Table 1.
Casting solutions compositions and film casting conditions of the CA membranes free of silver (CA22, CA30, and CA34), with 0.1wt% Ag (CA22Ag0.1, CA30Ag0.1, and CA34Ag0.1) and with 0.4wt% Ag (CA22Ag0.4, CA30Ag0.4, and CA34Ag0.4).
| Casting Solution (wt%) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Membrane | CA22 | CA22Ag0.1 | CA22Ag0.4 | CA30 | CA30Ag0.1 | CA30Ag0.4 | CA34 | CA34Ag0.1 | CA34Ag0.4 |
| Cellulose acetate | 17.0 | 16.4 | 15.3 | 17.0 | 16.4 | 15.3 | 17.0 | 16.4 | 15.3 |
| Formamide | 22.0 | 21.2 | 19.8 | 30.0 | 29.0 | 27.0 | 34.0 | 32.8 | 30.6 |
| Acetone | 61.0 | 58.9 | 54.9 | 53.0 | 51.1 | 47.7 | 49.0 | 47.3 | 44.1 |
| AgNPs | |||||||||
| Dispersion | - | 3.32 | 9.59 | - | 3.32 | 9.59 | - | 3.32 | 9.59 |
| Silver | - | 0.14 | 0.41 | - | 0.14 | 0.42 | - | 0.14 | 0.41 |
| Casting Conditions | |||||||||
| Temperature of solution (°C) | 20–25 | ||||||||
| Temperature of atmosphere (°C) | 20–25 | ||||||||
| Solvent evaporation time (min) | 0.5 | ||||||||
| Gelation medium | Water at temperature of 0–3 °C during 1–2 h | ||||||||