Hematite Core Nanoparticles with Carbon Shell: Potential for Environmentally Friendly Production from Iron Mining Sludge

• DOI: 10.1007/s11665-016-1964-0
• Publication Date: 2016-02-18T15:45:08Z
• Authors: Dragana Stević; Dijana Mihajlović; Radovan Kukobat; Yoshiyuki Hattori; Kento Sagisaka; Katsumi Kaneko; Suzana Gotovac At...
• Keywords: 7. Clean energy; 01 natural sciences; 0104 chemical sciences

Hematite nanoparticles with amorphous, yet relatively uniform carbon shell, were produced based exclusively on the waste sludge from the iron mine as the raw material. The procedure for acid digestion-based purification of the sludge with the full recovery of acid vapors and the remaining non-toxic rubble is described. Synthesis of the hematite nanoparticles was performed by the arrested precipitation method with cationic surfactant. The particles were thoroughly characterized and the potential of their economical production for the battery industry is indicated.