Aluminum-Loaded Bifunctional Resins for Efficient Fluoride Removal from Aqueous Solutions
The deep defluorination of water remains a significant environmental challenge. In this work, aluminum was loaded onto the bifunctional resin S957 containing a phosphoric-sulfonic acid difunctional group for efficient fluoride removal. Al-S957 demonstrated excellent fluoride removal performance acro...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-07-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/15/14/7829 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849409139489374208 |
|---|---|
| author | Mengfei Ma Yingpeng Gu Ruijie Wang Yue Sun |
| author_facet | Mengfei Ma Yingpeng Gu Ruijie Wang Yue Sun |
| author_sort | Mengfei Ma |
| collection | DOAJ |
| description | The deep defluorination of water remains a significant environmental challenge. In this work, aluminum was loaded onto the bifunctional resin S957 containing a phosphoric-sulfonic acid difunctional group for efficient fluoride removal. Al-S957 demonstrated excellent fluoride removal performance across a broad pH range. When anions and organics coexisted, Al-S957 exhibited significantly better fluoride adsorption performance compared to aluminum-loaded monofunctional resins. The adsorption followed an endothermic chemisorption process on a monolayer surface. FTIR and XPS analyses further revealed that fluoride removal relied on a ligand exchange mechanism. Column adsorption conducted over five cycles highlighted the strong practical potential of Al-S957. The results suggested that Al-S957 exhibits significant potential for practical applications. |
| format | Article |
| id | doaj-art-57dd06614b124faf92e4fbe8c6a8a9c2 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-57dd06614b124faf92e4fbe8c6a8a9c22025-08-20T03:35:36ZengMDPI AGApplied Sciences2076-34172025-07-011514782910.3390/app15147829Aluminum-Loaded Bifunctional Resins for Efficient Fluoride Removal from Aqueous SolutionsMengfei Ma0Yingpeng Gu1Ruijie Wang2Yue Sun3Department of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, ChinaDepartment of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, ChinaDepartment of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, ChinaDepartment of Municipal Engineering, School of Civil Engineering, Southeast University, Nanjing 210096, ChinaThe deep defluorination of water remains a significant environmental challenge. In this work, aluminum was loaded onto the bifunctional resin S957 containing a phosphoric-sulfonic acid difunctional group for efficient fluoride removal. Al-S957 demonstrated excellent fluoride removal performance across a broad pH range. When anions and organics coexisted, Al-S957 exhibited significantly better fluoride adsorption performance compared to aluminum-loaded monofunctional resins. The adsorption followed an endothermic chemisorption process on a monolayer surface. FTIR and XPS analyses further revealed that fluoride removal relied on a ligand exchange mechanism. Column adsorption conducted over five cycles highlighted the strong practical potential of Al-S957. The results suggested that Al-S957 exhibits significant potential for practical applications.https://www.mdpi.com/2076-3417/15/14/7829aluminumresinfluoride removaladsorptionligand exchange |
| spellingShingle | Mengfei Ma Yingpeng Gu Ruijie Wang Yue Sun Aluminum-Loaded Bifunctional Resins for Efficient Fluoride Removal from Aqueous Solutions Applied Sciences aluminum resin fluoride removal adsorption ligand exchange |
| title | Aluminum-Loaded Bifunctional Resins for Efficient Fluoride Removal from Aqueous Solutions |
| title_full | Aluminum-Loaded Bifunctional Resins for Efficient Fluoride Removal from Aqueous Solutions |
| title_fullStr | Aluminum-Loaded Bifunctional Resins for Efficient Fluoride Removal from Aqueous Solutions |
| title_full_unstemmed | Aluminum-Loaded Bifunctional Resins for Efficient Fluoride Removal from Aqueous Solutions |
| title_short | Aluminum-Loaded Bifunctional Resins for Efficient Fluoride Removal from Aqueous Solutions |
| title_sort | aluminum loaded bifunctional resins for efficient fluoride removal from aqueous solutions |
| topic | aluminum resin fluoride removal adsorption ligand exchange |
| url | https://www.mdpi.com/2076-3417/15/14/7829 |
| work_keys_str_mv | AT mengfeima aluminumloadedbifunctionalresinsforefficientfluorideremovalfromaqueoussolutions AT yingpenggu aluminumloadedbifunctionalresinsforefficientfluorideremovalfromaqueoussolutions AT ruijiewang aluminumloadedbifunctionalresinsforefficientfluorideremovalfromaqueoussolutions AT yuesun aluminumloadedbifunctionalresinsforefficientfluorideremovalfromaqueoussolutions |