Synthesis, phase transformation, and morphology of hausmannite Mn3O4 nanoparticles: photocatalytic and antibacterial investigations

Anu Sukhdev; Malathi Challa; Lakshmi Narayani; Adalagere Somashekar Manjunatha; P R Deepthi; Jagadeesha V Angadi; P Mohan Kumar; Mehaboob Pasha

doi:10.1016/j.heliyon.2020.e03245

Synthesis, phase transformation, and morphology of hausmannite Mn₃O₄ nanoparticles: photocatalytic and antibacterial investigations

Heliyon. 2020 Jan 31;6(1):e03245. doi: 10.1016/j.heliyon.2020.e03245. eCollection 2020 Jan.

Authors

Anu Sukhdev¹, Malathi Challa², Lakshmi Narayani^{2

3}, Adalagere Somashekar Manjunatha⁴, P R Deepthi¹, Jagadeesha V Angadi¹, P Mohan Kumar¹, Mehaboob Pasha¹

Affiliations

¹ Material Research Centre,Presidency University, Bengaluru, 560 064, India.
² Department of Chemistry, Ramaiah Institute of Technology, Bengaluru, 560 054, India.
³ Department of Chemistry, MES College of Arts, Commerce and Science, Bengaluru, 560 003, India.
⁴ Department of Chemistry, Don Bosco Institute of Technology, Bengaluru, 560 074, India.

Abstract

Nano structured Hausmannite (Mn₃O₄) has efficacious applications in numerous fields, such as catalytic, medical, biosensors, waste water remediation, energy storage devices etc. The potential application in wastewater treatment is due to its distinct structural features combined with fascinating physicochemical properties. Another area of interest is the oxidative properties imparted due to its reduction potential. Larger surface to volume ratio and high reactivity than the bulk form shows great progress as antimicrobial agent to control drug resistant microbial population. The distinct surface morphologies, crystalline forms, reaction conditions and synthetic methods exerts significant impact on the photo catalytic and bactericidal efficiency. Hence, the present paper focuses on a concise review of the multifarious study on synthetic methods of Mn₃O₄, growth mechanisms, structural forms, phase transformation and phase control, shape and dimensionality. The review also confers its applications towards photo catalytic and bactericidal studies.

Keywords: Antimicrobial activity; Biological sciences; Chemistry; Environmental science; Materials application; Materials chemistry; Materials property; Materials science; Methods of synthesis; Morphology; Nano hausmannite; Nanomaterials; Phase transformation; Photocatalyst.

Publication types

Review