β-CD@Fe3O4 Nano-Intelligent Magnetic Material

Oily sludge is one of the main pollutants produced in oil extraction and transportation. It has the characteristics of large output, complex composition, and difficult handling. A nano intelligent magnetic material β-CD@ Fe3O4 was prepared by hydrothermal and surface modification methods. Its size is about 300nm, which can intelligently find the oil-water interface and the oil-solid interface.