Stearate-Coated Biogenic Calcium Carbonate from Waste Seashells : A Sustainable Plastic Filler
Waste seashells from aquaculture are a massive source of biogenic calcium carbonate (bCC) that can be a potential substitute for ground calcium carbonate and precipitated calcium carbonate. These last materials find several applications in industry after a surface coating with hydrophobic molecules,...
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ftubkonstanz:oai:kops.uni-konstanz.de:123456789/69909 2024-09-30T14:33:59+00:00 Stearate-Coated Biogenic Calcium Carbonate from Waste Seashells : A Sustainable Plastic Filler Basile, Maria Luisa Triunfo, Carla Gärtner, Stefanie Fermani, Simona Laurenzi, Davide Maoloni, Gabriele Mazzon, Martina Marzadori, Claudio Cölfen, Helmut Falini, Giuseppe 2024 application/pdf http://nbn-resolving.de/urn:nbn:de:bsz:352-2-h7kdevbo0y9v9 https://doi.org/10.1021/acsomega.3c06186 eng eng http://nbn-resolving.de/urn:nbn:de:bsz:352-2-h7kdevbo0y9v9 http://dx.doi.org/10.1021/acsomega.3c06186 1902435680 http://creativecommons.org/licenses/by-nc-nd/4.0/ ACS Omega. ACS Publications. 2024, 9(10), S. 11232-11242. eISSN 2470-1343. Verfügbar unter: doi:10.1021/acsomega.3c06186 ddc:540 doc-type:article doc-type:Text 2024 ftubkonstanz https://doi.org/10.1021/acsomega.3c06186 2024-09-18T00:08:24Z Waste seashells from aquaculture are a massive source of biogenic calcium carbonate (bCC) that can be a potential substitute for ground calcium carbonate and precipitated calcium carbonate. These last materials find several applications in industry after a surface coating with hydrophobic molecules, with stearate as the most used. Here, we investigate for the first time the capability of aqueous stearate dispersions to coat bCC powders from seashells of market-relevant mollusc aquaculture species, namely the oyster Crassostrea gigas, the scallop Pecten jacobaeus, and the clam Chamelea gallina. The chemical–physical features of bCC were extensively characterized by different analytical techniques. The results of stearate adsorption experiments showed that the oyster shell powder, which is the bCC with a higher content of the organic matrix, showed the highest adsorption capability (about 23 wt % compared to 10 wt % of geogenic calcite). These results agree with the mechanism proposed in the literature in which stearate adsorption mainly involves the formation of calcium stearate micelles in the dispersion before the physical adsorption. The coated bCC from oyster shells was also tested as fillers in an ethylene vinyl acetate compound used for the preparation of shoe soles. The obtained compound showed better mechanical performance than the one prepared using ground calcium. In conclusion, we can state that bCC can replace ground and precipitated calcium carbonate and has a higher stearate adsorbing capability. Moreover, they represent an environmentally friendly and sustainable source of calcium carbonate that organisms produce by high biological control over composition, polymorphism, and crystal texture. These features can be exploited for applications in fields where calcium carbonate with selected features is required. published Article in Journal/Newspaper Crassostrea gigas KOPS - The Institutional Repository of the University of Konstanz ACS Omega 9 10 11232 11242 |
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KOPS - The Institutional Repository of the University of Konstanz |
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ftubkonstanz |
language |
English |
topic |
ddc:540 |
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ddc:540 Basile, Maria Luisa Triunfo, Carla Gärtner, Stefanie Fermani, Simona Laurenzi, Davide Maoloni, Gabriele Mazzon, Martina Marzadori, Claudio Cölfen, Helmut Falini, Giuseppe Stearate-Coated Biogenic Calcium Carbonate from Waste Seashells : A Sustainable Plastic Filler |
topic_facet |
ddc:540 |
description |
Waste seashells from aquaculture are a massive source of biogenic calcium carbonate (bCC) that can be a potential substitute for ground calcium carbonate and precipitated calcium carbonate. These last materials find several applications in industry after a surface coating with hydrophobic molecules, with stearate as the most used. Here, we investigate for the first time the capability of aqueous stearate dispersions to coat bCC powders from seashells of market-relevant mollusc aquaculture species, namely the oyster Crassostrea gigas, the scallop Pecten jacobaeus, and the clam Chamelea gallina. The chemical–physical features of bCC were extensively characterized by different analytical techniques. The results of stearate adsorption experiments showed that the oyster shell powder, which is the bCC with a higher content of the organic matrix, showed the highest adsorption capability (about 23 wt % compared to 10 wt % of geogenic calcite). These results agree with the mechanism proposed in the literature in which stearate adsorption mainly involves the formation of calcium stearate micelles in the dispersion before the physical adsorption. The coated bCC from oyster shells was also tested as fillers in an ethylene vinyl acetate compound used for the preparation of shoe soles. The obtained compound showed better mechanical performance than the one prepared using ground calcium. In conclusion, we can state that bCC can replace ground and precipitated calcium carbonate and has a higher stearate adsorbing capability. Moreover, they represent an environmentally friendly and sustainable source of calcium carbonate that organisms produce by high biological control over composition, polymorphism, and crystal texture. These features can be exploited for applications in fields where calcium carbonate with selected features is required. published |
format |
Article in Journal/Newspaper |
author |
Basile, Maria Luisa Triunfo, Carla Gärtner, Stefanie Fermani, Simona Laurenzi, Davide Maoloni, Gabriele Mazzon, Martina Marzadori, Claudio Cölfen, Helmut Falini, Giuseppe |
author_facet |
Basile, Maria Luisa Triunfo, Carla Gärtner, Stefanie Fermani, Simona Laurenzi, Davide Maoloni, Gabriele Mazzon, Martina Marzadori, Claudio Cölfen, Helmut Falini, Giuseppe |
author_sort |
Basile, Maria Luisa |
title |
Stearate-Coated Biogenic Calcium Carbonate from Waste Seashells : A Sustainable Plastic Filler |
title_short |
Stearate-Coated Biogenic Calcium Carbonate from Waste Seashells : A Sustainable Plastic Filler |
title_full |
Stearate-Coated Biogenic Calcium Carbonate from Waste Seashells : A Sustainable Plastic Filler |
title_fullStr |
Stearate-Coated Biogenic Calcium Carbonate from Waste Seashells : A Sustainable Plastic Filler |
title_full_unstemmed |
Stearate-Coated Biogenic Calcium Carbonate from Waste Seashells : A Sustainable Plastic Filler |
title_sort |
stearate-coated biogenic calcium carbonate from waste seashells : a sustainable plastic filler |
publishDate |
2024 |
url |
http://nbn-resolving.de/urn:nbn:de:bsz:352-2-h7kdevbo0y9v9 https://doi.org/10.1021/acsomega.3c06186 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
ACS Omega. ACS Publications. 2024, 9(10), S. 11232-11242. eISSN 2470-1343. Verfügbar unter: doi:10.1021/acsomega.3c06186 |
op_relation |
http://nbn-resolving.de/urn:nbn:de:bsz:352-2-h7kdevbo0y9v9 http://dx.doi.org/10.1021/acsomega.3c06186 1902435680 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1021/acsomega.3c06186 |
container_title |
ACS Omega |
container_volume |
9 |
container_issue |
10 |
container_start_page |
11232 |
op_container_end_page |
11242 |
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1811637735242334208 |