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Nanoremediation of As and metals polluted soils by means of graphene oxide nanoparticles
The capacity of graphene oxide nanoparticles (nGOx) to reduce or increase As and metals availability in polluted soils was compared with that of zero valent iron nanoparticles (nZVI). The nanomaterials used in this study were characterized by X-ray techniques, CHNS-O analysis, dynamic light scatteri...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7002751/ https://www.ncbi.nlm.nih.gov/pubmed/32024880 http://dx.doi.org/10.1038/s41598-020-58852-4 |
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author | Baragaño, Diego Forján, Rubén Welte, Lorena Gallego, José Luis R. |
author_facet | Baragaño, Diego Forján, Rubén Welte, Lorena Gallego, José Luis R. |
author_sort | Baragaño, Diego |
collection | PubMed |
description | The capacity of graphene oxide nanoparticles (nGOx) to reduce or increase As and metals availability in polluted soils was compared with that of zero valent iron nanoparticles (nZVI). The nanomaterials used in this study were characterized by X-ray techniques, CHNS-O analysis, dynamic light scattering, and microscopy procedures such as atomic force microscopy. To assess the capacity of these materials to immobilize pollutants, field samples of two soils were treated with nZVI and nGOx at a range of doses (0.2%, 1% and 5%). Availability tests were then performed. nGOx effectively immobilized Cu, Pb and Cd, but mobilized As and P (even at low doses), in the latter case irrespective of the simultaneous presence of high concentrations of metals. In turn, nZVI promoted notable immobilization results for As and Pb, a poorer result for Cd, and an increased availability for Cu. Soil pH and EC have been slightly affected by nGOx. On the whole, nGOx emerges as a promising option for mobilization/immobilization strategies for soil nanoremediation when combined with other techniques such as phytoremediation. |
format | Online Article Text |
id | pubmed-7002751 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-70027512020-02-14 Nanoremediation of As and metals polluted soils by means of graphene oxide nanoparticles Baragaño, Diego Forján, Rubén Welte, Lorena Gallego, José Luis R. Sci Rep Article The capacity of graphene oxide nanoparticles (nGOx) to reduce or increase As and metals availability in polluted soils was compared with that of zero valent iron nanoparticles (nZVI). The nanomaterials used in this study were characterized by X-ray techniques, CHNS-O analysis, dynamic light scattering, and microscopy procedures such as atomic force microscopy. To assess the capacity of these materials to immobilize pollutants, field samples of two soils were treated with nZVI and nGOx at a range of doses (0.2%, 1% and 5%). Availability tests were then performed. nGOx effectively immobilized Cu, Pb and Cd, but mobilized As and P (even at low doses), in the latter case irrespective of the simultaneous presence of high concentrations of metals. In turn, nZVI promoted notable immobilization results for As and Pb, a poorer result for Cd, and an increased availability for Cu. Soil pH and EC have been slightly affected by nGOx. On the whole, nGOx emerges as a promising option for mobilization/immobilization strategies for soil nanoremediation when combined with other techniques such as phytoremediation. Nature Publishing Group UK 2020-02-05 /pmc/articles/PMC7002751/ /pubmed/32024880 http://dx.doi.org/10.1038/s41598-020-58852-4 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Baragaño, Diego Forján, Rubén Welte, Lorena Gallego, José Luis R. Nanoremediation of As and metals polluted soils by means of graphene oxide nanoparticles |
title | Nanoremediation of As and metals polluted soils by means of graphene oxide nanoparticles |
title_full | Nanoremediation of As and metals polluted soils by means of graphene oxide nanoparticles |
title_fullStr | Nanoremediation of As and metals polluted soils by means of graphene oxide nanoparticles |
title_full_unstemmed | Nanoremediation of As and metals polluted soils by means of graphene oxide nanoparticles |
title_short | Nanoremediation of As and metals polluted soils by means of graphene oxide nanoparticles |
title_sort | nanoremediation of as and metals polluted soils by means of graphene oxide nanoparticles |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7002751/ https://www.ncbi.nlm.nih.gov/pubmed/32024880 http://dx.doi.org/10.1038/s41598-020-58852-4 |
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