) doping