Product Properties
Iron Oxide (Fe3O4) nanopowder/nanoparticles (nm & um)
Size | Type | Particle size（nm） | Purity（%） | Specific surface area（m2/g） | Bulk density（g/cm3） | Polymorphs | Color |
nm | JB-Fe3O4-001 | 40 | 99.9 | 33 | 0.78 | spherical | black |
Custom | Acccording to customers requirment. (30-800nm etc) | ||||||
Iron Oxide (Fe3O4) Nanopowder Main Feature
- Superparamagnetism: At the nanoscale, Fe3O4 particles exhibit superparamagnetism, a form of magnetism which occurs in small ferromagnetic or ferrimagnetic nanoparticles. In the absence of an external magnetic field, these nanoparticles do not retain magnetization, preventing the agglomeration of particles due to magnetic attraction. However, when an external magnetic field is applied, they become strongly magnetized.
- High Magnetic Responsiveness: Fe3O4 nanoparticles respond quickly and significantly to an external magnetic field, making them highly suitable for various magnetic applications. This property allows for the controlled manipulation of Fe3O4 nanoparticles using magnetic fields, which is beneficial in data storage, magnetic resonance imaging (MRI), and targeted drug delivery systems.
- Zero Remanence and Coercivity: In their superparamagnetic state, Fe3O4 nanoparticles exhibit zero remanence and coercivity when the external magnetic field is removed. This means they do not retain any magnetization in the absence of a magnetic field, which is particularly useful for applications where the reversible magnetization is crucial.
- High Surface Area: Like other nanoparticles, Fe3O4 nanopowder has a high surface area-to-volume ratio, enhancing its reactivity and interaction with other substances. This makes it an excellent candidate for catalysis, environmental remediation, and as a carrier for drug delivery.
- Chemical Stability: Fe3O4 nanoparticles are chemically stable under a wide range of conditions, making them suitable for various applications, including those in harsh environments.
- Biocompatibility: Fe3O4 is considered biocompatible, allowing for its use in biomedical applications, including in vivo applications, without significant toxicity to the body.
Iron Oxide (Fe3O4) Nanopowder Applications
- Magnetic Resonance Imaging (MRI): Fe3O4 nanoparticles are used as contrast agents in MRI to improve image quality, providing clearer and more detailed images of internal body structures.
- Water Treatment: Fe3O4 nanoparticles are effective in removing contaminants, such as heavy metals, dyes, and organic pollutants from water, due to their high surface area and ease of separation from water using a magnetic field.
- Air Purification: They can also be used in air purification systems to adsorb and remove toxic gases and particulate matter.
Catalysis: Fe3O4 nanoparticles serve as catalysts or catalyst supports in various chemical reactions, including the synthesis of organic compounds, due to their high surface area and active sites.
- Lithium-Ion Batteries: Fe3O4 nanoparticles are explored as anode materials in lithium-ion batteries, offering high capacity and rate capability.
- Photocatalysis: They are used in photocatalytic applications to harness solar energy for water splitting to produce hydrogen or for the degradation of pollutants.