Easily recoverable paper-type AlOOH-incorporated PVDF adsorbents for efficient fluoride ion removal under diverse wastewater conditions
Abstract As the environmental regulations in industrial processes become more stringent, the demand for cost-effective and convenient pollutant adsorbents, particularly fluoride ions, has intensified. This study presents a paper-type adsorbent, PA-1.25, integrating synthesized AlOOH with a high fluo...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-06-01
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| Series: | Applied Water Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s13201-025-02510-5 |
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| Summary: | Abstract As the environmental regulations in industrial processes become more stringent, the demand for cost-effective and convenient pollutant adsorbents, particularly fluoride ions, has intensified. This study presents a paper-type adsorbent, PA-1.25, integrating synthesized AlOOH with a high fluoride ion removal rate into polyvinylidene fluoride (PVDF). Unlike powder-type adsorbents, PA-1.25 offers a simplified recovery process with a 100% adsorbent recovery rate, eliminating the risk of secondary contamination. By addressing the inherent hydrophobicity of PVDF, PA-1.25 achieves improved water compatibility, enhancing its practical applicability in aqueous environments. At the same time, 95% of the incorporated AlOOH engages in fluoride ion adsorption, with an adsorption capacity of 6.26 mg/g, effectively reducing fluoride levels to meet the WHO guidelines of 1.5 mg/L. The high point of zero charge (10.6) in synthesized AlOOH ensures PA-1.25 performs consistently across a wide pH range. Additionally, PA-1.25 shows stable performance with co-existing ions and in industrial wastewater. PA-1.25 prevents adsorbent leakage and shows high efficiency in diverse wastewater environments, promising broad applications in environmentally friendly water treatment. |
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| ISSN: | 2190-5487 2190-5495 |