Table 1 Selected FTIR spectrums of the parent ligands (GA, Gly) and Ng-CuGA.
From: One-step synthesis of nitrogen-grafted copper-gallic acid for enhanced methylene blue removal
IR spectra (cm-1) | Assignment | ||
|---|---|---|---|
Gly | GA | Ng-CuGA | |
1033 | 1027 | 1097 | v(C–O) or v(C–N) |
1333 | 1319 | 1385 | v(OH)—bending |
1413 | 1426 | 1424 | v(C–O) or v(C–N) |
– | 1541 | 1540 | v(C = C) |
3169 | – | 3161 | v(NH) |
– | 3282 | 3329 | v(OH)—carboxyl |
– | 3496 | 3421 | v(OH)—hydroxyl |
