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Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent
Highly porous lignin-based microspheres, modified by magnetite nanoparticles, were used for the first time for the removal of selenate anions, Se(VI), from spiked and real water samples. The influence of experimental conditions: selenate concentration, adsorbent dosage and contact time on the adsorp...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9696047/ https://www.ncbi.nlm.nih.gov/pubmed/36430351 http://dx.doi.org/10.3390/ijms232213872 |
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author | Marjanovic, Vesna Markovic, Radmila Steharnik, Mirjana Dimitrijevic, Silvana Marinkovic, Aleksandar D. Peric-Grujic, Aleksandra Đolic, Maja |
author_facet | Marjanovic, Vesna Markovic, Radmila Steharnik, Mirjana Dimitrijevic, Silvana Marinkovic, Aleksandar D. Peric-Grujic, Aleksandra Đolic, Maja |
author_sort | Marjanovic, Vesna |
collection | PubMed |
description | Highly porous lignin-based microspheres, modified by magnetite nanoparticles, were used for the first time for the removal of selenate anions, Se(VI), from spiked and real water samples. The influence of experimental conditions: selenate concentration, adsorbent dosage and contact time on the adsorption capacity was investigated in a batch experimental mode. The FTIR, XRD, SEM techniques were used to analyze the structural and morphological properties of the native and exhausted adsorbent. The maximum adsorption capacity was found to be 69.9 mg/g for Se(VI) anions at pH 6.46 from the simulated water samples. The modified natural polymer was efficient in Se(VI) removal from the real (potable) water samples, originated from six cities in the Republic of Serbia, with an overage efficacy of 20%. The regeneration capacity of 61% in one cycle of desorption (0.5 M NaOH as desorption solution) of bio-based adsorbent was gained in this investigation. The examined material demonstrated a significant affinity for Se(VI) oxyanion, but a low potential for multi-cycle material application; consequently, the loaded sorbent could be proposed to be used as a Se fertilizer. |
format | Online Article Text |
id | pubmed-9696047 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96960472022-11-26 Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent Marjanovic, Vesna Markovic, Radmila Steharnik, Mirjana Dimitrijevic, Silvana Marinkovic, Aleksandar D. Peric-Grujic, Aleksandra Đolic, Maja Int J Mol Sci Article Highly porous lignin-based microspheres, modified by magnetite nanoparticles, were used for the first time for the removal of selenate anions, Se(VI), from spiked and real water samples. The influence of experimental conditions: selenate concentration, adsorbent dosage and contact time on the adsorption capacity was investigated in a batch experimental mode. The FTIR, XRD, SEM techniques were used to analyze the structural and morphological properties of the native and exhausted adsorbent. The maximum adsorption capacity was found to be 69.9 mg/g for Se(VI) anions at pH 6.46 from the simulated water samples. The modified natural polymer was efficient in Se(VI) removal from the real (potable) water samples, originated from six cities in the Republic of Serbia, with an overage efficacy of 20%. The regeneration capacity of 61% in one cycle of desorption (0.5 M NaOH as desorption solution) of bio-based adsorbent was gained in this investigation. The examined material demonstrated a significant affinity for Se(VI) oxyanion, but a low potential for multi-cycle material application; consequently, the loaded sorbent could be proposed to be used as a Se fertilizer. MDPI 2022-11-10 /pmc/articles/PMC9696047/ /pubmed/36430351 http://dx.doi.org/10.3390/ijms232213872 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 Marjanovic, Vesna Markovic, Radmila Steharnik, Mirjana Dimitrijevic, Silvana Marinkovic, Aleksandar D. Peric-Grujic, Aleksandra Đolic, Maja Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent |
title | Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent |
title_full | Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent |
title_fullStr | Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent |
title_full_unstemmed | Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent |
title_short | Lignin Microspheres Modified with Magnetite Nanoparticles as a Selenate Highly Porous Adsorbent |
title_sort | lignin microspheres modified with magnetite nanoparticles as a selenate highly porous adsorbent |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9696047/ https://www.ncbi.nlm.nih.gov/pubmed/36430351 http://dx.doi.org/10.3390/ijms232213872 |
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