Effects of Corrosion Products Deposited on 304 Stainless Steel on Reduction of Se (IV/VI) in Simulated Groundwater

Selenium (Se) is a key mobile fission product in the geological disposal of nuclear waste. It is necessary to analyze the reductive deposition behavior of iron-based materials to Se(IV) and Se(VI) in groundwater. In the present work, the corrosion behavior of 304 stainless steel in simulated groundw...

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Autores principales: Huang, Guokai, Li, Teng, Zhang, Xian, Wang, Lingyu, Cui, Daqing, Yang, Miao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9024695/
https://www.ncbi.nlm.nih.gov/pubmed/35454398
http://dx.doi.org/10.3390/ma15082705
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author Huang, Guokai
Li, Teng
Zhang, Xian
Wang, Lingyu
Cui, Daqing
Yang, Miao
author_facet Huang, Guokai
Li, Teng
Zhang, Xian
Wang, Lingyu
Cui, Daqing
Yang, Miao
author_sort Huang, Guokai
collection PubMed
description Selenium (Se) is a key mobile fission product in the geological disposal of nuclear waste. It is necessary to analyze the reductive deposition behavior of iron-based materials to Se(IV) and Se(VI) in groundwater. In the present work, the corrosion behavior of 304 stainless steel in simulated groundwater (SG) and the effects of corrosion products on the dissolution of Se were investigated by electrochemical and immersion tests. Experimental results revealed that passivation films formed on 304 stainless-steel samples were destroyed by polarization measurements, forming corrosion products consisting of Fe(II) compounds, such as Fe(3)O(4) and FeO. Corrosion products deposited on the surface of steel samples previously treated by polarization measurements in SG + CaCl(2)/Na(2)CO(3)/Na(2)SiO(3) solutions effectively reduced soluble Se(IV) and Se(VI) during immersion tests, depositing FeSe(2) on sample surfaces.
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spelling pubmed-90246952022-04-23 Effects of Corrosion Products Deposited on 304 Stainless Steel on Reduction of Se (IV/VI) in Simulated Groundwater Huang, Guokai Li, Teng Zhang, Xian Wang, Lingyu Cui, Daqing Yang, Miao Materials (Basel) Article Selenium (Se) is a key mobile fission product in the geological disposal of nuclear waste. It is necessary to analyze the reductive deposition behavior of iron-based materials to Se(IV) and Se(VI) in groundwater. In the present work, the corrosion behavior of 304 stainless steel in simulated groundwater (SG) and the effects of corrosion products on the dissolution of Se were investigated by electrochemical and immersion tests. Experimental results revealed that passivation films formed on 304 stainless-steel samples were destroyed by polarization measurements, forming corrosion products consisting of Fe(II) compounds, such as Fe(3)O(4) and FeO. Corrosion products deposited on the surface of steel samples previously treated by polarization measurements in SG + CaCl(2)/Na(2)CO(3)/Na(2)SiO(3) solutions effectively reduced soluble Se(IV) and Se(VI) during immersion tests, depositing FeSe(2) on sample surfaces. MDPI 2022-04-07 /pmc/articles/PMC9024695/ /pubmed/35454398 http://dx.doi.org/10.3390/ma15082705 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
Huang, Guokai
Li, Teng
Zhang, Xian
Wang, Lingyu
Cui, Daqing
Yang, Miao
Effects of Corrosion Products Deposited on 304 Stainless Steel on Reduction of Se (IV/VI) in Simulated Groundwater
title Effects of Corrosion Products Deposited on 304 Stainless Steel on Reduction of Se (IV/VI) in Simulated Groundwater
title_full Effects of Corrosion Products Deposited on 304 Stainless Steel on Reduction of Se (IV/VI) in Simulated Groundwater
title_fullStr Effects of Corrosion Products Deposited on 304 Stainless Steel on Reduction of Se (IV/VI) in Simulated Groundwater
title_full_unstemmed Effects of Corrosion Products Deposited on 304 Stainless Steel on Reduction of Se (IV/VI) in Simulated Groundwater
title_short Effects of Corrosion Products Deposited on 304 Stainless Steel on Reduction of Se (IV/VI) in Simulated Groundwater
title_sort effects of corrosion products deposited on 304 stainless steel on reduction of se (iv/vi) in simulated groundwater
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9024695/
https://www.ncbi.nlm.nih.gov/pubmed/35454398
http://dx.doi.org/10.3390/ma15082705
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