Siti Norsaffirah Zailan, Norsuria Mahmed, Nur Mawaddah Juzaini, Mohd Natashah Norizan, Ili Salwani Mohamad and Aissa Bouaissi (2024) “Magnetite (Fe3O4)-Activated Carbon Composite from Ground Coffee Waste for the Removal of Copper Ions (Cu2+) from Solution”, International Journal of Nanoelectronics and Materials (IJNeaM) , 17(December), pp. 147–153. doi: 10.58915/ijneam.v17iDecember.1618.