Preparation and characterization of polyaniline containing Fe₃O₄ nanoparticles using sodium dodecylbenzenesulfonate as a surfactant

Abstract

Magnetic and conducting polyaniline (PAn)/Fe3O4 nanoparticles were prepared in the aqueous solution by using sodium dodecylbenzenesulfonate (DBSNa) as a surfactant. The chemical structure and surface morphology of PAn/Fe3O4 nanoparticles were characterized by Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscope. The conductivity of the composites was measured as a function of the Fe 3O4 content of the reaction solution. The magnetic properties of the resulting composites showed superparamagnetic behavior, such as saturated magnetization ( Ms = 1.8 emu g- 1), remnant magnetization ( Mr = 0), and coercive force ( Hc = 0). The nanometer size (about 14 nm) Fe3O4 in the composites causes of the superparamagnetic behavior of the product.

Equilibrium Studies in Adsorption of Hg(II) from Aqueous Solutions using Biocompatible Polymeric Polypyrrole-Chitosan Nanocomposite

“…Since the discovery of conducting polymers three decades ago, a large volume of research work has been performed associated with the physics and chemistry of conducting polymers. Among the conducting polymers PPy and PAn are the most environmentally stable known conducting polymer and also one of the most commonly investigated conducting polymer due to its high electrical conductivity, nontoxicity, good environmental stability, biocompatibility, simple synthesis, and low cost (17,18). Conducting polymers found applications in various fields such as microelectronics, composite materials, optics and biosensors, neuroprosthetic devices, drug delivery devices, actuators, biosensors, and as adsorbent (19,20).…”

Synthesis and Characterization of Polyaniline/Magnetite Nanocomposite

“…Composites conductivity decreased as a function of Fe3O4 content, producing values of 2.7 * 10 -5 and 3.4 * 10 -6 S cm -1 , respectively, for loadings of 1 and 5 g L -1 of magnetite. Composite magnetic properties showed superparamagnetic behavior, such as saturated magnetization (Ms = 1.8 emu g -1 ), remnant magnetization (Mr = 0), and coercive force (Hc = 0) [21]. Recently, application of polyaniline/Fe3O4 composites in liquefied petroleum gas sensing [22], heavy-metal ion absorption [23], or microwave absorption [24] demonstrate the scientific interest for these materials and stimulates the exploration of new strategies of synthesis and new applications for future technologies.…”

Ring-opening polymerization of caprolactone using novel polyaniline salt catalyst

“…That is; great promise for commercial applications in supercapacitor , microwave absorption , catalyst , and sensors . Mostly conducting polymer‐Fe 3 O 4 composites have been synthesized by polymerizing a monomer in the presence of Fe 3 O 4 nano particles . Wan et al have studied ferromagnetic and electrical behavior of polypyrrole‐Fe 3 O 4 by polymerizing pyrrole in the presence of p ‐dodecylbenzene sulfonic acid sodium salt using FeCl 3 /FeCl 2 as oxidant and the iron at high temperatures .…”