HAEMATITE NANOPARTICLES AS A VERSATILE MATERIAL WITH DIVERSE APPLICATIONS: REVIEW

Abstract

Haematite nanoparticles (α-FeO₃) have drawn attention due to their special qualities and versatility across a range of sectors. These nanoparticles are a good choice for commercial and scientific applications because of their remarkable chemical stability, cost-effectiveness, and environmental compatibility. They have special electrical, optical, and magnetic properties due to their nanoscale size, which are enhanced by high surface energy and quantum confinement events. Haematite nanoparticles' efficient absorption of visible light, chemical inertness and biocompatibility make them especially valuable in photoelectrochemical water splitting, pollutant degradation, and biomedical applications. The size, shape, and surface characteristics of haematite nanoparticles can be exquisitely controlled by advanced synthesis techniques such sol-gel method and hydrothermal, co-precipitation, microwave-assisted synthesis, and sonochemical processes, which makes them perfect for certain applications. Among its many advantages are scalability, energy efficiency, and high purity, there are drawbacks including limited scalability and high equipment expenses. To enhance the performance of haematite nanoparticles in a variety of applications, ongoing research focused on resolving charge transport and morphological issues. Their quantity, usefulness, and adaptability make them essential for advancing sustainable technology and addressing global issues.