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. Author manuscript; available in PMC: 2019 May 9.
Published in final edited form as: Langmuir. 2018 May 24;34(22):6454–6461. doi: 10.1021/acs.langmuir.7b03741

Figure 2.

Figure 2.

Surface hydrophobicity of CeO2, Si-CeO2, BaSO4, and ZnO NPs determined by Rose Bengal partitioning. The relationships between NP surface areas and PQ are plotted. The data were then analyzed by performing linear regression. Following model fitting, the slopes of PQ for each NP were compared using SAS statistical software (SAS Institute, Inc. Cary, NC). The slopes of the linear regression lines are proportional to the relative hydrophobicity of NPs. The relative surface hydrophobicity was on the order of CeO2 > ZnO = BaSO4 > Si-CeO2 NPs.