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Synthesis of Pure and Fe-Doped TiO2 Nanoparticles via Electrospray-Assisted Flame Spray Pyrolysis for Antimicrobial Applications

Poostforooshan, Jalal; Belbekhouche, Sabrina; Olszok, Vinzent; Stodt, Malte F. B.; Simmler, Mira ORCID iD icon 1; Bierwirth, Malte; Nirschl, Hermann 1; Kiefer, Johannes; Fritsching, Udo; Weber, Alfred P.
1 Institut für Mechanische Verfahrenstechnik und Mechanik (MVM), Karlsruher Institut für Technologie (KIT)

Abstract:

We report a straightforward aerosol-based approach to synthesizing pure and Fe-doped TiO2 nanoparticles by continuous electrospray-assisted flame spray pyrolysis (EAFSP). Initially, pure TiO2 nanoparticles were prepared by electrospraying titanium diisopropoxide bis(acetylacetonate) (TDIP) at varying concentrations onto a grounded flame. In this regard, various in situ (phase Doppler anemometry, high-speed camera, and scanning mobility particle sizer) and ex situ (small-angle X-ray scattering, transmission electron microscopy, and BET adsorption isotherms) diagnostics were applied for the analysis of the in-flight droplet characteristics in the spray, such as droplet μ-explosions, as well as primary and agglomerate nanoparticle evolution within the process and the particulate product. Moreover, single-particle ICP-MS (inductively coupled plasma–mass spectrometry) in situ measurements have been conducted to get insight into the process that causes various particle morphologies and to open up the option of an in situ determination of the particle formation route. Subsequently, the EAFSP method was utilized to produce Fe-doped TiO2 nanoparticles. ... mehr

Zugehörige Institution(en) am KIT Institut für Mechanische Verfahrenstechnik und Mechanik (MVM)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 22.12.2023
Sprache Englisch
Identifikator ISSN: 2574-0970
KITopen-ID: 1000166999
Erschienen in ACS Applied Nano Materials
Verlag American Chemical Society (ACS)
Band 6
Heft 24
Seiten 22660–22672
Vorab online veröffentlicht am 30.11.2023
Schlagwörter electrospray-assisted flame spray pyrolysis, Fe-doped TiO2 nanoparticles, bacteria resistant to antibiotic, spectinomycin-resistant bacteria, μ-explosions
Nachgewiesen in Web of Science
Scopus
Dimensions

Verlagsausgabe §
DOI: 10.5445/IR/1000166999
Veröffentlicht am 09.01.2024
Originalveröffentlichung
DOI: 10.1021/acsanm.3c03107
Scopus
Zitationen: 5
Web of Science
Zitationen: 3
Dimensions
Zitationen: 5
Seitenaufrufe: 97
seit 09.01.2024
Downloads: 29
seit 23.01.2024
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