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Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal
Industrial effluents and wastewater treatment have been a mainstay of environmental preservation and remediation for the last decade. Silica nanoparticles (SiO(2)) obtained from rice husk (RH) are an alternative to producing low-cost adsorbent and agriculture waste recovery. One adsorption challenge...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10051336/ https://www.ncbi.nlm.nih.gov/pubmed/36984308 http://dx.doi.org/10.3390/ma16062429 |
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author | Malafatti, João Otávio Donizette Tavares, Francine Aline Neves, Tainara Ramos Mascarenhas, Bruno Cano Quaranta, Simone Paris, Elaine Cristina |
author_facet | Malafatti, João Otávio Donizette Tavares, Francine Aline Neves, Tainara Ramos Mascarenhas, Bruno Cano Quaranta, Simone Paris, Elaine Cristina |
author_sort | Malafatti, João Otávio Donizette |
collection | PubMed |
description | Industrial effluents and wastewater treatment have been a mainstay of environmental preservation and remediation for the last decade. Silica nanoparticles (SiO(2)) obtained from rice husk (RH) are an alternative to producing low-cost adsorbent and agriculture waste recovery. One adsorption challenge is facilitating the adsorbate separation and reuse cycle from aqueous medium. Thus, the present work employs SiO(2) supported on polylactic acid (PLA) nanofibers obtained by the electrospinning method for Rhodamine B (RhB) dye adsorption. The silica surface was modified with trimethylsilyl chloride (TMCS) to increase affinity towards organic compounds. As a result, the silanized surface of the silica from rice husk (RHSil) promoted an increase in dye adsorption attributed to the hydrophobic properties. The PLA fibers containing 40% SiO(2) (w w(−1)) showed about 85–95% capacity adsorption. The pseudo-first-order kinetic model was demonstrated to be the best model for PLA:SiO(2) RHSil nanocomposites, exhibiting a 1.2956 mg g(−1) adsorption capacity and 0.01404 min(−1) kinetic constant (k(1)) value. In the reuse assay, PLA:SiO(2) membranes preserved their adsorption activity after three consecutive adsorption cycles, with a value superior to 60%. Therefore, PLA:SiO(2) nanocomposites from agricultural waste are an alternative to “low-cost/low-end” treatments and can be used in traditional treatment systems to improve dye removal from contaminated waters. |
format | Online Article Text |
id | pubmed-10051336 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-100513362023-03-30 Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal Malafatti, João Otávio Donizette Tavares, Francine Aline Neves, Tainara Ramos Mascarenhas, Bruno Cano Quaranta, Simone Paris, Elaine Cristina Materials (Basel) Article Industrial effluents and wastewater treatment have been a mainstay of environmental preservation and remediation for the last decade. Silica nanoparticles (SiO(2)) obtained from rice husk (RH) are an alternative to producing low-cost adsorbent and agriculture waste recovery. One adsorption challenge is facilitating the adsorbate separation and reuse cycle from aqueous medium. Thus, the present work employs SiO(2) supported on polylactic acid (PLA) nanofibers obtained by the electrospinning method for Rhodamine B (RhB) dye adsorption. The silica surface was modified with trimethylsilyl chloride (TMCS) to increase affinity towards organic compounds. As a result, the silanized surface of the silica from rice husk (RHSil) promoted an increase in dye adsorption attributed to the hydrophobic properties. The PLA fibers containing 40% SiO(2) (w w(−1)) showed about 85–95% capacity adsorption. The pseudo-first-order kinetic model was demonstrated to be the best model for PLA:SiO(2) RHSil nanocomposites, exhibiting a 1.2956 mg g(−1) adsorption capacity and 0.01404 min(−1) kinetic constant (k(1)) value. In the reuse assay, PLA:SiO(2) membranes preserved their adsorption activity after three consecutive adsorption cycles, with a value superior to 60%. Therefore, PLA:SiO(2) nanocomposites from agricultural waste are an alternative to “low-cost/low-end” treatments and can be used in traditional treatment systems to improve dye removal from contaminated waters. MDPI 2023-03-18 /pmc/articles/PMC10051336/ /pubmed/36984308 http://dx.doi.org/10.3390/ma16062429 Text en © 2023 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 Malafatti, João Otávio Donizette Tavares, Francine Aline Neves, Tainara Ramos Mascarenhas, Bruno Cano Quaranta, Simone Paris, Elaine Cristina Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal |
title | Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal |
title_full | Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal |
title_fullStr | Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal |
title_full_unstemmed | Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal |
title_short | Modified Silica Nanoparticles from Rice Husk Supported on Polylactic Acid as Adsorptive Membranes for Dye Removal |
title_sort | modified silica nanoparticles from rice husk supported on polylactic acid as adsorptive membranes for dye removal |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10051336/ https://www.ncbi.nlm.nih.gov/pubmed/36984308 http://dx.doi.org/10.3390/ma16062429 |
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