Microwave‐Assisted Synthesis of ZnO Nanoparticles: Phase Transfer to Water
Herein, a simple one‐pot procedure is reported to obtain aqueous zinc oxide (ZnO) nanoparticle dispersions from ZnO nanoparticles dispersed in cyclohexane. In the process, polyoxyethylene (20) sorbitan monooleate (polysorbate 80, Tween 80) functions as a phase transfer agent and colloidal stabilizer. The particles grow in a defined manner during the transfer, presumably via coalescence. The final particle radii are tuneable in the range from 2.3 ± 0.1 nm to 5.7 ± 0.1 nm depending on the incubation time of the dispersion at 90 °C. Small‐angle X‐ray scattering is employed to determine the particle radius distributions before and after phase transfer. The larger ZnO particle radii are associated with a redshift of the optical bandgap and luminescence emission, as expected for semiconductor nanoparticles. The particles presented here exhibit a relative size distribution width of 20%, rendering them attractive for applications in, e.g., biology or catalysis. The latter application is demonstrated at the photocatalytic degradation of methylene blue dye.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Microwave‐Assisted Synthesis of ZnO Nanoparticles: Phase Transfer to Water ; volume:24 ; number:6 ; year:2022 ; extent:7
Advanced engineering materials ; 24, Heft 6 (2022) (gesamt 7)
- Urheber
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Saloga, Patrick E. J.
Rybak, Tina
Thünemann, Andreas F.
- DOI
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10.1002/adem.202101276
- URN
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urn:nbn:de:101:1-2022062115213195821320
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:34 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Saloga, Patrick E. J.
- Rybak, Tina
- Thünemann, Andreas F.
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