Synthesis of calcium and iron oxide/hydroxide bifunctional materials for treating phosphate and hardness in water. - Tran, Le Ba; Nguyen Thi, Quynh Anh; Nguyen, Nhat Huy; Le, Tri Thich; Phan, Phuoc Toan; Padungthon, Surapol; Nguyen, Trung Thanh (Brazilian Journal of Chemical Engineering, 2025)