Zeta potential of anatase (TiO2) in mixed solvents

A Model for the Shift of Isoelectric Points of Oxides in Concentrated and Mixed-Solvent Electrolyte Solutions

“…disappears completely (1,2). Similar behavior has been observed in mixed solvents at essentially lower electrolyte concentrations (1,3,4). Quite a large amount of experimental data of this kind has been obtained over the past decade (see references in (1)).…”

“…through the surface potential. Thus, at higher electrolyte concentrations within the pH range between the "low concentration" and the actual i.e.p., the ζ -potential and surface charge density have opposite signs, which is exactly what was observed experimentally in (3,4). Figure 1 shows examples of ζ vs pH curves for several salt concentrations obtained through the numerical solution of the nonlinearized Poisson-Boltzmann equation.…”

Graphene-wrapped hierarchical TiO2 nanoflower composites with enhanced photocatalytic performance

“…-OH groups) and lowers its isoelectric point (the isoelectric point of TiO2 is within the range of pH = 6 -7.5). 193,206,207 The photocatalyst experiments are conducted at pH ~ 6.5. Given that MB is positively charged in solution, 53 it is expected that the negatively charged G-TiO2 composite will attract positively charged MB more effectively than TiO2.…”

The Specific Adsorption of Sodium Cations on Less Common Metal Oxides at High Ionic Strengths

“…Reagent grade india from Ventron and niobia from Schuchardt were purified following the procedure described elsewhere (15). India was a pure cubic In 2 O 3 , and no foreign peaks were detected by X-ray diffraction (XRD).…”