New Poly(aniline-co-o-phenylenediamine)/Kaolinite Microcomposites for Water Decontamination

Al-Hussaini, Ayman S.; Elias, Ahmed M.; El‐Ghaffar, M. A. Abd

doi:10.1007/s10924-016-0782-7

Cited by 32 publications

(9 citation statements)

References 55 publications

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“…. These spectra of both PAPDA‐I and TiO 2 @PAPDA‐II to TiO 2 @PAPDA‐VI show main absorptions at 1622–1626 and 1593–1594 cm −1 which are attributed to the C=C vibrations of the quinoid and benzenoid units, respectively . The proportion of quinoid units is fundamentally less than the proportion of benzenoid units in both PAPDA‐I and TiO 2 @PAPDA‐II to TiO 2 @PAPDA‐VI.…”

Section: Resultsmentioning

confidence: 95%

“…New developments in polymeric composites and nanocomposites are steadily growing and these products are among the largest potential material categories, which can deal with various challenges generated from the market . The composites and nanocomposites are quite often less expensive, lighter or stronger compared to traditional materials, but the demands and needs become more diverse and complex.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of core–shell nanocomposites with enhanced photocatalytic efficacy

Al-Hussaini

Eltabie

Hassan

2018

Polymer International

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The current study establishes the unprecedented involvement in the evolution and production of novel core-shell nanocomposites composed of nanosized titanium dioxide and aniline-o-phenylenediamine copolymer. TiO 2 @copoly(aniline and o-phenylenediamine) (TiO 2 @PANI-o-PDA) core-shell nanocomposites were chemically synthesized in a molar ratio of 5:1 of the particular monomers and several weights of nano-TiO 2 via oxidative copolymerization. The construction of the TiO 2 @PANI-o-PDA core-shell nanocomposites was ascertained from Fourier transform IR spectroscopy, UV-visible spectroscopy and XRD. A reasonable thermal behavior for the original copolymer and the TiO 2 @PANI-o-PDA core-shell nanocomposites was investigated. The bare PANI-o-PDA copolymer was thermally less stable than the TiO 2 @PANI-o-PDA nanocomposites. The core-shell feature of the nanocomposites was found to have core and shell sizes of 17 nm and 19-26 nm, respectively. In addition, it was found that the addition of a high ratio of TiO 2 nanoparticles increases the electrical conductivity and consequently lowers the electrical resistivity of the TiO 2 @PANI-o-PDA core-shell nanocomposites. The hybrid photocatalysts exhibit a dramatic photocatalytic efficacy of methylene blue degradation under solar light irradiation. A plausible interpretation of the photocatalytic degradation results of methylene blue is also demonstrated. Our setup introduces a facile, inexpensive, unique and efficient technique for developing new core-shell nanomaterials with various required functionalities and colloidal stabilities.

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Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Fabrication of core–shell nanocomposites with enhanced photocatalytic efficacy

Al-Hussaini

Eltabie

Hassan

2018

Polymer International

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“…Various new polymers [4,5] and copolymer/bentonite [6][7][8][9][10], copolymer/kaolinite [11][12][13], copolymer/pyrogenic silica [14], terpolymer/ bentonite [15,16], terpolymer/kaolinite [17,18] composites have been reported. 3rOne of the composites types is core-shell polymers (CSPs).…”

Section: Discussionmentioning

confidence: 99%

Polymer Composite Materials from Current Status to Future Prospects

Al-Hussaini

2020

AJOP

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A call for novel material, new ideas, applications, and techniques are still and will be challenging all the time. The increased development of science and modern technology allows one to use a high-throughput search for novel materials that could give positive feedback in different areas of life. With increasing demand for high performance materials, the focus of recent researches has been to produce products with enhanced properties at minimal changes in the equipment, process and cost of inputs. The addition of clay minerals or nano-metal oxides to the polymers is to improve the polymer properties, their wide and demand characteristics or desired potential applications by producing the polymer nanocomposites. Scanning and transmission electron microscopy have led to a deeper understanding of polymer nanocomposites, a better account surface topology, structure and morphology.

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“…On the other hand, the FT-IR spectrum of pure PANI displays the following bands: NH stretching vibration of secondary amine overlapped with the free and hydrogen bonded NH at 3440 cm −1 , C-H bending of benzenoid ring at 2890 cm −1 , C=C vibrations of quinoid units, quinoid ring-stretching at 1500 cm −1 , bending of CH in CH 2 at 1452 cm −1 , N-H bending mode at 1400 cm −1 , CN stretching in benzene and quinoid rings at 1305 cm −1 , CH bending at 1250 cm −1 and 1000 cm −1 , C-H in-the-plane at 1130 cm −1 , electronic transition of electrons in PANI structure at 1100 cm −1 , C-H in-plane bending at 1000 cm −1 , and the CH deformation of 1,4-disubstituted ring/Q ring at 826 cm −1 [89,[100][101][102][103]. The spectra of electrodeposited PANI/MWCNTs showed an increase in the intensity in the bands of the functional groups that they have in common; one example is the overlap of OH in carboxylic groups adhered to the surface of CNTs as well as the NH stretching in the CN bands.…”

Section: Chemical Analysis Of Electrochemical Ppy/mwcnts Pani/mwcnts Compositesmentioning

confidence: 99%

CVD Conditions for MWCNTs Production and Their Effects on the Optical and Electrical Properties of PPy/MWCNTs, PANI/MWCNTs Nanocomposites by In Situ Electropolymerization

et al. 2021

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In this work, the optimal conditions of synthesizing and purifying carbon nanotubes (CNTs) from ferrocene were selected at the first stage, where decomposition time, argon fluxes, precursor amounts, decomposition temperature (at 1023 K and 1123 K), and purification process (HNO3 + H2SO4 or HCl + H2O2), were modulated through chemical vapor deposition (CVD) and compared to commercial CNTs. The processing temperature at 1123 K and the treatment with HCl + H2O2 were key parameters influencing the purity, crystallinity, stability, and optical/electrical properties of bamboo-like morphology CNTs. Selected multiwalled CNTs (MWCNTs), from 1 to 20 wt%, were electropolymerized through in-situ polarization with conductive polymers (CPs), poly(aniline) (PANI) and poly(pyrrole) (PPy), for obtaining composites. In terms of structural stability and electrical properties, MWCNTs obtained by CVD were found to be better than commercial ones for producing CPs composites. The CNTs addition in both polymeric matrixes was of 6.5 wt%. In both systems, crystallinity degree, related to the alignment of PC chains on MWCNTs surface, was improved. Electrical conductivity, in terms of the carrier density and mobility, was adequately enhanced with CVD CNTs, which were even better than the evaluated commercial CNTs. The findings of this study demonstrate that synergistic effects among the hydrogen bonds, stability, and conductivity are better in PANI/MWCNTs than in PPy/MWCNTs composites, which open a promissory route to prepare materials for different technological applications.

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New Poly(aniline-co-o-phenylenediamine)/Kaolinite Microcomposites for Water Decontamination

Cited by 32 publications

References 55 publications

Fabrication of core–shell nanocomposites with enhanced photocatalytic efficacy

Fabrication of core–shell nanocomposites with enhanced photocatalytic efficacy

Polymer Composite Materials from Current Status to Future Prospects

CVD Conditions for MWCNTs Production and Their Effects on the Optical and Electrical Properties of PPy/MWCNTs, PANI/MWCNTs Nanocomposites by In Situ Electropolymerization

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