Adsorptive properties and on-demand magnetic response of lignin@Fe₃O₄ nanoparticles at castor oil-water interfaces.

ABSTRACT: Lignin@Fe₃O₄ nanoparticles adsorb at oil-water interfaces, form Pickering emulsions, induce on-demand magnetic responses to break emulsions, and can sequester oil from water. Lignin@Fe₃O₄ nanoparticles were prepared using a pH-induced precipitation method and were fully characterized. These were used to prepare Pickering emulsions with castor oil/Sudan red G dye and water at various oil/water volume ratios and nanoparticle concentrations. The stability and demulsification of the emulsions under different magnetic fields generated with permanent magnets (0-540 mT) were investigated using microscopy images and by visual inspection over time. The results showed that the Pickering emulsions were more stable at the castor oil/water ratio of 50/50 and

SUBMITTER: Hasan MJ 

PROVIDER: S-EPMC9850361 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature