1. J. Godt, F. Scheidig, C. Grosse-Siestrup, V. Esche, P. Brandenburg, A. Reich, D.A. Groneberg, The toxicity of cadmium and resulting hazards for human health, J. Occup. Med. Toxicol., 1 (2006) 22.
  2. M. Kato, S. Onuma, Y. Kato, N.D. Thang, I. Yajima, M.Z. Hoque, H.U. Shekhar, Toxic elements in well water from Malaysia, Toxicol. Environ. Chem., 9 (2010) 1609–1612.
  3. I.B. Koki, K.H. Low, H. Juahir, M.A. Zali, A. Azid, S.M. Zain, Consumption of water from ex-mining ponds in Klang Valley and Melaka, Malaysia: a health risk study, Chemosphere, 195 (2018) 641–652.
  4. F.L. Fu, Q. Wang, Removal of heavy metal ions from wastewaters: a review, J. Environ. Manage., 3 (2011) 407–418.
  5. Z. Jalil, A. Rahwanto, Mustanir, Akhyar, E. Handoko, Magnetic behavior of natural magnetite (Fe3O4) extracted from beach sand obtained by mechanical alloying method, AIP Conf. Proc., 1862 (2017) 0300231–0300234.
  6. M.K. Shahid, S. Phearom, Y.-G. Choi, Adsorption of arsenic (V) on magnetite-enriched particles separated from the mill scale, Environ. Earth Sci., 3 (2019) 65.
  7. M.M. Syazwan, R.S. Azis, M. Hashim, I. Ismayadi, S. Kanagesan, A.N. Hapishah, Co-Ti- and Mn–Ti-substituted barium ferrite for electromagnetic property tuning and enhanced microwave absorption synthesized via mechanical alloying, J. Aust. Ceram. Soc., 2 (2017) 465–474.
  8. A.S.A.R. Arifin, I. Ismayadi, A.H. Abdullah, F.N. Shafiee, R. Nazlan, I.R. Ibrahim, Iron oxide nanoparticles derived from mill scale waste as potential scavenging agent in dye wastewater treatment for batik industry, Solid State Phenom., 268 (2017) 393–398.
  9. J.E. Doliente, Y.J. Kim, H.W. Nam, Y.Y. Choi, Mill scale–derived magnetite particles: effective adsorbent for the removal of phosphate in aqueous solutions, J. Environ. Eng., 143 (2017) 040170761–040170769.
  10. M.K. Shahid, S. Phearom, Y.-G. Choi, Synthesis of magnetite from raw mill scale and its application for arsenate adsorption from contaminated water, Chemosphere, 203 (2018) 90–95.
  11. N.M. Gaballah, A.F. Zikry, M.G. Khalifa, A.B. Farag, N.A. El-Hussiny, M.E.H. Shalabi, Production of iron from mill scale industrial waste via hydrogen, Open J. Inorg. Nonmetallic Mater., 3 (2013) 23–28.
  12. R.A.S. Azis, M. Hashim, N.M. Saiden, N. Daud, N.M.M. Shahrani, Study the iron environments of the steel waste product and its possible potential applications in ferrites, Adv. Mater. Res., 1109 (2015) 295–299.
  13. J. Gómez-Pastora, E. Bringas, I. Ortiz, Recent progress and future challenges on the use of high performance magnetic nano-adsorbents in environmental applications, Chem. Eng. J., 256 (2014) 187–204.
  14. E. Tombácz, A. Majzik, Z.S. Horvát, E. Illés, Magnetite in aqueous medium: coating its surface and surface coated with it, Rom. Rep. Phys., 3 (2006) 281–286.
  15. A. Hajalilou, M. Hashim, R. Ebrahimi-Kahrizsangi, H.M. Kamari, S. Kanagesan, Parametric optimization of NiFe2O4 nanoparticles synthesized by mechanical alloying, Mater. Sci.-Poland, 2 (2014) 281–291.
  16. L. Giraldo, A. Erto, J.C. Moreno-Piraján, Magnetite nanoparticles for removal of heavy metals from aqueous solutions: synthesis and characterization, Adsorption, 19 (2013) 465–474.
  17. Y.-M. Hao, C. Man, Z.-B. Hu, Effective removal of Cu (II) ions from aqueous solution by amino-functionalized magnetic nanoparticles, J. Hazard. Mater., 184 (2010) 392–399.
  18. J.F. de Carvalho, S.N. de Medeiros, M.A. Morales, A.L. Dantas, A.S. Carriço, Synthesis of magnetite nanoparticles by high energy ball milling, Appl. Surf. Sci., 275 (2013) 84–87.
  19. O. Hamdaoui, E. Naffrechoux, Modeling of adsorption isotherms of phenol and chlorophenols onto granular activated carbon: Part I. Two-parameter models and equations allowing determination of thermodynamic parameters, J. Hazard. Mater., 147 (2007) 381–394.
  20. C. Suryanarayana, Mechanical alloying and milling, Prog. Mater. Sci., 46 (2001) 1–184.
  21. M. Hosseinzadeh, S.A.S. Ebrahimi, S. Raygan, S.M. Masoudpanah, Removal of cadmium and lead ions from aqueous solution by nanocrystalline magnetite through mechanochemical activation, J. Ultrafine Grained Nanostruct. Mater. (JUFGNSM), 49 (2016) 72–79.
  22. N. Barka, K. Ouzaouit, M. Abdennouri, M. El Makhfouk, S. Qourzal, A. Assabbane, Y. Ait-Ichou, A. Nounah, Kinetics and equilibrium of cadmium removal from aqueous solutions by sorption onto synthesized hydroxyapatite, Desal. Wat. Treat., 43 (2012) 8–16.
  23. T.T. Bui, X.Q. Le, D.P. To, V.T. Nguyen, Investigation of typical properties of nanocrystalline iron powders prepared by ball milling techniques, Adv. Nat. Sci.: Nanosci. Nanotechnol., 4 (2013) 045003–045008.
  24. N.J. Yu, M.X. Pan, P.Y. Zhang, H.L. Ge, Q. Wu, Effect of milling time on the morphology and magnetic properties of SmCo5 nanoflakes fabricated by surfactant-assisted high-energy ball milling, J. Magn. Magn. Mater., 378 (2015) 107–111.
  25. B. Issa, I.M. Obaidat, B.A. Albiss, Y. Haik, Magnetic nanoparticles: surface effects and properties related to biomedicine applications, Int. J. Mol. Sci., 11 (2013) 21266–21305.
  26. W. Mozgawa, M. Król, T. Bajda, Application of IR spectra in the studies of heavy metal cations immobilization on natural sorbents, J. Mol. Struct., 924 (2009) 427–433.
  27. P.A. Gerakines, W.A. Schutte, J.M. Greenberg, E.F. van Dishoeck, The infrared band strengths of H2O, CO and CO2 in laboratory simulations of astrophysical ice mixtures, Astrophysics (astro-ph), 94 (1994) 09076–09081.
  28. S. Laurent, D. Forge, M. Port, A. Roch, C. Robic, L.V. Elst, R.N. Muller, Magnetic iron oxide nanoparticles: synthesis, stabilization, vectorization, physicochemical characterizations, and biological applications, Chem. Rev., 6 (2008) 2064–2110.
  29. S.K. Milonjić, M.M. Kopečni, Z.E. Ilić, The point of zero charge and adsorption properties of natural magnetite, J. Radioanal. Chem., 78 (1983) 15–24.
  30. M. Ma, Y. Wu, J. Zhou, Y.K. Sun, Y. Zhang, N. Gu, Size dependence of specific power absorption of Fe3O4 particles in AC magnetic field, J. Magn. Magn. Mater., 268 (2004) 33–39.
  31. M. Erdemoğlu, M. Sarıkaya, Effects of heavy metals and oxalate on the zeta potential of magnetite, J. Colloid Interface Sci., 300 (2006) 795–804.
  32. K.S.W. Sing, D.H. Everett, R.A.W. Haul, L. Moscou, R.A. Pierotti, J. Rouquérol, T. Siemieniewska, Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Recommendations 1984), Pure Appl. Chem., 57 (1985) 603–619.
  33. F. Ciesielczyk, P. Bartczak, T. Jesionowski, Removal of cadmium(II) and lead(II) ions from model aqueous solutions using sol–gel-derived inorganic oxide adsorbent, Adsorption, 22 (2016) 445–458.
  34. M.H. Ehrampoush, M. Miria, M.H. Salmani, A.H. Mahvi, Cadmium removal from aqueous solution by green synthesis iron oxide nanoparticles with tangerine peel extract, J. Environ. Health Sci., 13 (2015) 84.
  35. T.W. Weber, R.K. Chakravorti, Pore and solid diffusion models for fixed-bed adsorbers, AIChE J., 20 (1974) 228–238.
  36. Y. Cantu, Remediation of Trivalent and Hexavalent Chromium Ions from Aqueous Solutions Using Titanium Dioxide Polymorphs, Doctoral Dissertation, The University of Texas Rio Grande Valley, Texas, United States, 2017.