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. 2021 Nov 21;14(22):7067. doi: 10.3390/ma14227067

Table 3.

Surface microgeometry and roughness parameters of Dowex M 4195 before and after the sorption of Cu(II).

Ion Exchanger Surface Microgeometry Maps
(Middle Part of the Cut Beads)
Surface Microgeometry Maps
(Edge Part of the Cut Beads)
Dowex M4195
Inline graphic
graphic file with name materials-14-07067-i008.jpg graphic file with name materials-14-07067-i009.jpg
Roughness parameters Ra—203.86 nm ± 27.72 nm
Rq—254.39 nm
Rt—2.62 um
Ra—24.41 nm ± 3.31 nm
Rq—31.10 nm
Rt—0.329 um
Dowex M4195-Cu(II)
Inline graphic
graphic file with name materials-14-07067-i011.jpg graphic file with name materials-14-07067-i012.jpg
Roughness parameters Ra—550.13 nm ±74.81 nm
Rq—999.39 nm
Rt—20.53 um
Ra—56.69 nm ± 7.71 nm
Rq—76.61 nm
Rt—0.952 um