Recyclable adsorbents of Fe and La co-modified clam shells for phosphorus removal from domestic sewage: Characterization and mechanisms
Summary: This research focused on creating a recyclable magnetic adsorbent, termed La@Fe-CCS, which was modified with lanthanum (La) to improve its efficiency in removing phosphate. The process involved integrating lanthanum into an iron (Fe)-based clam shell matrix (Fe-CCS). This study showed that...
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Elsevier
2025-02-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004225000215 |
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| author | Huiteng Wang Hui Luo Teng Qin Jing Yang Limin Chen Meng Liu Ming Tang Bao-Jie He Zhaoqian Jing |
| author_facet | Huiteng Wang Hui Luo Teng Qin Jing Yang Limin Chen Meng Liu Ming Tang Bao-Jie He Zhaoqian Jing |
| author_sort | Huiteng Wang |
| collection | DOAJ |
| description | Summary: This research focused on creating a recyclable magnetic adsorbent, termed La@Fe-CCS, which was modified with lanthanum (La) to improve its efficiency in removing phosphate. The process involved integrating lanthanum into an iron (Fe)-based clam shell matrix (Fe-CCS). This study showed that La@Fe-CCS demonstrated superior adsorption capabilities within a pH range of 3–8 compared to Fe-CCS. Coexisting ions and humic acid (HA) had limited effects. La@Fe-CCS also exhibited rapid adsorption kinetics, achieving equilibrium within 20 min. It showed a theoretical maximum adsorption capacity of 43.61 mg/g, which was substantially higher than that of Fe-CCS (5.79 mg/g). XPS and FTIR analyses indicated that phosphate removal by La@Fe-CCS involves ligand exchange between surface hydroxyl groups and phosphate, as well as intrasphere complexation. In real domestic sewage, La@Fe-CCS achieved over 95% total phosphorus (P) removal. These results suggest that La@Fe-CCS is a highly efficient adsorbent for practical P remediation applications. |
| format | Article |
| id | doaj-art-6f2a3f6af1574dcf92bcbf36eff225ac |
| institution | Kabale University |
| issn | 2589-0042 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-6f2a3f6af1574dcf92bcbf36eff225ac2025-01-26T05:04:34ZengElsevieriScience2589-00422025-02-01282111762Recyclable adsorbents of Fe and La co-modified clam shells for phosphorus removal from domestic sewage: Characterization and mechanismsHuiteng Wang0Hui Luo1Teng Qin2Jing Yang3Limin Chen4Meng Liu5Ming Tang6Bao-Jie He7Zhaoqian Jing8School of Civil and Ocean Engineering, Jiangsu Ocean University, Lianyungang 222005, ChinaSchool of Civil and Ocean Engineering, Jiangsu Ocean University, Lianyungang 222005, China; Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Corresponding authorSchool of Civil and Ocean Engineering, Jiangsu Ocean University, Lianyungang 222005, ChinaSchool of Civil and Ocean Engineering, Jiangsu Ocean University, Lianyungang 222005, ChinaSchool of Civil and Ocean Engineering, Jiangsu Ocean University, Lianyungang 222005, ChinaSchool of Civil and Ocean Engineering, Jiangsu Ocean University, Lianyungang 222005, ChinaSchool of Civil and Ocean Engineering, Jiangsu Ocean University, Lianyungang 222005, ChinaCentre for Climate–Resilient and Low–Carbon Cities, School of Architecture and Urban Planning, Key Laboratory of New Technology for Construction of Cities in Mountain Area, Ministry of Education, Chongqing University, Chongqing 400030, China; Corresponding authorCollege of Civil Engineering, Nanjing Forestry University, Nanjing 210037, ChinaSummary: This research focused on creating a recyclable magnetic adsorbent, termed La@Fe-CCS, which was modified with lanthanum (La) to improve its efficiency in removing phosphate. The process involved integrating lanthanum into an iron (Fe)-based clam shell matrix (Fe-CCS). This study showed that La@Fe-CCS demonstrated superior adsorption capabilities within a pH range of 3–8 compared to Fe-CCS. Coexisting ions and humic acid (HA) had limited effects. La@Fe-CCS also exhibited rapid adsorption kinetics, achieving equilibrium within 20 min. It showed a theoretical maximum adsorption capacity of 43.61 mg/g, which was substantially higher than that of Fe-CCS (5.79 mg/g). XPS and FTIR analyses indicated that phosphate removal by La@Fe-CCS involves ligand exchange between surface hydroxyl groups and phosphate, as well as intrasphere complexation. In real domestic sewage, La@Fe-CCS achieved over 95% total phosphorus (P) removal. These results suggest that La@Fe-CCS is a highly efficient adsorbent for practical P remediation applications.http://www.sciencedirect.com/science/article/pii/S2589004225000215ChemistryChemical engineering |
| spellingShingle | Huiteng Wang Hui Luo Teng Qin Jing Yang Limin Chen Meng Liu Ming Tang Bao-Jie He Zhaoqian Jing Recyclable adsorbents of Fe and La co-modified clam shells for phosphorus removal from domestic sewage: Characterization and mechanisms iScience Chemistry Chemical engineering |
| title | Recyclable adsorbents of Fe and La co-modified clam shells for phosphorus removal from domestic sewage: Characterization and mechanisms |
| title_full | Recyclable adsorbents of Fe and La co-modified clam shells for phosphorus removal from domestic sewage: Characterization and mechanisms |
| title_fullStr | Recyclable adsorbents of Fe and La co-modified clam shells for phosphorus removal from domestic sewage: Characterization and mechanisms |
| title_full_unstemmed | Recyclable adsorbents of Fe and La co-modified clam shells for phosphorus removal from domestic sewage: Characterization and mechanisms |
| title_short | Recyclable adsorbents of Fe and La co-modified clam shells for phosphorus removal from domestic sewage: Characterization and mechanisms |
| title_sort | recyclable adsorbents of fe and la co modified clam shells for phosphorus removal from domestic sewage characterization and mechanisms |
| topic | Chemistry Chemical engineering |
| url | http://www.sciencedirect.com/science/article/pii/S2589004225000215 |
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