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- Lee, Myoungjae, et al. Show all 6 Authors
- Journal of colloid and interface science 2016 v.483 pp. 177-184
- adsorption; energy; hydrogen bonding; ionic strength; isoelectric point; nanoparticles; pH; quartz crystal microbalance; silica; sodium chloride; zeta potential
- ... We have investigated the surface chemistry of SiO2 nanoparticles (NPs) with different sizes and their corresponding interactions with a flat substrate of surface curvature ∼0. As the size of the NPs increases, the SiO2 surface is increasingly covered with H-bonded silanol groups, thereby increasing the ζ-potential and shifting the isoelectric point higher in pH. Interactions between the SiO2 NPs a ...