Adsorptive removal of copper (II) Ions from aqueous solution using a magnetite nano-adsorbent from mill scale waste: synthesis, characterization, adsorption and kinetic modelling s... by Sulaiman, Syazana, Azis, Raba'ah Syahidah, Ismail, Ismayadi, Che Man, Hasfalina, Muhammad Yusof, Khairul Faezah, Abba, Muhammad Umar, Katibi, Kamil Kayode