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Valorization of Sugarcane By-Products through Synthesis of Biogenic Amorphous Silica Microspheres for Sustainable Cosmetics

Ashes from sugarcane by-product incineration were used to synthesize silica powders through alkaline hot extraction, followed by ethanol/acid precipitation or the sol–gel method. Both production methods allowed amorphous spherical silica microparticles with sizes ranging from 1–15 μm and 97% purity...

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Autores principales: Costa, Joana R., Capeto, Ana Paula, Pereira, Carla F., Pedrosa, Sílvia S., Mota, Inês F., Burgal, João da Silva, Pintado, Ana I., Pintado, Manuela E., Oliveira, Catarina S. S., Costa, Patrícia, Madureira, Ana Raquel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9739331/
https://www.ncbi.nlm.nih.gov/pubmed/36500824
http://dx.doi.org/10.3390/nano12234201
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author Costa, Joana R.
Capeto, Ana Paula
Pereira, Carla F.
Pedrosa, Sílvia S.
Mota, Inês F.
Burgal, João da Silva
Pintado, Ana I.
Pintado, Manuela E.
Oliveira, Catarina S. S.
Costa, Patrícia
Madureira, Ana Raquel
author_facet Costa, Joana R.
Capeto, Ana Paula
Pereira, Carla F.
Pedrosa, Sílvia S.
Mota, Inês F.
Burgal, João da Silva
Pintado, Ana I.
Pintado, Manuela E.
Oliveira, Catarina S. S.
Costa, Patrícia
Madureira, Ana Raquel
author_sort Costa, Joana R.
collection PubMed
description Ashes from sugarcane by-product incineration were used to synthesize silica powders through alkaline hot extraction, followed by ethanol/acid precipitation or the sol–gel method. Both production methods allowed amorphous spherical silica microparticles with sizes ranging from 1–15 μm and 97% purity to be obtained. Water absorption ranged from 135–155 mL/100 g and 150–250 mL/100 g for precipitated silica and silica gel, respectively, while oil absorption ranged from 305 to 390 and from 250 to 350 mL/100 g. The precipitation with ethanol allowed the recovery of 178 g silica/kg ash, with a lab process cost of EUR 28.95/kg, while the sol-gel process showed a yield of 198 g silica/kg ash with a cost of EUR 10.89/kg. The experimental data suggest that ash from sugarcane by-products is a promising source to be converted into a competitive value-added product, minimizing the environmental impact of disposal problems.
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spelling pubmed-97393312022-12-11 Valorization of Sugarcane By-Products through Synthesis of Biogenic Amorphous Silica Microspheres for Sustainable Cosmetics Costa, Joana R. Capeto, Ana Paula Pereira, Carla F. Pedrosa, Sílvia S. Mota, Inês F. Burgal, João da Silva Pintado, Ana I. Pintado, Manuela E. Oliveira, Catarina S. S. Costa, Patrícia Madureira, Ana Raquel Nanomaterials (Basel) Article Ashes from sugarcane by-product incineration were used to synthesize silica powders through alkaline hot extraction, followed by ethanol/acid precipitation or the sol–gel method. Both production methods allowed amorphous spherical silica microparticles with sizes ranging from 1–15 μm and 97% purity to be obtained. Water absorption ranged from 135–155 mL/100 g and 150–250 mL/100 g for precipitated silica and silica gel, respectively, while oil absorption ranged from 305 to 390 and from 250 to 350 mL/100 g. The precipitation with ethanol allowed the recovery of 178 g silica/kg ash, with a lab process cost of EUR 28.95/kg, while the sol-gel process showed a yield of 198 g silica/kg ash with a cost of EUR 10.89/kg. The experimental data suggest that ash from sugarcane by-products is a promising source to be converted into a competitive value-added product, minimizing the environmental impact of disposal problems. MDPI 2022-11-26 /pmc/articles/PMC9739331/ /pubmed/36500824 http://dx.doi.org/10.3390/nano12234201 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Costa, Joana R.
Capeto, Ana Paula
Pereira, Carla F.
Pedrosa, Sílvia S.
Mota, Inês F.
Burgal, João da Silva
Pintado, Ana I.
Pintado, Manuela E.
Oliveira, Catarina S. S.
Costa, Patrícia
Madureira, Ana Raquel
Valorization of Sugarcane By-Products through Synthesis of Biogenic Amorphous Silica Microspheres for Sustainable Cosmetics
title Valorization of Sugarcane By-Products through Synthesis of Biogenic Amorphous Silica Microspheres for Sustainable Cosmetics
title_full Valorization of Sugarcane By-Products through Synthesis of Biogenic Amorphous Silica Microspheres for Sustainable Cosmetics
title_fullStr Valorization of Sugarcane By-Products through Synthesis of Biogenic Amorphous Silica Microspheres for Sustainable Cosmetics
title_full_unstemmed Valorization of Sugarcane By-Products through Synthesis of Biogenic Amorphous Silica Microspheres for Sustainable Cosmetics
title_short Valorization of Sugarcane By-Products through Synthesis of Biogenic Amorphous Silica Microspheres for Sustainable Cosmetics
title_sort valorization of sugarcane by-products through synthesis of biogenic amorphous silica microspheres for sustainable cosmetics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9739331/
https://www.ncbi.nlm.nih.gov/pubmed/36500824
http://dx.doi.org/10.3390/nano12234201
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