Removal of Phenol from Aqueous Solutions by Polymeric Composites Containing Ni and Co Particles

Abstract

Abstract:Magnetic composites have a wide range of potential technological applications; however the evaluation of this material for extraction of phenolic compounds has not been sufficiently studied. Due to its high toxicity and solubility the removal of phenolic compounds from the aquatic environments has critical importance. In this work polymeric composites were prepared by anchoring Ni and Co particles on sulfonatedpoly(styrene-co-divinylbenzene) PS-DVB. The PS-DVB beads were synthesized by suspension polymerization and reacted with acetyl sulfate, aiming to obtain sulfonated copolymers. All materials were capable of removing phenol from aqueous solutions. The phenol adsorption kinetics was influenced by the polymer porosity and swelling capacity in water. The composite derivative of the more porous copolymer impregnated with nickel (C1SNi) was the most efficient in phenol removal, with the sorption equilibrium being established more rapidly than for the other composites. The pseudo second-order model was more adequate to describe the phenol adsorption process for the composite C1SNi. The Langmuir model describes successfully the phenol removal by this composite.

Evaluation of antimicrobial action of silver composite microspheres based on styrene-divinylbenzene copolymer

“…The anchorage of silver particles increased the onset temperature and residual mass of the polymeric matrix, indicating that this anchorage increases the thermal resistance of the sulfonic resin. These results agree with other results of thermal decomposition of nanocomposites, demonstrating that the impregnation of metal particles improves the thermal resistance of the polymeric support [15] .…”

“…Crosslinked copolymer microspheres such as copolymers based on divinylbenzene have been extensively used as supports for chemical catalysts and biocatalysts [8,9] , ion imprinting polymers [10] , and introduction of magnetic particles [11][12][13][14] , adsorbents and absorbents [15,16] and antimicrobial groups [3,5,[17][18][19][20][21][22][23][24][25][26] .…”

Magnetic Cube‐Shaped NiFe2O4 Nanoparticles: An Effective Model Catalyst for Nitro Compound Reduction

“…Transition‐metal‐based magnetic nano‐scale particles have drawn the attention of researchers because of their particular properties such as their high surface area, low toxicity, excellent chemical stability, and biodegradability. As a result of their magnetic properties and biodegradability, they are used in drug delivery, magnetic resonance cell imaging, magnetic hyperthermia, dye adsorption, magnetic separation, wastewater treatment, and heavy‐metal removal . Such magnetic nanoparticles are also applicable as catalysts in industry .…”