Improving the colloidal stability of PEGylated BaTiO3 nanoparticles with surfactants

Barium titanate, BaTiO3, nanoparticles (NPs) have been widely used as a ferroelectric/piezoelectric/ pyroelectric material in the electronic-optical ceramic industry. However, stability of BaTiO3 NP suspension is matter concern for their advanced applications wet-ceramic manufacturing, imaging, and electrorheological fluids. In this study, we investigated effect three different surfactants (sodium dodecylbenzenesulfonate (anionic), cetyltrimethylammonium bromide (cationic), sorbitan monooleate (non-ionic)) on PEGylated two solvents (water ethylene glycol) by means dynamic light scattering, ζ potential, UV–visible spectroscopy, scanning electron microscopy, visual observation. Our findings indicate that anionic surfactant acted best stabilizer nanofluids, while cationic was least favorable both water glycol, due to balance between attraction repulsive forces. The results research provide simple effective approach control improve colloidal nanoparticles.