Lanthanum‐Modified Commercial Adsorbents for Enhanced Arsenic Removal and Stability Under Alkaline Conditions.
Saved in:
| Title: | Lanthanum‐Modified Commercial Adsorbents for Enhanced Arsenic Removal and Stability Under Alkaline Conditions. |
|---|---|
| Authors: | Byun, Seongje1 (AUTHOR), Kim, Sung Su2 (AUTHOR) sskim@kyonggi.ac.kr, Nguyen, Dinh Duc2 (AUTHOR) nguyensyduc@gmail.com |
| Source: | Environmental Quality Management. Summer2026, Vol. 35 Issue 4, p1-8. 8p. |
| Subject Terms: | *Water purification, *Sorbents, Arsenic removal (Groundwater purification), Lanthanum, Surface morphology, Adsorption capacity, Alkalinization |
| Abstract: | This study investigates the arsenic adsorption performance of commercial adsorbents modified with various lanthanum (La) precursors under different pH conditions. Both powder‐type and filter‐type adsorbents were fabricated, and the La(OH)3‐modified adsorbents exhibited superior arsenic removal efficiency in both forms, with more than 98% arsenic removal even under alkaline conditions (pH 8.5). BET analysis confirmed that lanthanum incorporation increased surface area by over 1.5 times compared to the pristine adsorbent. Additionally, FTIR and NH3‐TPD analyses revealed that the presence of acid sites partially contributed to enhanced adsorption performance. Notably, strong acid site signals were observed above 300°C in the La(OH)3 added samples, suggesting that the improvement in arsenic adsorption efficiency was partly due to the presence of lanthanum. The filter‐type adsorbents, developed by combining La‐modified powders with activated carbon and a binder, retained high adsorption efficiency in flow‐through tests, demonstrating their applicability in practical water treatment systems. These results highlight that the choice of lanthanum precursor and optimization of acid sites are critical factors for designing cost‐effective, scalable, and high‐performance adsorbents for arsenic removal under alkaline conditions. [ABSTRACT FROM AUTHOR] |
| Copyright of Environmental Quality Management is the property of Wiley-Blackwell 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: | GreenFILE |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: 8gh DbLabel: GreenFILE An: 194580188 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Lanthanum‐Modified Commercial Adsorbents for Enhanced Arsenic Removal and Stability Under Alkaline Conditions. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Byun%2C+Seongje%22">Byun, Seongje</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Sung+Su%22">Kim, Sung Su</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> sskim@kyonggi.ac.kr</i><br /><searchLink fieldCode="AR" term="%22Nguyen%2C+Dinh+Duc%22">Nguyen, Dinh Duc</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> nguyensyduc@gmail.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Environmental+Quality+Management%22">Environmental Quality Management</searchLink>. Summer2026, Vol. 35 Issue 4, p1-8. 8p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Water+purification%22">Water purification</searchLink><br />*<searchLink fieldCode="DE" term="%22Sorbents%22">Sorbents</searchLink><br /><searchLink fieldCode="DE" term="%22Arsenic+removal+%28Groundwater+purification%29%22">Arsenic removal (Groundwater purification)</searchLink><br /><searchLink fieldCode="DE" term="%22Lanthanum%22">Lanthanum</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+morphology%22">Surface morphology</searchLink><br /><searchLink fieldCode="DE" term="%22Adsorption+capacity%22">Adsorption capacity</searchLink><br /><searchLink fieldCode="DE" term="%22Alkalinization%22">Alkalinization</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This study investigates the arsenic adsorption performance of commercial adsorbents modified with various lanthanum (La) precursors under different pH conditions. Both powder‐type and filter‐type adsorbents were fabricated, and the La(OH)3‐modified adsorbents exhibited superior arsenic removal efficiency in both forms, with more than 98% arsenic removal even under alkaline conditions (pH 8.5). BET analysis confirmed that lanthanum incorporation increased surface area by over 1.5 times compared to the pristine adsorbent. Additionally, FTIR and NH3‐TPD analyses revealed that the presence of acid sites partially contributed to enhanced adsorption performance. Notably, strong acid site signals were observed above 300°C in the La(OH)3 added samples, suggesting that the improvement in arsenic adsorption efficiency was partly due to the presence of lanthanum. The filter‐type adsorbents, developed by combining La‐modified powders with activated carbon and a binder, retained high adsorption efficiency in flow‐through tests, demonstrating their applicability in practical water treatment systems. These results highlight that the choice of lanthanum precursor and optimization of acid sites are critical factors for designing cost‐effective, scalable, and high‐performance adsorbents for arsenic removal under alkaline conditions. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Environmental Quality Management is the property of Wiley-Blackwell 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.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=8gh&AN=194580188 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/tqem.70383 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 1 Subjects: – SubjectFull: Water purification Type: general – SubjectFull: Sorbents Type: general – SubjectFull: Arsenic removal (Groundwater purification) Type: general – SubjectFull: Lanthanum Type: general – SubjectFull: Surface morphology Type: general – SubjectFull: Adsorption capacity Type: general – SubjectFull: Alkalinization Type: general Titles: – TitleFull: Lanthanum‐Modified Commercial Adsorbents for Enhanced Arsenic Removal and Stability Under Alkaline Conditions. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Byun, Seongje – PersonEntity: Name: NameFull: Kim, Sung Su – PersonEntity: Name: NameFull: Nguyen, Dinh Duc IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Summer2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 10881913 Numbering: – Type: volume Value: 35 – Type: issue Value: 4 Titles: – TitleFull: Environmental Quality Management Type: main |
| ResultId | 1 |
