Patent ID: 11969708
Assignee: KING SAUD UNIVERSITY
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  E | IPC B  C  E

Claim 1:
2. The method for preparing nanoparticles modified by a cardanol imidazolium ionic liquid as recited in claim 1, wherein the nanoparticles comprise magnetite nanoparticles capped with a cardanol imidazolium ionic liquid, the method comprising:
stirring magnetite in water;
adding NH4OH to the magnetite in water to obtain a pH of about 10;
adding oleic acid to obtain a ferrofluid;
adding a solution of the cardanyl imidazolium ionic liquid selected from the group consisting of a cardenyl polyethoxy imidazolium ionic liquid (CEOIm), a dicardenoxy imidazolium ionic liquid (DCIm), a dicardnyl tri-imidazolium ionic liquid (DCTIm), and a combination thereof in dichloromethane and ethanol with subsequent adding of an excess of ferrofluid to obtain a magnetic hybrid capped with the oleic acid as an inner layer and the cardanyl imidazolium ionic liquid as an outer layer; and
separating the capped magnetic hybrid by using a magnet.