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Detection and Characterization of TiO(2) Nanomaterials in Sludge from Wastewater Treatment Plants of Chihuahua State, Mexico

TiO(2) nanoparticles (TiO(2)-NPs) have a wide range of industrial applications (paintings, sunscreens, food and cosmetics) and is one of the most intensively used nanomaterials worldwide. Leaching from commercial products TiO(2)-NPs are predicted to significantly accumulate in wastewater sludges, wh...

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Autores principales: Reyes-Herrera, Juan, Acosta-Slane, Damaris, Castillo-Michel, Hiram, Pradas del Real, Ana E., Vogel-Mikus, Katarina, Benetti, Federico, Roman, Marco, Villanova, Julie, Valles-Aragón, M. Cecilia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8911657/
https://www.ncbi.nlm.nih.gov/pubmed/35269232
http://dx.doi.org/10.3390/nano12050744
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author Reyes-Herrera, Juan
Acosta-Slane, Damaris
Castillo-Michel, Hiram
Pradas del Real, Ana E.
Vogel-Mikus, Katarina
Benetti, Federico
Roman, Marco
Villanova, Julie
Valles-Aragón, M. Cecilia
author_facet Reyes-Herrera, Juan
Acosta-Slane, Damaris
Castillo-Michel, Hiram
Pradas del Real, Ana E.
Vogel-Mikus, Katarina
Benetti, Federico
Roman, Marco
Villanova, Julie
Valles-Aragón, M. Cecilia
author_sort Reyes-Herrera, Juan
collection PubMed
description TiO(2) nanoparticles (TiO(2)-NPs) have a wide range of industrial applications (paintings, sunscreens, food and cosmetics) and is one of the most intensively used nanomaterials worldwide. Leaching from commercial products TiO(2)-NPs are predicted to significantly accumulate in wastewater sludges, which are then often used as soil amendment. In this work, sludge samples from four wastewater treatment plants of the Chihuahua State in Mexico were obtained during spring and summer (2017). A comprehensive characterization study was performed by X-ray based (laboratory and synchrotron) techniques and electron microscopy. Ti was detected in all sludge samples (1810–2760 mg/kg) mainly as TiO(2) particles ranging from 40 nm up to hundreds of nm. Micro-XANES data was analyzed by principal component analysis and linear combination fitting enabling the identification of three predominant Ti species: anatase, rutile and ilmenite. Micro-XANES from the smaller Ti particles was predominantly anatase (68% + 32% rutile), suggesting these TiO(2)-NPs originate from paintings and cosmetics. TEM imaging confirmed the presence of nanoscale Ti with smooth surface morphologies resembling engineered TiO(2)-NPs. The size and crystalline phase of TiO(2)-NPs in the sludge from this region suggest increased reactivity and potential toxicity to agro-systems. Further studies should be dedicated to evaluating this.
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spelling pubmed-89116572022-03-11 Detection and Characterization of TiO(2) Nanomaterials in Sludge from Wastewater Treatment Plants of Chihuahua State, Mexico Reyes-Herrera, Juan Acosta-Slane, Damaris Castillo-Michel, Hiram Pradas del Real, Ana E. Vogel-Mikus, Katarina Benetti, Federico Roman, Marco Villanova, Julie Valles-Aragón, M. Cecilia Nanomaterials (Basel) Article TiO(2) nanoparticles (TiO(2)-NPs) have a wide range of industrial applications (paintings, sunscreens, food and cosmetics) and is one of the most intensively used nanomaterials worldwide. Leaching from commercial products TiO(2)-NPs are predicted to significantly accumulate in wastewater sludges, which are then often used as soil amendment. In this work, sludge samples from four wastewater treatment plants of the Chihuahua State in Mexico were obtained during spring and summer (2017). A comprehensive characterization study was performed by X-ray based (laboratory and synchrotron) techniques and electron microscopy. Ti was detected in all sludge samples (1810–2760 mg/kg) mainly as TiO(2) particles ranging from 40 nm up to hundreds of nm. Micro-XANES data was analyzed by principal component analysis and linear combination fitting enabling the identification of three predominant Ti species: anatase, rutile and ilmenite. Micro-XANES from the smaller Ti particles was predominantly anatase (68% + 32% rutile), suggesting these TiO(2)-NPs originate from paintings and cosmetics. TEM imaging confirmed the presence of nanoscale Ti with smooth surface morphologies resembling engineered TiO(2)-NPs. The size and crystalline phase of TiO(2)-NPs in the sludge from this region suggest increased reactivity and potential toxicity to agro-systems. Further studies should be dedicated to evaluating this. MDPI 2022-02-23 /pmc/articles/PMC8911657/ /pubmed/35269232 http://dx.doi.org/10.3390/nano12050744 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
Reyes-Herrera, Juan
Acosta-Slane, Damaris
Castillo-Michel, Hiram
Pradas del Real, Ana E.
Vogel-Mikus, Katarina
Benetti, Federico
Roman, Marco
Villanova, Julie
Valles-Aragón, M. Cecilia
Detection and Characterization of TiO(2) Nanomaterials in Sludge from Wastewater Treatment Plants of Chihuahua State, Mexico
title Detection and Characterization of TiO(2) Nanomaterials in Sludge from Wastewater Treatment Plants of Chihuahua State, Mexico
title_full Detection and Characterization of TiO(2) Nanomaterials in Sludge from Wastewater Treatment Plants of Chihuahua State, Mexico
title_fullStr Detection and Characterization of TiO(2) Nanomaterials in Sludge from Wastewater Treatment Plants of Chihuahua State, Mexico
title_full_unstemmed Detection and Characterization of TiO(2) Nanomaterials in Sludge from Wastewater Treatment Plants of Chihuahua State, Mexico
title_short Detection and Characterization of TiO(2) Nanomaterials in Sludge from Wastewater Treatment Plants of Chihuahua State, Mexico
title_sort detection and characterization of tio(2) nanomaterials in sludge from wastewater treatment plants of chihuahua state, mexico
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8911657/
https://www.ncbi.nlm.nih.gov/pubmed/35269232
http://dx.doi.org/10.3390/nano12050744
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