Chloride Adsorption on EDTA Intercalated MnFe-LDHs: Characterization, Performance, and Application
Ethylenediamine tetraacetate-intercalated Fe-Mn layered double hydroxides (MnFe-EDTA-LDHs) were prepared by coprecipitation. The influence of different factors on Cl− adsorption by MnFe-EDTA-LDHs was investigated. Additionally, MnFe-EDTA-LDHs were incorporated into the concrete to study the Cl− eros...
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Wiley
2022-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/5375810 |
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| author | Xue Han |
| author_facet | Xue Han |
| author_sort | Xue Han |
| collection | DOAJ |
| description | Ethylenediamine tetraacetate-intercalated Fe-Mn layered double hydroxides (MnFe-EDTA-LDHs) were prepared by coprecipitation. The influence of different factors on Cl− adsorption by MnFe-EDTA-LDHs was investigated. Additionally, MnFe-EDTA-LDHs were incorporated into the concrete to study the Cl− erosion properties. The result showed that the Cl− adsorption on MnFe-EDTA-LDHs was affected by the initial pH, dosage, and coexisting anions. The Cl− adsorption process by MnFe-EDTA-LDHs accorded with the pseudo-second-order model and the Redlich–Peterson model. The maximum adsorption capacity of Cl− on MnFe-EDTA-LDHs reached 129.50 mg/g. The adsorption mechanism involved the complexation of O-containing groups, ion exchange, and electrostatic interaction. Moderate additions of MnFe-EDTA-LDHs improved the resistance of the concrete to Cl− erosion, while excessive additions reduced the Cl− erosion resistance. This work indicated that MnFe-EDTA-LDHs effectively retarded the Cl− erosion on concrete. |
| format | Article |
| id | doaj-art-1b701c8e97c34818bb4af14d70e10dcb |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-1b701c8e97c34818bb4af14d70e10dcb2025-02-03T00:59:37ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/5375810Chloride Adsorption on EDTA Intercalated MnFe-LDHs: Characterization, Performance, and ApplicationXue Han0School of Architecture and EngineeringEthylenediamine tetraacetate-intercalated Fe-Mn layered double hydroxides (MnFe-EDTA-LDHs) were prepared by coprecipitation. The influence of different factors on Cl− adsorption by MnFe-EDTA-LDHs was investigated. Additionally, MnFe-EDTA-LDHs were incorporated into the concrete to study the Cl− erosion properties. The result showed that the Cl− adsorption on MnFe-EDTA-LDHs was affected by the initial pH, dosage, and coexisting anions. The Cl− adsorption process by MnFe-EDTA-LDHs accorded with the pseudo-second-order model and the Redlich–Peterson model. The maximum adsorption capacity of Cl− on MnFe-EDTA-LDHs reached 129.50 mg/g. The adsorption mechanism involved the complexation of O-containing groups, ion exchange, and electrostatic interaction. Moderate additions of MnFe-EDTA-LDHs improved the resistance of the concrete to Cl− erosion, while excessive additions reduced the Cl− erosion resistance. This work indicated that MnFe-EDTA-LDHs effectively retarded the Cl− erosion on concrete.http://dx.doi.org/10.1155/2022/5375810 |
| spellingShingle | Xue Han Chloride Adsorption on EDTA Intercalated MnFe-LDHs: Characterization, Performance, and Application Advances in Materials Science and Engineering |
| title | Chloride Adsorption on EDTA Intercalated MnFe-LDHs: Characterization, Performance, and Application |
| title_full | Chloride Adsorption on EDTA Intercalated MnFe-LDHs: Characterization, Performance, and Application |
| title_fullStr | Chloride Adsorption on EDTA Intercalated MnFe-LDHs: Characterization, Performance, and Application |
| title_full_unstemmed | Chloride Adsorption on EDTA Intercalated MnFe-LDHs: Characterization, Performance, and Application |
| title_short | Chloride Adsorption on EDTA Intercalated MnFe-LDHs: Characterization, Performance, and Application |
| title_sort | chloride adsorption on edta intercalated mnfe ldhs characterization performance and application |
| url | http://dx.doi.org/10.1155/2022/5375810 |
| work_keys_str_mv | AT xuehan chlorideadsorptiononedtaintercalatedmnfeldhscharacterizationperformanceandapplication |