Table 2.
The UV-vis transmittance and opacity of CMC (C1), CMC/TiO2-2% (C2) and activated nanocomposites by 150, 300 and 450 mg/mL S. persica extract
| Sample | Tr280 (%) | Tr600 (%) | Opacity |
|---|---|---|---|
| C1 | 64.34±0.25a | 92.43±0.94a | 0.43±0.03d |
| C2 | 50.64±0.17b | 80.04±0.7b | 0.94±0.04c |
| SPE150 | 0.00±0c | 62.04±0.21b | 1.86±0.09c |
| SPE300 | 0.00±0c | 39.69±0.15c | 3.54±0.26b |
| SPE450 | 0.00±0c | 30.86±0.15d | 4.15±0.11a |
Abbreviations: C1, CMC film; C2, CMC/TONP-2% nanocomposite; CMC, carboxymethyl cellulose; SPE, Salvadora persica L. root extract; SPE150, SPE300, and SPE450, CMC/TONP-2% containing 150, 300, and 450 mg/ml of SPE, respectively; TONP, TiO2 nanoparticles; Tr280, light transmittance at 280 nm; Tr600, light transmittance at 600 nm; UV-vis, ultraviolet-visible light.