Attribution of the main vibrational modes of Alg/Zn xerogel and aerogel materials.
| Sample | (O–H) | (COO−)asym | (COO−)sym | (C–O) |
|---|---|---|---|---|
| Sodium alginate | 3244 | 1596 | 1404 | 1023 |
| Alg/Zn-X1 | 3278 | 1590 | 1415 | 1026 |
| Alg/Zn-A1 | 3269 | 1594 | 1422 | 1030 |
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