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. 2020 Jan 16;10:458. doi: 10.1038/s41598-019-56872-3

Figure 4.

Figure 4

TEM images of BaSO4 transferred from remaining solids onto TEM grids (scale bar corresponds to 500 nm for (A,B) and 1 µm for (D). Panels: A as-produced particles; (B,D) after 72 hours of treatment in the flow-through cells with PSF. C shows the TEM particle size analysis of pristine BaSO4 particles (orange) and BaSO4 particles after treatment in PSF (blue) (NA = 331; NB = 280).