Using the BAT-1 autotitrator to measure the zeta potentials of TiO2 at different pH

Zeta potential relies on the chemical composition of the particle surface and the medium environment such as salt concentration and pH. Therefore, a particle system may show various zeta potentials at different pH. Generally, the amphoteric materials tend to carry more positive charges in the low pH range and carry more negative charges in high pH range. In this application note from Bettersize Instruments, explore how the zeta potentials of titanium dioxide (TiO₂) at different pH were measured.