Measuring zeta potential of ceramic membranes

The zeta potential was measured using a special measuring cell for ceramic membranes within an electrokinetic analyzer (SurPASS^TM3, Anton Paar GmbH, Graz, Austria). The membranes were wetted with a 0.001 M KCl solution, which was also used as a background electrolyte. 0.1 M NaOH was used as the titration liquid for the determination of the zeta potential on the pH dependence in the range from pH = 3 to pH = 9. The zeta potential was calculated from the measured streaming flow using the Helmholtz–Smoluchowski equation, as in our previous work [15 (link)].

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, & Simonič M. (2022). Nanofiltration of the Remaining Whey after Kefir Grains’ Cultivation. Membranes, 12(10), 993.

Publication 2022

SurPASSTM3

Cell membranes Electrolyte Membranes Titration

Corresponding Organization : University of Maribor

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Variable analysis

dependent variables

Zeta potential

control variables

0.001 M KCl solution as background electrolyte
0.1 M NaOH as titration liquid

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