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(A) ζ potential measurements of plain CaCO3 microparticles (ζ = −20.90 ± 2.12 mV, cond. = 36.7 μS/cm) and C-TherMods (ζ = +11.80 ± 5.91 mV, cond. = 67.3 μS/cm) and (B) FT-IR spectra of plain CaCO3 (spectrum a), CaCO3 loaded with CeO2 nanoparticles (spectrum b), free CeO2 nanoparticles (spectrum c), and C-TherMods (spectrum d).
