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Zeta potential of CS, WSCS30, and WSCS90 at different pHs.
| Samples | Zeta Potential (mV) | |||
|---|---|---|---|---|
| pH 5.0 | pH 6.0 | pH 7.0 | pH 8.0 | |
| CS | 22.70 ± 1.13 | 14.33 ± 0.65 | 4.52 ± 0.15 | −1.12 ± 0.27 |
| WSCS30 | 29.95 ± 0.49 | 20.8 ± 0.61 | 6.89 ± 0.04 | −0.21 ± 0.01 |
| WSCS90 | 27.30 ± 1.87 | 16.43 ± 0.55 | 5.36 ± 0.34 | −0.24 ± 0.07 |
