Synthesis and Characterization of Nano-Conducting Copolymer Composites: Efficient Sorbents for Organic Pollutants

Emran, Khadijah M.; Ali, Shimaa M.; Al-Oufi, Aishah L.L.

doi:10.3390/molecules22050772

Cited by 14 publications

(6 citation statements)

References 43 publications

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“…In addition to a broadband in the range from 3000 cm −1 to 3500 cm −1 (the adsorbed H 2 O and N-H of the pyrrole ring) [ 64 ]. X-ray diffraction spectra have shown that pure polypyrrole is amorphous with a broad peak centered at around 2θ = 24.84° [ 65 ]. Furthermore, the appearance of peaks at 32.68°, 36.76°, and 38.32° [JCPDS: 30-0751] confirmed the presence of LiClO 4 inside the hPPy film [ 66 ].…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Hollow Nanocones Membrane with an Extraordinary Surface Area as CO2 Sucker

et al. 2022

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Recently, more and more attention has been paid to the development of eco-friendly solid sorbents that are cost-effective, noncorrosive, have a high gas capacity, and have low renewable energy for CO2 capture. Here, we claimed the fabrication of a three-dimensional (3D) film of hollow nanocones with a large surface area (949.5 m2/g), a large contact angle of 136.3°, and high surface energy. The synthetic technique is based on an electrochemical polymerization process followed by a novel and simple strategy for pulling off the formed layers as a membrane. Although the polymer-coated substrates were reported previously, the membrane formation has not been reported elsewhere. The detachable capability of the manufactured layer as a membrane braked the previous boundaries and allows the membrane’s uses in a wide range of applications. This 3D hollow nanocones membrane offer advantages over conventional ones in that they combine a π-electron-rich (aromatic ring), hydrophobicity, a large surface area, multiple amino groups, and a large pore volume. These substantial features are vital for CO2 capturing and storage. Furthermore, the hydrophobicity characteristic and application of the formed polymer as a CO2 sucker were investigated. These results demonstrated the potential of the synthesized 3D hollow polymer to be used for CO2 capturing with a gas capacity of about 68 mg/g and regeneration ability without the need for heat up.

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Section: Resultsmentioning

confidence: 99%

Fabrication of Hollow Nanocones Membrane with an Extraordinary Surface Area as CO2 Sucker

et al. 2022

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“…Various aniline (ANI)‐based copolymers have been reported in the literature. For example, ANI has been copolymerized with orthanilic acid, o ‐phenylenediamine, 2‐aminoterephthalic acid, tetrafluoroaniline, 3‐aminophenol, fluorene, xylidine, N ‐vinyl carbazole, caprolactone, 2‐aminobenzoic acid, pyrrole, dithipen‐2‐yl‐aniline, o ‐tluidine, p ‐phenylenediamine, and thymol blue (TB) . In a thorough literature survey, we did not found any report on copolymers containing azo dyes, particularly, Congo red (CR).…”

Section: Introductionmentioning

confidence: 87%

Synthesis, spectral analysis, and catalytic activity of poly(aniline‐co‐congored)–metal oxide nanocomposites

Ponprapakaran¹,

Subramani²,

Baskaran³

et al. 2018

J of Applied Polymer Sci

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Electrically conducting, water‐soluble fluorescent copolymer nanocomposites were synthesized by a solution polymerization method under different experimental conditions in the presence of CuO and V2O5 nanoparticles. The prepared copolymer nanocomposites were characterized with analytical tools, including Fourier transform infrared spectroscopy, ultraviolet–visible (UV–vis) spectroscopy, and fluorescence emission spectroscopy. The order of copolymerization was determined on the basis of the UV–vis absorption spectra and fluorescence emission spectra. The copolymer–CuO nanocomposite system exhibited the highest electrical conductivity. The scanning electron microscopy image showed the presence of more CuO nanoparticles on the surface of the copolymer. Furthermore, the catalytic activity of the copolymer nanocomposites was tested for the reduction of p‐nitrophenol. All three types of polymer systems exhibited almost the same apparent rate constant values. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46469.

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“…The C-N = stretching vibration between benzenoid and quinoid units in CrossPANI/P-AC(1:0) is responsible for the peak at 1384.22 cm -1 [84,86]. The band at ~ 1291.33, 1294.13 cm −1 and ~ 820.81, 814.95 cm -1 , respectively, can be assigned for the stretching of C-N and bending of C-H (out of plane) in the benzene ring [87]. The peaks at ~ 1054.59 and 1060.50 cm -1 are related to the S = O and S-O stretching vibrations of the sulfonate groups linked to the aromatic rings, indicating that the produced PANI nanostructures were doped [84].…”

Section: Ftir Analysismentioning

confidence: 96%

Composite fabrication and characterization of crosslinked polyaniline/Pterocladia capillacea-activated carbon for adsorption of direct blue-86 dye from water

et al. 2022

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The fabrication of crosslinked polyaniline/Pterocladia capillacea-activated carbon composite (CrossPANI/P-AC) at different ratios (1:0, 1:0.2, 1:0.6, and 1:1) was studied. CrossPANI/P-AC composites were fabricated by the in situ polymerization of aniline using hydrogen chloride as an acidic dopant, and ammonium persulfate as initiator, while Pterocladia capillacea-activated carbon was synthesized by the chemical activation method and incorporated into the polymer matrix. The samples were characterized by the terms such as Fourier transform infrared (FTIR) spectroscopy, Brunauer–Emmett–Teller, X-ray diffraction (XRD), thermogravimetric analysis, scanning electron microscopy, and energy-dispersive X-ray spectroscopy (EDX). FTIR spectroscopy showed the main characteristic peak positions of CrossPANI/P-AC; XRD showed low crystallinity of CrossPANI/P-AC. A high specific surface area for CrossPANI/P-AC was achieved at a ratio of 1:0.2 where Brunauer–Emmett–Teller surface area, total pore volume, and mean pore diameter values were 166.10 m2/g, 0.0141 cm3/g, and 3.40 nm, respectively. The capability of CrossPANI/P-AC (1:0.2) composite as adsorbent for Direct blue-86 (DB-86) dye from aqueous solution was investigated. The impact of initial dye concentration, temperature, pH, and contact time on the DB-86 dye adsorption from its water solution was examined. The equilibrium adsorption data were well represented by the Langmuir isotherm achieving maximum monolayer capacity (Qm) of 163.93 mg/g at a dose of 0.5 g/L. In contrast, the kinetic adsorption data were well fit by the pseudo-second-order model. Thermodynamic analysis demonstrated that DB-86 dye adsorption occurs spontaneously, endothermically, and physically in nature. The results demonstrated that these composites effectively removed DB-86 dye from aqueous solutions and could be recycled. Graphical abstract

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Synthesis and Characterization of Nano-Conducting Copolymer Composites: Efficient Sorbents for Organic Pollutants

Cited by 14 publications

References 43 publications

Fabrication of Hollow Nanocones Membrane with an Extraordinary Surface Area as CO2 Sucker

Fabrication of Hollow Nanocones Membrane with an Extraordinary Surface Area as CO2 Sucker

Synthesis, spectral analysis, and catalytic activity of poly(aniline‐co‐congored)–metal oxide nanocomposites

Composite fabrication and characterization of crosslinked polyaniline/Pterocladia capillacea-activated carbon for adsorption of direct blue-86 dye from water

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