Uranium release from iron-rich acid soils under IPCC elevated CO2 scenarios: One-sided organic nanocolloidal dominance rather than expected iron oxide colloids.
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| Title: | Uranium release from iron-rich acid soils under IPCC elevated CO2 scenarios: One-sided organic nanocolloidal dominance rather than expected iron oxide colloids. |
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| Authors: | Wang, Ziyan1 (AUTHOR), Cheng, Tingfeng1 (AUTHOR), Wang, Caiqin2 (AUTHOR), Zhao, Yuwei1 (AUTHOR), Zhang, Daoyong1,2 (AUTHOR) zhang-daoyong@163.com, Pan, Xiangliang1,3 (AUTHOR) panxl@zjut.edu.cn |
| Source: | Journal of Hazardous Materials. Sep2025, Vol. 496, pN.PAG-N.PAG. 1p. |
| Subjects: | Uranium, Acid soils, Intergovernmental Panel on Climate Change, Colloids, Atmospheric carbon dioxide, Environmental risk, Soil acidification |
| Abstract: | The global iron-rich acid soils, containing ppm uranium (U), support a population of billions. Because of high sensitivity of U to dissolved inorganic carbonates (DIC), global CO 2 rising may significantly influence mobility of U in soils. However, responses of U release and fractionation between various colloidal and dissolved phases to elevated CO 2 (eCO 2) were unknown. In this study, we unveiled U release behavior and underlying mechanisms in the latosol and black soils upon exposure to simulated eCO 2 using edge-cutting nanoscale IR spectroscopic mapping (NanoIR mapping) and single particle inductively coupled plasma mass spectrometry (SP-ICP-MS), combined with uranyl speciation analysis and simulation. The eCO 2 treatment significantly decreased soil pH, disintegrated soil aggregates, and caused substantial release of U. Soil acidification, rather than DIC change, governed U release and fractionation. Upon eCO 2 exposure, U was leached from soils predominantly (>90 %) in organic nanocolloidal phases, contrasting with the widely recognized iron oxide-colloidal phase in iron-rich acid soils. The dominant organic nanocolloidal U could be ascribed to the direct release of U-loaded organic nanocolloids during disintegration of organic-mineral complexes. These results imply the continuous global CO 2 rise may significantly amplify environmental and health risks of U in acid soils by significantly increasing its mobility. [Display omitted] • eCO 2 causes aggregate disintegration in acid soils governed by pH rather than DIC. • Over 90 % U release under eCO 2 with organic nanocolloids rather than Fe oxide colloids. • bearing organic nanocolloids were released during breakdown of OM-mineral complexes. • Global CO 2 rise may significantly amplify environmental risks of U in acid soils. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Hazardous Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 187791342 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Uranium release from iron-rich acid soils under IPCC elevated CO2 scenarios: One-sided organic nanocolloidal dominance rather than expected iron oxide colloids. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Wang%2C+Ziyan%22">Wang, Ziyan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cheng%2C+Tingfeng%22">Cheng, Tingfeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Caiqin%22">Wang, Caiqin</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Yuwei%22">Zhao, Yuwei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Daoyong%22">Zhang, Daoyong</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> zhang-daoyong@163.com</i><br /><searchLink fieldCode="AR" term="%22Pan%2C+Xiangliang%22">Pan, Xiangliang</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> panxl@zjut.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Hazardous+Materials%22">Journal of Hazardous Materials</searchLink>. Sep2025, Vol. 496, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Uranium%22">Uranium</searchLink><br /><searchLink fieldCode="DE" term="%22Acid+soils%22">Acid soils</searchLink><br /><searchLink fieldCode="DE" term="%22Intergovernmental+Panel+on+Climate+Change%22">Intergovernmental Panel on Climate Change</searchLink><br /><searchLink fieldCode="DE" term="%22Colloids%22">Colloids</searchLink><br /><searchLink fieldCode="DE" term="%22Atmospheric+carbon+dioxide%22">Atmospheric carbon dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+risk%22">Environmental risk</searchLink><br /><searchLink fieldCode="DE" term="%22Soil+acidification%22">Soil acidification</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The global iron-rich acid soils, containing ppm uranium (U), support a population of billions. Because of high sensitivity of U to dissolved inorganic carbonates (DIC), global CO 2 rising may significantly influence mobility of U in soils. However, responses of U release and fractionation between various colloidal and dissolved phases to elevated CO 2 (eCO 2) were unknown. In this study, we unveiled U release behavior and underlying mechanisms in the latosol and black soils upon exposure to simulated eCO 2 using edge-cutting nanoscale IR spectroscopic mapping (NanoIR mapping) and single particle inductively coupled plasma mass spectrometry (SP-ICP-MS), combined with uranyl speciation analysis and simulation. The eCO 2 treatment significantly decreased soil pH, disintegrated soil aggregates, and caused substantial release of U. Soil acidification, rather than DIC change, governed U release and fractionation. Upon eCO 2 exposure, U was leached from soils predominantly (>90 %) in organic nanocolloidal phases, contrasting with the widely recognized iron oxide-colloidal phase in iron-rich acid soils. The dominant organic nanocolloidal U could be ascribed to the direct release of U-loaded organic nanocolloids during disintegration of organic-mineral complexes. These results imply the continuous global CO 2 rise may significantly amplify environmental and health risks of U in acid soils by significantly increasing its mobility. [Display omitted] • eCO 2 causes aggregate disintegration in acid soils governed by pH rather than DIC. • Over 90 % U release under eCO 2 with organic nanocolloids rather than Fe oxide colloids. • bearing organic nanocolloids were released during breakdown of OM-mineral complexes. • Global CO 2 rise may significantly amplify environmental risks of U in acid soils. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Hazardous Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jhazmat.2025.139413 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Uranium Type: general – SubjectFull: Acid soils Type: general – SubjectFull: Intergovernmental Panel on Climate Change Type: general – SubjectFull: Colloids Type: general – SubjectFull: Atmospheric carbon dioxide Type: general – SubjectFull: Environmental risk Type: general – SubjectFull: Soil acidification Type: general Titles: – TitleFull: Uranium release from iron-rich acid soils under IPCC elevated CO2 scenarios: One-sided organic nanocolloidal dominance rather than expected iron oxide colloids. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Wang, Ziyan – PersonEntity: Name: NameFull: Cheng, Tingfeng – PersonEntity: Name: NameFull: Wang, Caiqin – PersonEntity: Name: NameFull: Zhao, Yuwei – PersonEntity: Name: NameFull: Zhang, Daoyong – PersonEntity: Name: NameFull: Pan, Xiangliang IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 09 Text: Sep2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 03043894 Numbering: – Type: volume Value: 496 Titles: – TitleFull: Journal of Hazardous Materials Type: main |
| ResultId | 1 |
