Green synthesis of polyaniline/clay/iron ternary nanocomposite by the one step solid state intercalation method

Spectroscopic Study of Polyaniline/AgCl@Ag Nanocomposites Prepared by a One-Step Method

“…e UV-vis spectrum of nanocomposite (Figure 4) shows the existence of three characteristic bands (335 nm, 482 nm, and 563 nm). e bands at 335 nm and 563 nm are the standard polyaniline bands [14,15]. e first is associated with the π-π * electronic transition in the benzenoid segment.…”

“…e particle sizes of AgCl particles ranged from 50 to 300 nm. On the other hand, it can be seen that some tiny Ag nanoparticles of 5-20 nm are anchored on the surface of AgCl nanocubes, and Ag@AgCl clusters are agglomerated on that of PANI forming a spongy structure [14].…”

“…Figure 6 shows the AC conductivity as a function of frequency, and we can observe that the AC conductivity for the formed nanocomposite starts constant and then increases rapidly from a given frequency. is abrupt rise in conductivity is related to the heterogeneity of nanocomposites [14]. is composite material (polymer-metal) is the seat of an intrinsic dipolar polarization, the appearance of mobile charges, and the elaboration of large dipoles on the particles [15].…”

Rheological Properties of Clay Suspensions Treated by Hydrocyclone Process

“…The raw bentonite was collected from Zaghouan deposit (North-Eastern of Tunisia) and the samples were air-dried and crushed by mortar and pestle and sieved through a 60-mesh screen. The selection of this Tunisian deposit was mainly due to its high yield bentonite content and its valorisation for different applications, as reported in previous works (Ayari et al, 2005;Bekri-Abbes and Srasra, 2015). This material was employed, without further purification (no any homoionization or cleaning), for the hydrocyclone treatment or the preparation of the raw bentonite suspensions for rheological measurements.…”

Preparation, characterization and application on dye adsorption of a well-defined two-dimensional superparamagnetic clay/polyaniline/Fe3O4 nanocomposite

“…Reena et al prepared the electromagnetic PANI-polyhydroxy ironclay composites by oxidative radical emulsion polymerization of aniline in the presence of polyhydroxy iron cation intercalated clays (Reena et al, 2010). Bekri-Abbes and Srasra also proposed a facile strategy for fabrication of clay/PANI/iron nanocomposite via the one step solid state intercalation method (Bekri-Abbes and Srasra, 2015), in which both interlayer Fe(III) and atmospheric oxygen act as oxidant for aniline polymerization while Fe(III) and Fe(II) formed by the reduction of Fe(III) favors the formation of iron nanoparticles phase. In addition, we also developed a one-pot process for synthesis of multifunctional superparamagnetic palygorskite/Fe 3 O 4 /PANI for dye adsorption, the Au(III) enrichment and catalyst support using Fe(III) as the oxidant for aniline and the single iron source of Fe 3 O 4 in the presence of palygorskite (Mu and Wang, 2015).…”