Joshi, Naveen Chandra, et al. “Green Synthesis and Characterization of α-Fe2O3 Nanoparticles Using Leaf Extract of Syzygium Cumini and Their Suitability for Adsorption of Cu(II) and Pb(II) Ions”. Asian Journal of Chemistry, vol. 31, no. 8, June 2019, pp. 1809-14, doi:10.14233/ajchem.2019.21797.