Adsorptive Removal of Copper (II) Ions from Aqueous Solution Using a Magnetite Nano-Adsorbent from Mill Scale Waste: Synthesis, Characterization, Adsorption and Kinetic Modelling Studies

Table 1 The remanence (M_r), saturation magnetization (M_s), coercivity (H_c) and TEM particle size of MNA nano-absorbent

Sample (h)	Remanence, M_r(emu/g)	Saturation magnetization, M_s(emu/g)	Coercivity, Hc (G)	Approximation particle size by HRTEM (nm)
3	1.53	21.12	199.99	16.54
5	5.44	22.69	270.24	15.98
7	6.61	27.34	262.18	11.23