Siti Norsaffirah Zailan, Norsuria Mahmed, Nur Mawaddah Juzaini, Mohd Natashah Norizan, Ili Salwani Mohamad, Aissa Bouaissi. Magnetite (Fe3O4)-Activated Carbon Composite from Ground Coffee Waste for the Removal of Copper Ions (Cu2+) from Solution. IJNeaM [Internet]. 2024 Dec. 27 [cited 2025 Jan. 11];17(December):147-53. Available from: https://ejournal.unimap.edu.my/index.php/ijneam/article/view/1618