CELLULOSIC MEMBRANES SUPPORTED WITH SILICA FROM RICE HUSK AND RICE HUSK ASH FOR SLOW RELEASE

The aim of this work was to study silica extraction from rice husk (RH) and rice husk ash (RHA). Bacterial cellulose (BC) was used to transport the extracted silica as well as the slow-release silica material. The silica extraction from RH and RHA was performed by leaching using ultrapure water and...

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Main Authors: Francine Gastaldon, Eduardo Junca, Felipe Fardin Grillo, Antônio Carlos Sobieranski, Suzane Quintana Gomes, Jamal Rafique, Tatiana Gisset Pineda Vásquez, Tiago Elias Allievi Frizon
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2025-02-01
Series:Química Nova
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422025000400307&lng=en&tlng=en
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author Francine Gastaldon
Eduardo Junca
Felipe Fardin Grillo
Antônio Carlos Sobieranski
Suzane Quintana Gomes
Jamal Rafique
Tatiana Gisset Pineda Vásquez
Tiago Elias Allievi Frizon
author_facet Francine Gastaldon
Eduardo Junca
Felipe Fardin Grillo
Antônio Carlos Sobieranski
Suzane Quintana Gomes
Jamal Rafique
Tatiana Gisset Pineda Vásquez
Tiago Elias Allievi Frizon
author_sort Francine Gastaldon
collection DOAJ
description The aim of this work was to study silica extraction from rice husk (RH) and rice husk ash (RHA). Bacterial cellulose (BC) was used to transport the extracted silica as well as the slow-release silica material. The silica extraction from RH and RHA was performed by leaching using ultrapure water and NaOH. Silica was quantified by UV-Vis spectrophotometer. BC membranes were produced with Komagataeibacter hansenii. Then, the membranes were impregnated with silica-rich leached extracts. Silica release tests under controlled conditions were conducted. Characterization of the impregnated membranes was conducted by Fourier transformed infrared spectrometry (FTIR), microstructural (scanning electron microscopy (SEM)) and mechanical resistance analyses. The results indicated that the RH and RHA leachates from the extractor solution containing NaOH contained more silica than did the extracts from ultrapure water. The BC membranes supported with the aqueous extract of RH released 58% of the adsorbed silica in 24 h. The BC membranes impregnated with RHA-H2O released 67% of the silica. The silica release reached 62% for RH and 60% for RHA from the extract leached with NaOH. The membranes showed a high capacity to retain both water and silica, which can be an alternative to reduce economic losses due to solubilization of fertilizers in the agricultural sector.
format Article
id doaj-art-a58e72fcc9e747b2b09a5f275337912c
institution Kabale University
issn 1678-7064
language English
publishDate 2025-02-01
publisher Sociedade Brasileira de Química
record_format Article
series Química Nova
spelling doaj-art-a58e72fcc9e747b2b09a5f275337912c2025-02-04T07:41:08ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642025-02-0148410.21577/0100-4042.20250095CELLULOSIC MEMBRANES SUPPORTED WITH SILICA FROM RICE HUSK AND RICE HUSK ASH FOR SLOW RELEASEFrancine Gastaldonhttps://orcid.org/0000-0002-2336-040XEduardo JuncaFelipe Fardin GrilloAntônio Carlos SobieranskiSuzane Quintana GomesJamal RafiqueTatiana Gisset Pineda Vásquezhttps://orcid.org/0000-0003-3803-3556Tiago Elias Allievi FrizonThe aim of this work was to study silica extraction from rice husk (RH) and rice husk ash (RHA). Bacterial cellulose (BC) was used to transport the extracted silica as well as the slow-release silica material. The silica extraction from RH and RHA was performed by leaching using ultrapure water and NaOH. Silica was quantified by UV-Vis spectrophotometer. BC membranes were produced with Komagataeibacter hansenii. Then, the membranes were impregnated with silica-rich leached extracts. Silica release tests under controlled conditions were conducted. Characterization of the impregnated membranes was conducted by Fourier transformed infrared spectrometry (FTIR), microstructural (scanning electron microscopy (SEM)) and mechanical resistance analyses. The results indicated that the RH and RHA leachates from the extractor solution containing NaOH contained more silica than did the extracts from ultrapure water. The BC membranes supported with the aqueous extract of RH released 58% of the adsorbed silica in 24 h. The BC membranes impregnated with RHA-H2O released 67% of the silica. The silica release reached 62% for RH and 60% for RHA from the extract leached with NaOH. The membranes showed a high capacity to retain both water and silica, which can be an alternative to reduce economic losses due to solubilization of fertilizers in the agricultural sector.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422025000400307&lng=en&tlng=enrice huskrice husk ashsilicacellulosic membranecontrolled release
spellingShingle Francine Gastaldon
Eduardo Junca
Felipe Fardin Grillo
Antônio Carlos Sobieranski
Suzane Quintana Gomes
Jamal Rafique
Tatiana Gisset Pineda Vásquez
Tiago Elias Allievi Frizon
CELLULOSIC MEMBRANES SUPPORTED WITH SILICA FROM RICE HUSK AND RICE HUSK ASH FOR SLOW RELEASE
Química Nova
rice husk
rice husk ash
silica
cellulosic membrane
controlled release
title CELLULOSIC MEMBRANES SUPPORTED WITH SILICA FROM RICE HUSK AND RICE HUSK ASH FOR SLOW RELEASE
title_full CELLULOSIC MEMBRANES SUPPORTED WITH SILICA FROM RICE HUSK AND RICE HUSK ASH FOR SLOW RELEASE
title_fullStr CELLULOSIC MEMBRANES SUPPORTED WITH SILICA FROM RICE HUSK AND RICE HUSK ASH FOR SLOW RELEASE
title_full_unstemmed CELLULOSIC MEMBRANES SUPPORTED WITH SILICA FROM RICE HUSK AND RICE HUSK ASH FOR SLOW RELEASE
title_short CELLULOSIC MEMBRANES SUPPORTED WITH SILICA FROM RICE HUSK AND RICE HUSK ASH FOR SLOW RELEASE
title_sort cellulosic membranes supported with silica from rice husk and rice husk ash for slow release
topic rice husk
rice husk ash
silica
cellulosic membrane
controlled release
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422025000400307&lng=en&tlng=en
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