Preparation of Hydrophobic Octadecylphosphonic Acid-Coated Magnetite Nanoparticles for the Demulsification of n-Hexane-in-Water Nanoemulsions.

ABSTRACT: To design more environmentally friendly, economical, and efficient demulsifiers for oily wastewater treatment, hydrophobic octadecylphosphonic acid (ODPA)-modified Fe₃O₄ nanoparticles (referred to as Fe₃O₄@ODPA) were prepared by condensation of hydroxyl groups between ODPA and Fe₃O₄ nanoparticles using the co-precipitation method. The prepared magnetite nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscope (SEM), Fourier transform infrared (FTIR) spectroscopy, and thermogravimetric/differential thermogravimetric (TG/DTG) analysis. The water contact angles (θ_W) of Fe₃O₄@ODPA nanoparticles were more than 120°, in

SUBMITTER: Liang J 

PROVIDER: S-EPMC10419870 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature