Received: 17 Jan., 2020 Revised: 21 Apr., 2020 Accepted: 23 May, 2020 Hydrothermal Synthesis and Spectroscopic Characterization of one-dimentional Rod-like Hematite (α-Fe 2 O 3 ) Mineral in Alkaline Medium Abdus-Salam, N. 1 , John Godwin 1,2,3* and Bankim Chandra Tripathy 2 1 Department of Chemistry, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria 2 Hydro & Electrometallurgy Department, Institute of Minerals and Materials Technology, Bhubaneswar - 751 013, India 3 Department of Chemistry, Kogi State College of Education (Tecchnical), P.O.B 242 Kabba, Nigeria *Corresponding author: godwinjohn1380@gmail.com ABSTRACT Rod-like α-Fe 2 O 3 was synthesized by hydrothermal method and characterized using spectroscopic methods of analysis. X-ray diffraction (XRD), Fourier transform infrared (FTIR), X-field emission scanning electron microscopy (FESEM), elemental diffraction X- ray (EDX), transmission electron microscopy (TEM) and dynamic light scattering (DLS) methods were used to characterize the synthesized mineral. XRD analysis shows that the single-crystalline sample indexed as the pure rhombohedra α-Fe 2 O 3 material was formed while the DLS and zeta potential analysis indicated average particles sizes of about 1300.9 nm and 31.2 mV respectively. The morphology and shape of the synthesized mineral was studied with FESEM and TEM while the elemental analysis was done with EDX. FESEM and TEM analysis show that the synthesized α-Fe 2 O 3 minerals were rod-like in shape while EDX analysis gave a good composition of the elements of the synthesized material. Therefore, this method may be applied to synthesize other forms of iron minerals or other inorganic materials at industrial scale especially when rod-like materials are needed. Keywords: Synthesis, Hematite, characterization, rod-like Iron based minerals have been used for centuries in many applications such as in science, technology and engineering. The use of iron oxides, hydroxides and oxohydroxides in different scales or sizes has been applied in medicine, as coloring pigment and in environmental remediation. Other areas where iron minerals have been utilized include microbial sciences, imaging systems, pharmaceutical sciences, biological products, civil engineering, immobilization techniques, and chemical industries. Among these International Journal of Applied Science and Engineering Citation: IJASE: 8(1): 11-18, June 2020 DOI: 10.30954/2322-0465.1.2020.2