A novel Fe-La-Ce tri-metallic composite for the removal of fluoride ions from aqueous media

- The maximum adsorption capacity (303.03 mg/g at pH 4.00) was higher than the most reported fluoride adsorbents.
- Careful composition analysis has confirmed that detectable levels of these metals has not leached to aqueous environments.
- The minimal interference for the fluoride adsorption were observed from chloride ions and sulphate ions.
- Fe-La-Ce tri-metallic composite exhibits excellent regeneration (desorption is 96.13%) and reusability, hence this could be an ideal adsorbent for fluoride ions.