Eco-Friendly Method for Synthesis of Mn3O4 Nanoparticles and Their Characterization

Document Type : Original Article


1 Department of Chemistry-College of Education for Pure Science-University of Diyala

2 Chemistry, College of education for pure science, Diyala, Baqubah, IRAQ.

3 Department of Soil Sciences and Water Resources, College of Agriculture, University of Diyala, Baqubah – 32001, Iraq


Numerous strategies are used for preparing nanoparticles. The green preparation method is environmentally friendly, economical, simple, and faster nanoparticle production. Mn3O4 nanoparticles were prepared by a simple green chemical route using Manganese Dichloride Tetrahydrate (MnCl2.4H2O) as a precursor with Olive leaves extract as a stabilizer agent in the presence of Sodium hydroxide at room temperature. The products (Mn3O4 nanoparticles) were characterized and confirmed using Fourier Transform Infrared (FTIR), powder X‐ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), dynamic light scattering (DLS), and measure surface area. The formation of Mn3O4 nanoparticles was confirmed with an average size of 33.424 nm. The XRD measurements confirmed the presence of a crystalline Mn3O4 phase. Mn (OH)2 and Mn3O4 nanoparticles were investigated by FESEM analysis which gave nanoparticles with scale and cubic shape, respectively. The DLS suggested the particle size distribution appeared in two areas. The surface area of Mn3O4 was 2.0623 cm2g-1. The majority of existing pores were with a diameter of 2–90 nm (mesopores and macropores). Therefore; this green chemical method can be used for the preparation of Mn3O4 nanoparticles in a less time-consuming and in an environmentally friendly way.


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Volume 65, Issue 13 - Serial Number 13
Special Issue: Chemistry and Global Challenges
December 2022
  • Receive Date: 06 June 2022
  • Revise Date: 18 September 2022
  • Accept Date: 15 October 2022
  • First Publish Date: 15 October 2022