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Sustainable Electrospun Affinity Membranes for Water Remediation by Removing Metal and Metal Oxide Nanoparticles

Titelangaben

Müller, Ann-Kathrin ; Xu, Zhi-Kang ; Greiner, Andreas:
Sustainable Electrospun Affinity Membranes for Water Remediation by Removing Metal and Metal Oxide Nanoparticles.
In: ACS Applied Polymer Materials. Bd. 3 (2021) Heft 11 . - S. 5739-5748.
ISSN 2637-6105
DOI: https://doi.org/10.1021/acsapm.1c00990

Angaben zu Projekten

Projekttitel:
Offizieller Projekttitel
Projekt-ID
SFB 1357 Mikroplastik
SFB1357

Projektfinanzierung: Deutsche Forschungsgemeinschaft

Abstract

Nanoparticles (NPs) as part of engineered nanomaterials (ENMs) possess outstanding properties. Thus, they are more frequently integrated into various products resulting in high annual production quantities. The consequence can be the unintentional release into the environment where NPs could accumulate and pose a threat to human health. Therefore, the strong need becomes apparent for the remediation of environmental media. Electrospun nonwovens, which are defined here as membranes, could efficiently remove these released NPs. In this paper, electrospun membranes are utilized to flow filtration of metal and metal oxide NP, such as gold, silver, copper oxide, zinc oxide, iron oxide, and titanium dioxide. The membrane–NP interaction was analyzed and the correlation between NP size, NP ligand, ligand concentration, and the membrane surface functional group was investigated systematically. Finally, a membrane combining two functional groups was designed, which is able to adsorb up to 100% of the filtered NPs. The highest adsorption capacity was provided by AuNPs with 0.14 mg NP/mg membrane. To enhance their lifetime and gain sustainability, the membranes were then regenerated three times by rinsing with low concentrated acids. No significant efficiency loss was recorded, which allowed reusability of the electrospun membranes. We believe that the results shown here are of general relevance for other metals, metal oxides, and microplastic particles as well.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Keywords: electrospun membrane; affinity separation; ligands; metal nanoparticles; membrane regeneration
Institutionen der Universität: Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II
Profilfelder
Profilfelder > Advanced Fields
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Forschungseinrichtungen > Forschungsstellen
Forschungseinrichtungen > Institute in Verbindung mit der Universität > Bayerisches Polymerinstitut (BPI)
Forschungseinrichtungen > Sonderforschungsbereiche, Forschergruppen > SFB 1357 - MIKROPLASTIK
Forschungseinrichtungen > Institute in Verbindung mit der Universität
Forschungseinrichtungen > Sonderforschungsbereiche, Forschergruppen
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften
500 Naturwissenschaften und Mathematik > 530 Physik
500 Naturwissenschaften und Mathematik > 540 Chemie
Eingestellt am: 25 Okt 2021 07:43
Letzte Änderung: 22 Dec 2021 10:01
URI: https://eref.uni-bayreuth.de/id/eprint/67452