Structure-modulated CaFe-LDHs with superior simultaneous removal of deleterious anions and corrosion protection of steel rebar
DC Field | Value | Language |
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dc.contributor.author | Park, Ji Young | - |
dc.contributor.author | Lee, Jimin | - |
dc.contributor.author | Lim, Minseob | - |
dc.contributor.author | Go, Gwang-Myeong | - |
dc.contributor.author | Cho, Hong-Baek | - |
dc.contributor.author | Lee, Han-Seung | - |
dc.contributor.author | Choa, Yong-Ho | - |
dc.date.accessioned | 2021-06-22T04:25:29Z | - |
dc.date.available | 2021-06-22T04:25:29Z | - |
dc.date.issued | 2021-03 | - |
dc.identifier.issn | 2046-2069 | - |
dc.identifier.issn | 2046-2069 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/426 | - |
dc.description.abstract | The three anionic species; chloride (Cl-), sulfate (SO42-), and carbonate (CO32-), are typical chemical factors that environmentally accelerate failure of concrete structures with steel rebar through long-term exposure. Efficient removal of these deleterious anions at the early stage of penetration is crucial to enhance the lifespan and durability of concrete structures. Here, we synthesize CaFe-layered double hydroxide (CaFe-LDHs) by a simple one-step co-precipitation technique and structural modulation by calcination process. It is applied for the removal of Cl-, SO42-, and CO32- anions as well as corrosion inhibition on steel rebar in aqueous solutions. The synthesized CaFe-LDHs with phase transfer show notable improvement of removal capacity (Q(max)) toward Cl- and SO42- over 3.4 times and over 5.69 times, respectably, then those of previous literatures. Furthermore, the steel rebar exposed to an aqueous solution containing the three anionic sources shows a fast corrosion rate (1876.56 x 10(-3) mm per year), which can be remarkably inhibited showing 98.83% of corrosion inhibition efficiency when it is surrounded by those CaFe-LDHs. The novel adsorption mechanisms of these CaFe-LDHs-induced crystals and corresponding corrosion protection properties are elucidated drawing on synergy of memory effects and chemical reactions. | - |
dc.format.extent | 11 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Royal Society of Chemistry | - |
dc.title | Structure-modulated CaFe-LDHs with superior simultaneous removal of deleterious anions and corrosion protection of steel rebar | - |
dc.type | Article | - |
dc.publisher.location | 영국 | - |
dc.identifier.doi | 10.1039/d1ra00300c | - |
dc.identifier.scopusid | 2-s2.0-85102733848 | - |
dc.identifier.wosid | 000629770100057 | - |
dc.identifier.bibliographicCitation | RSC Advances, v.11, no.18, pp 10951 - 10961 | - |
dc.citation.title | RSC Advances | - |
dc.citation.volume | 11 | - |
dc.citation.number | 18 | - |
dc.citation.startPage | 10951 | - |
dc.citation.endPage | 10961 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | NITRATE | - |
dc.subject.keywordPlus | Chlorine compounds | - |
dc.subject.keywordPlus | Concrete buildings | - |
dc.subject.keywordPlus | Concrete construction | - |
dc.subject.keywordPlus | Corrosion inhibitors | - |
dc.subject.keywordPlus | Corrosion protection | - |
dc.subject.keywordPlus | Corrosion rate | - |
dc.subject.keywordPlus | Failure (mechanical) | - |
dc.subject.keywordPlus | Ions | - |
dc.subject.keywordPlus | Rebar | - |
dc.subject.keywordPlus | Steel corrosion | - |
dc.subject.keywordPlus | Sulfur compounds | - |
dc.subject.keywordPlus | Adsorption mechanism | - |
dc.subject.keywordPlus | Corrosion inhibition | - |
dc.subject.keywordPlus | Corrosion inhibition efficiency | - |
dc.subject.keywordPlus | Durability of concrete structure | - |
dc.subject.keywordPlus | Layered double hydroxides | - |
dc.subject.keywordPlus | Long term exposure | - |
dc.subject.keywordPlus | Simultaneous removal | - |
dc.subject.keywordPlus | Structural modulations | - |
dc.subject.keywordPlus | Concretes | - |
dc.identifier.url | https://pubs.rsc.org/en/content/articlelanding/2021/RA/D1RA00300C | - |
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