Research Article
Colloid Systems and Interfaces Stability of Cerium Oxide Nanoparticles in Aqueous Environments: Effects of pH, Ionic Composition, and Suwanee River Humic and Fulvic Acids
Figure 13
Zeta potential of CeO2 NPs as a function of time in varying concentrations of NaCl or CaCl2 in the presence of FA at pH 8.2, pH 10.2, and pH 12.2: (a) FA, NaCl, and pH 8.2; (b) FA, CaCl2, and pH 8.2; (c) FA, NaCl, and pH 10.2; (d) FA, CaCl2, and pH 10.2; (e) FA, NaCl, and pH 12.2; and (f) FA, CaCl2, and pH 12.2.
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