Preparation and characterization of polyaniline‐DBSNa/Fe<sub>2</sub>O<sub>3</sub> and polyaniline‐DBSNa/CoO nanocomposites using surfactive dopant sodium dodecylbenzenesulfonate (DBSNa)

Self Cite

Polypyrrole and its nanocomposites were obtained by chemical polymerization by using anhydrous ferric chloride as an oxidant in the presence of dodecylbenzensulfonate and poly(vinyl alchohol) as surfactants and iron (III) oxide nanoparticles in aqueous media. The products were characterized, such as morphology, chemical structure, and crystalline nature, by using analysis by scanning electron microscope, Fouriertransform infrared spectrometry, and X-ray diffraction. The results indicated that sodium dodecylbenzenesulfonate, poly(vinyl alcohol), and Fe 2 O 3 nanoparticles influenced the properties of products. Scanning electron microscope analysis results indicated that when additives were added to the pyrrole matrix, the size of the product decreased and homogeneity increased. Fourier-transform infrared spectrometry confirmed that nanocomposites formed in the presence of surfactant. X-ray diffraction pattern analysis confirmed the presence of Fe 2 O 3 nanoparticles in the nanocomposite matrix. J. VINYL ADDIT. TECHNOL., 22:362-367, 2016. V C 2014 Society of Plastics Engineers EXPERIMENTAL InstrumentationA magnetic mixer, OHAUS, Model PA214, digital scale, IKA, Model RO 10P, scanning electron microscope (SEM), Model KYKY-EM3200, X-ray diffraction (XRD),

Section: Resultsmentioning

confidence: 99%

Preparation and characterization of polypyrrole nanocomposites by using various surfactants and Fe₂O₃ nanoparticles in aqueous media

Ahmad

Gangaraj

Eisazadeh

et al. 2014

Self Cite

“…The bands of the CAH and NAH in-plane deformation vibrations are situated at 1034 cm 21 . The absorptions at 777 and 670 cm 21 are related to the CAH outer bending vibrations [39][40][41]. These results indicate the presence of PAn in the composite.…”

Section: Characteristics Of Fe 3 O 4 /Panmentioning

confidence: 99%

Synthesis of Fe₃O₄/polyaniline nanocomposite and its application for nitrate removal from aqueous solutions

Katal

Pourkarimi

Bahmani

et al. 2013

The aim of this work was to investigate the sorption characteristics of Fe3O4 coated on polyaniline (Fe3O4/PAn) for the removal of NO3− ions from aqueous solutions. The sorption of NO3− ions by the batch method was carried out. The optimum conditions of sorption were found to be a Fe3O4/PAn dose of 0.4 g in 100 mL of NO3− solution, a contact time of 10 min, pH and temperature 7 and 40°C, respectively. Temperature had a negative effect on the removal efficiency. Three equations, i.e., Morris–Weber, Lagergren, and pseudo‐second‐order, were tested to track the kinetics of the removal process. The Langmuir, Freundlich, and Dubinin–Radushkevich isotherm models were subjected to sorption data in order to estimate sorption capacity, intensity, and energy. The thermodynamic parameters ΔH, ΔS, and ΔG were evaluated. They showed that the adsorption of NO3− onto Fe3O4/PAn was feasible, spontaneous, and exothermic under the studied conditions. It can be concluded that Fe3O4/PAn has potential to remove NO3− ions from aqueous solutions at different concentrations. The system Fe3O4/Pan was successfully tested for a high removal efficiency of NO3− from urban wastewater. J. VINYL ADDIT. TECHNOL., 19:147–156, 2013. © 2013 Society of Plastics Engineers

“…In the recent years, different types of polymers, polymer composites, and nanocomposites have been used as adsorbents for heavy metals . Conductive polymers such as polyacetylene, polyaniline, polypyrrole, and polythiophene have attracted a wide range research interest in various applications such as rechargeable batteries , electromagnetic shielding, gas sensors, and removal of heavy metals as ion‐exchanger. To be more specific, polyaniline (PANI) has attracted considerable attention in numerous potential applications because of its unique electrical and optical properties .…”

Section: Introductionmentioning

confidence: 99%

Adsorption study of Pb(II) in aqueous medium using polyaniline nanocomposites

Madi

Bhadra

Al‐Thani

et al. 2016

This research work presents a simple and effective way for preparation of polyaniline (PANI) nanofiber composites mixed with polyvinyl alcohol or polystyrene (PS) and their application for lead (Pb) removal from an aqueous medium. Interestingly, PANI/PS porous nanofibers show excellent performance as a one-step Pb removal technique from aqueous solutions. The efficiency of Pb removal is found to be more than 95%, which is pretty higher than the previously reported values of other nanocomposites, as Pb removal adsorbents. Furthermore, when pure PANI nanofibers cannot remove Pb in an efficient way, this is a straightforward method for separation from the solution. This is attributable to the high surface area of PANI-PS composites. This study also provides a simple and effective way for the development of new environmental cleaning materials. The PANI/PS composite nanofiber could be a good candidate for efficient Pb removal from wastewater and for deep purification of polluted water. The composite materials have been investigated in terms of morphology, chemical structure, thermal behavior, and defect evolution using Scanning Electron Microscopy, Fourier Transform Infrared Spectroscopy, Differential Scanning Calorimetry, Thermal Gravimetric Analysis, and Positron Annihilation Spectroscopy, respectively. To measure the adsorption capacity and intensity of adsorption, the adsorption data were fitted in Langmuir, and Freundlich models. J. VINYL ADDIT.