Hierarchical composite polyaniline-(electrospun polystyrene) fibers applied to heavy metal remediation

ACS Applied Materials & Interfaces
José J Alcaraz-EspinozaC P de Melo

Abstract

We describe the in situ preparation of a multipurpose hierarchical polyaniline-polystyrene (PANI-PS) composite based in the chemical polymerization of PANI on nonwoven (NW) electrospun PS mats. We performed a detailed study of the properties of these materials to select the best strategies to incorporate PANI chains into pristine NW PS mats without compromising the original porosity and mechanical flexibility of the matrices. The resulting composites presented nanostructured PANI chains highly dispersed in the interior of the NW PS mat and showed good electrical properties and surface-wetting characteristics that could be easily controlled. In particular, we show that these NW PANI-PS mats exhibit interesting properties in their interaction with heavy metal ions. For instance, their high adsorption capacities toward dispersed Hg(II), Cd(II), Pb(II), Cr(VI), and Cu(II) ions make them promising materials for water remediation, by providing a simple manner of collecting and removing these metals from aqueous systems. In fact, the NW electrospun mats here presented do not suffer from the usual limitations found in materials commonly employed as adsorbents, such as a tendency to agglomerate or accumulate in the environment because o...Continue Reading

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Citations

Feb 2, 2016·Journal of the American Chemical Society·Lijiao MaMercouri G Kanatzidis
Jan 26, 2017·ACS Applied Materials & Interfaces·Tianzhu ZhouWenmei Han
Jan 8, 2018·Environmental Science and Pollution Research International·Yilin JiangQingyun He
Nov 21, 2019·Environmental Science and Pollution Research International·Rama Al-Qassar Bani Al-MarjehYazan Badour
May 13, 2020·Materials·Cristina Della PinaErmelinda Falletta
Aug 9, 2021·Talanta·Maurício F de AguiarKleber G B Alves
Mar 26, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Yuan DongQinghua Lu
Oct 15, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Yan XiongRun Zhang
Aug 9, 2017·ACS Applied Materials & Interfaces·Ali JawadZhuqi Chen

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