1. Magnetic material fieldMagnetic recording media: Ferric oxide as a magnetic material, its dispersion can be used to manufacture magnetic tape, disk and other magnetic recording media, these media in data storage, electronic equipment and other fields have important applications.
Magnetic sensors: Using its magnetic properties, ferric oxide dispersion can be used to prepare magnetic sensors, which play a role in detecting magnetic field changes, position measurement, etc.
2. Medical field
Magnetic resonance imaging (MRI) contrast agent: Ferric oxide nanoparticles as MRI contrast agent can enhance image contrast and improve diagnostic accuracy. Its superparamagnetism enables rapid magnetization in a magnetic field and rapid demagnetization after the magnetic field is removed, making it ideal for labeling specific tissues or organs.
Magnetic targeted drug delivery: Guided by external magnetic field, ferric oxide nanoparticles adsorbed or coated with drugs are accurately delivered to the lesion site, improving treatment efficiency and reducing side effects.
Magnetothermal therapy: The use of iron oxide nanoparticles in the alternating magnetic field to generate heat properties, can kill tumor cells, to achieve local treatment.
3. Environmental pollution control
Adsorption and degradation of harmful substances: Ferric oxide dispersion can be used to adsorb and degrade harmful substances such as heavy metal ions and organic pollutants, which helps to improve the quality of water and atmosphere.
4. Catalyst
Chemical reaction catalyst: In the chemical reaction, the dispersion of ferric oxide is often used as a catalyst, which can accelerate the chemical reaction speed and improve the reaction efficiency.
5. Pigments and polishes
Pigment: Ferric oxide dispersion can be used as pigment, widely used in ceramics, plastics, paint and other industries. Its deep black and good weather resistance, acid and alkali resistance make the product color more durable.
Polishing agent: In some applications, ferric oxide dispersion is also used as polishing agent to fine finish the surface of the material.
6. Other areas
Microwave absorption: Due to the unique magnetic and electrical properties of ferric oxide, its dispersion can be used in the field of microwave absorption.
Magnetic fluid seal: Through the application of an external magnetic field, the dispersion of ferric oxide can form a stable magnetic colloid, which is used to achieve a good sealing effect.
In summary, ferric oxide dispersion has important applications in many fields, and its unique magnetic and catalytic properties, as well as good stability and biocompatibility make it a multifunctional material.