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Ultralight magnetic aerogels from Janus emulsions

  • Magnetite containing aerogels were synthesized by freeze-drying olive oil/silicone oil-based Janus emulsion gels containing gelatin and sodium carboxymethylcellulose (NaCMC). The magnetite nanoparticles dispersed in olive oil are processed into the gel and remain in the macroporous aerogel after removing the oil components. The coexistence of macropores from the Janus droplets and mesopores from freeze-drying of the hydrogels in combination with the magnetic properties offer a special hierarchical pore structure, which is of relevance for smart supercapacitors, biosensors, and spilled oil sorption and separation. The morphology of the final structure was investigated in dependence on initial compositions. More hydrophobic aerogels with magnetic responsiveness were synthesized by bisacrylamide-crosslinking of the hydrogel. The crosslinked aerogels can be successfully used in magnetically responsive clean up experiments of the cationic dye methylene blue.

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Metadaten
Author details:Rajarshi Roy RajuORCiDGND, Ferenc LiebigGND, Bastian KlemkeORCiD, Joachim KoetzORCiDGND
URN:urn:nbn:de:kobv:517-opus4-445522
DOI:https://doi.org/10.25932/publishup-44552
Title of parent work (German):Postprints der Universität Potsdam : Mathematisch Naturwissenschaftliche Reihe
Publication series (Volume number):Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (828)
Publication type:Postprint
Language:English
Date of first publication:2020/03/03
Publication year:2020
Publishing institution:Universität Potsdam
Release date:2020/03/03
Issue:828
Number of pages:10
Source:RSC Advances 10 (2020) 13, 7492-7499 DOI: 10.1039/c9ra10247g
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät
DDC classification:5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften
Peer review:Referiert
Publishing method:Open Access
License (English):License LogoCreative Commons - Namensnennung 3.0 Unported
External remark:Bibliographieeintrag der Originalveröffentlichung/Quelle
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