Kaolin-supported molybdovanado phosphoric acid as green catalyst for fluoride ion removal in waterSuranjana V. Mayani, Kantha Deivi Arunachalam, Rahul Nikam, Debleena Bhattacharya, Archana Sharma and Vishal J. MayaniE3S Web Conf., 603 (2025) 02011DOI: https://doi.org/10.1051/e3sconf/202560302011