Preparation method and application of superparamagnetic Fe3O4 nano material

• Main Authors: ZHU DEJIE, YAO LI, HAN CHENGLIANG, ZHANG LINGYUN, XU ZEZHONG
• Format: Patent
• Language: English
• Published: 03.02.2016
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a preparation method and application of a superparamagnetic Fe3O4 nano material, and relates to the technical field of nano materials. The preparation method comprises the following steps: dissolving solid FeCl3.6H2O into distilled water, stirring under room temperature, and fully dissolving, thus obtaining a solution a; slowly adding triethanolamine (TEA) into the solution a, continuously stirring, thus obtaining a brown red solution b, adjusting the pH value of the solution b by ammonia water or solid NaOH, thus obtaining a dark brown solution c, putting the solution c under a closed state for hydrothermal synthesis, and finally taking out a product by a magnetic separation method. The superparamagnetic Fe3O4 nano material prepared by the preparation method disclosed by the invehtion is better in water solubility, good in biocompatibility, high in adsorption performance and excellent in catalysis and magnetic property, can be applied to the fields such as magnetic resonance imaging, data storage, medicament and gene targeting, cell separation and sewage treatment, and has a wider application prospect.