Wan-Tae Kim Joo-Won Lee Hong-Eun An Cho, So Hye Jeong, So Hee 2024-01-12T06:32:35Z 2024-01-12T06:32:35Z 2023-11-21 2023-11 2079-4991 https://pubs.kist.re.kr/handle/201004/79756 Fluoride ion is essential for health in small amounts, but excessive intake can be toxic. Meeting safety regulations for managing fluoride ion emissions from industrial facilities with both cost-effective and eco-friendly approaches is challenging. This study presents a solution through a chemical-free process, producing a boehmite (AlOOH) adsorbent on aluminum sheets. Utilizing cost-effective Al foil and DI water, rather than typical precursors, yields a substantial cost advantage. The optimized AlOOH adsorbent demonstrated a high fluoride ion removal rate of 91.0% in simulated wastewater with fluoride ion concentrations below 20 ppm and displayed a similar performance in industrial wastewater. Furthermore, the AlOOH adsorbent exhibited excellent reusability through a simple regeneration process and maintained stable performance across a wide pH range of 4 to 11, demonstrating its capability to adsorb fluoride ions under diverse conditions. The efficiency of the AlOOH adsorbent was validated by a high fluoride ion removal efficiency of 90.9% in a semi-batch mode flow cell, highlighting its potential applicability in engineered water treatment systems. Overall, the AlOOH adsorbent developed in this study offers a cost-effective, eco-friendly, and sustainable solution for effectively removing fluoride ion from surface waters and industrial wastewaters. English MDPI Efficient Fluoride Wastewater Treatment Using Eco-Friendly Synthesized AlOOH Article 10.3390/nano13212838 1 Nanomaterials, v.13, no.21 Nanomaterials 13 21 Y scie scopus 001099397900001 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article ALUMINUM-OXIDE HYDROXIDE AQUEOUS-SOLUTION TEA WASTE REMOVAL ADSORPTION DEFLUORIDATION AL ADSORBENT HYDRATION NANOCOMPOSITES AlOOH wastewater fluoride ion removal