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  4. Characterization of functionalized zirconia membranes manufactured by aqueous tape casting
 
Zitierlink DOI
10.26092/elib/2599
Verlagslink DOI
10.1016/j.ceramint.2020.03.162

Characterization of functionalized zirconia membranes manufactured by aqueous tape casting

Veröffentlichungsdatum
2020-05-13
Autoren
da Silva, Bernardo A.  
de Souza Godim de Oliveira, Vinicius  
Di Luccio, Marco  
Hotza, Dachamir  
Rezwan, Kurosch  
Wilhelm, Michaela  
Zusammenfassung
In this study, porous zirconia membranes were developed by aqueous tape casting. The influence of poly (methyl methacrylate) (PMMA) as a pore former, and sintering temperatures (1300, 1400, and 1500 °C) on open porosity and pore size was investigated. The rheological behaviour of the suspensions was measured. The slurries showed pseudoplastic behavior, which is desirable for tape casting. Functionalization with an amino silane precursor (3- aminopropyl triethoxysilane, APTES) was carried out to increase the hydrophilic properties of the membranes. The functionalized samples were characterized by SEM-EDX to identify the moieties attached to the surface. Membranes with open porosity ranging from 27% to 51% and average pore sizes from 0.2 to 1.4 μm were obtained. Samples sintered at 1400 °C with added pore former yielded the highest water flux, 257 Lm−2h−1, which increased to 642 Lm−2h−1 after functionalization. Membranes with tailored porosity and pore size obtained in this study are indicated for applications involving separation processes, especially for microfiltration systems.
Schlagwörter
Aqueous tape casting

; 

Amino functionalization

; 

Permeability

; 

Zirconia membrane
Verlag
Elsevier {BV}
Institution
Universität Bremen  
Fachbereich
Fachbereich 04: Produktionstechnik, Maschinenbau & Verfahrenstechnik (FB 04)  
Institute
Fachgebiet 17: Keramische Werkstoffe und Bauteile  
Dokumenttyp
Artikel/Aufsatz
Zeitschrift/Sammelwerk
Ceramics International  
Band
46
Heft
10
Startseite
16096
Endseite
16103
Seitenzahl
8
Zweitveröffentlichung
Ja
Dokumentversion
Postprint
Lizenz
https://creativecommons.org/licenses/by-nc-nd/4.0/
Sprache
Englisch
Dateien
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Vorschaubild
Name

DA SILVA - Characterization of functionalized zirconia membranes.pdf

Size

3.14 MB

Format

Adobe PDF

Checksum

(MD5):07caa5f194b2d4b383245c7bde617b7a

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