دورية أكاديمية
Natural organic matter inhibits Ni stabilization during Fe(II)-catalyzed ferrihydrite transformation.
| العنوان: | Natural organic matter inhibits Ni stabilization during Fe(II)-catalyzed ferrihydrite transformation. |
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| المؤلفون: | Zhou Z; Department of Civil & Environmental Engineering, The University of Iowa, Iowa City, United States; Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany. Electronic address: zhe_research@outlook.com., Latta DE; Department of Civil & Environmental Engineering, The University of Iowa, Iowa City, United States., Scherer MM; Department of Civil & Environmental Engineering, The University of Iowa, Iowa City, United States. |
| المصدر: | The Science of the total environment [Sci Total Environ] 2021 Feb 10; Vol. 755 (Pt 2), pp. 142612. Date of Electronic Publication: 2020 Sep 30. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0330500 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1026 (Electronic) Linking ISSN: 00489697 NLM ISO Abbreviation: Sci Total Environ Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: | Original Publication: Amsterdam, Elsevier. |
| مستخلص: | Trace metals, such as nickel (Ni), are often found associated with ferrihydrite (Fh) in soil and sediment and have been shown to redistribute during Fe(II)-catalyzed transformation of Fh. Fe(II)-catalyzed transformation of Fh, however, is often inhibited when natural organic matter (NOM) is associated with Fh. To explore whether NOM affects the behavior of Ni during Fe(II)-catalyzed transformation of Fh, we tracked Ni distribution, Fe atom exchange, and mineral transformation of Fh and Fh coprecipitated with Suwannee River natural organic matter (SRNOM-Fh). As expected, in the absence of Fe(II), Fh and SRNOM-Fh did not transform to secondary Fe minerals after two weeks. We further observed little difference in Ni adsorption on SRNOM-Fh compared to Fh. In the presence of Fe(II), however, we found that Ni associated with SRNOM-Fh was more susceptible to acid extraction than Fh. Specifically, we found almost double the amount of Ni remaining in the Fh after mild extraction compared to SRNOM-Fh. XRD showed that Fh transformed to goethite and magnetite whereas SRNOM-Fh did not transform despite 57 Fe isotope tracer experiments confirmed that SRNOM-Fh underwent extensive atom exchange with aqueous Fe(II). Our findings suggest that Fe atom exchange may not be sufficient for obvious Ni stabilization and that transformation to secondary minerals may be necessary for Ni stabilization to occur. Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2020 Elsevier B.V. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Fe atom exchange; Ferrihydrite; Mineral transformation; Natural organic matter; Nickel |
| تواريخ الأحداث: | Date Created: 20201012 Date Completed: 20201221 Latest Revision: 20201221 |
| رمز التحديث: | 20240829 |
| DOI: | 10.1016/j.scitotenv.2020.142612 |
| PMID: | 33045610 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1879-1026 |
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| DOI: | 10.1016/j.scitotenv.2020.142612 |