Selective Adsorption of Fluorine Contaminants from Spiked Wastewater via a Novel Fe III –Ce IV -Based Layered Hydroxide Composite and Mechanism Analysis of Colloids and Surfaces.
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| Title: | Selective Adsorption of Fluorine Contaminants from Spiked Wastewater via a Novel Fe III –Ce IV -Based Layered Hydroxide Composite and Mechanism Analysis of Colloids and Surfaces. |
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| Authors: | Du, Jing1 (AUTHOR), Zhao, Yanyan2 (AUTHOR), Huang, Tao1,3 (AUTHOR), Li, Hui3,4 (AUTHOR), He, Jia1,4 (AUTHOR) |
| Source: | Materials (1996-1944). Jun2025, Vol. 18 Issue 11, p2665. 17p. |
| Subjects: | Layered double hydroxides, Colloid analysis, Molecular structure, Colloids, Pollutants |
| Abstract: | Excessive intake of fluorine (F) over time can lead to acute or chronic fluorosis. In this study, a novel FeIII–CeIV-based layered hydroxide composite (DD-LHC) was synthesized and applied in both batch and column modes to develop new adsorbent materials and to obtain efficient removal of fluorine (F) anions from wastewater. DD-LHC achieved better adsorption results and material stability compared to green rusts (GR, FeII–FeIII hydroxide). The maximum adsorption capacity of DD-LHC for F− was 44.68 mmol·g−1, obtained at an initial pH of 5 and initial concentration of 80 mM. The substitution of CeIV for FeII in the intercalated layered structure of GR potentially changed the reaction pathways for F− removal, which are typically dominant in the layered double hydroxides (LDHs) of FeII–FeIII. The molecular structure of layered hydroxides combined with the three-dimensional (3D) metal frame of Fe-O-Ce was integrated into DD-LHC, resulting in nanoscale particle morphologies distinct from those of GR. The pseudo-first-order kinetic model effectively described the whole adsorption process of DD-LHC for F−. DD-LHC exhibited notable selectivity for F− across a wide pH range. The removal process of F− by DD-LHC was dominated by Ce–F coordination bonds, with additional influences from auxiliary pathways to different extents. [ABSTRACT FROM AUTHOR] |
| Copyright of Materials (1996-1944) is the property of MDPI 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 |
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| Header | DbId: egs DbLabel: Engineering Source An: 185869827 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Selective Adsorption of Fluorine Contaminants from Spiked Wastewater via a Novel Fe III –Ce IV -Based Layered Hydroxide Composite and Mechanism Analysis of Colloids and Surfaces. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Du%2C+Jing%22">Du, Jing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Yanyan%22">Zhao, Yanyan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huang%2C+Tao%22">Huang, Tao</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Hui%22">Li, Hui</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22He%2C+Jia%22">He, Jia</searchLink><relatesTo>1,4</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Jun2025, Vol. 18 Issue 11, p2665. 17p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Layered+double+hydroxides%22">Layered double hydroxides</searchLink><br /><searchLink fieldCode="DE" term="%22Colloid+analysis%22">Colloid analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+structure%22">Molecular structure</searchLink><br /><searchLink fieldCode="DE" term="%22Colloids%22">Colloids</searchLink><br /><searchLink fieldCode="DE" term="%22Pollutants%22">Pollutants</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Excessive intake of fluorine (F) over time can lead to acute or chronic fluorosis. In this study, a novel FeIII–CeIV-based layered hydroxide composite (DD-LHC) was synthesized and applied in both batch and column modes to develop new adsorbent materials and to obtain efficient removal of fluorine (F) anions from wastewater. DD-LHC achieved better adsorption results and material stability compared to green rusts (GR, FeII–FeIII hydroxide). The maximum adsorption capacity of DD-LHC for F− was 44.68 mmol·g−1, obtained at an initial pH of 5 and initial concentration of 80 mM. The substitution of CeIV for FeII in the intercalated layered structure of GR potentially changed the reaction pathways for F− removal, which are typically dominant in the layered double hydroxides (LDHs) of FeII–FeIII. The molecular structure of layered hydroxides combined with the three-dimensional (3D) metal frame of Fe-O-Ce was integrated into DD-LHC, resulting in nanoscale particle morphologies distinct from those of GR. The pseudo-first-order kinetic model effectively described the whole adsorption process of DD-LHC for F−. DD-LHC exhibited notable selectivity for F− across a wide pH range. The removal process of F− by DD-LHC was dominated by Ce–F coordination bonds, with additional influences from auxiliary pathways to different extents. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Materials (1996-1944) is the property of MDPI 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: 10.3390/ma18112665 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 2665 Subjects: – SubjectFull: Layered double hydroxides Type: general – SubjectFull: Colloid analysis Type: general – SubjectFull: Molecular structure Type: general – SubjectFull: Colloids Type: general – SubjectFull: Pollutants Type: general Titles: – TitleFull: Selective Adsorption of Fluorine Contaminants from Spiked Wastewater via a Novel Fe III –Ce IV -Based Layered Hydroxide Composite and Mechanism Analysis of Colloids and Surfaces. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Du, Jing – PersonEntity: Name: NameFull: Zhao, Yanyan – PersonEntity: Name: NameFull: Huang, Tao – PersonEntity: Name: NameFull: Li, Hui – PersonEntity: Name: NameFull: He, Jia IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 19961944 Numbering: – Type: volume Value: 18 – Type: issue Value: 11 Titles: – TitleFull: Materials (1996-1944) Type: main |
| ResultId | 1 |
