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Biogenic calcite particles from microalgae-Coccoliths as a potential raw material

Jakob, Ioanna 1; Chairopoulou, Makrina Artemis; Vučak, Marijan; Posten, Clemens 1; Teipel, Ulrich
1 Institut für Bio- und Lebensmitteltechnik (BLT), Karlsruher Institut für Technologie (KIT)

Abstract:

Synthetic calcite (CaCO3) particles are found in a broad range of applications. The geometry of particles produced from limestone or precipitation are versatile but limited to basic shapes. The microalga Emiliania huxleyi produces micro-structured calcite platelets, called coccoliths. This article presents the results of an application-orientated study, which includes characteristic values also used in the calcite industry for particle evaluation. It is demonstrated that coccoliths are significantly different from all industrial particles produced so far. Coccoliths are porous particles, mainly consisted of calcium carbonate, with further elements such as Mg, Si, Sr, and Fe often embedded in their structure. Their structure is extremely sophisticated, while the overall particle morphology and particle size distribution are homogeneous. This study gives a first inside into the potential of these exceptional objects and may set further impulses for their utilization in specific calcite particle applications.


Verlagsausgabe §
DOI: 10.5445/IR/1000068588
Veröffentlicht am 19.11.2018
Originalveröffentlichung
DOI: 10.1002/elsc.201600183
Scopus
Zitationen: 21
Web of Science
Zitationen: 16
Dimensions
Zitationen: 20
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Bio- und Lebensmitteltechnik (BLT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2017
Sprache Englisch
Identifikator ISSN: 1618-0240, 1618-2863
urn:nbn:de:swb:90-685883
KITopen-ID: 1000068588
HGF-Programm 35.13 (POF III, LK 01) Biomasse für chemische Energieträger
Erschienen in Engineering in life sciences
Verlag John Wiley and Sons
Band 17
Heft 6
Seiten 605-612
Schlagwörter Biogenic calcium carbonate, Bio-inspired materials, Coccoliths production, Emiliania huxleyi
Nachgewiesen in Scopus
Dimensions
Web of Science
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