Table 4.
The shifts in FTIR bands of the (BPML) network with the introducing Er, Nd, and Er / Nd.
| New band | BPML | BPML: Er | BPML: Nd | BPML: Er/Nd-1 | BPML: Er/Nd-2 | BPML: Er/Nd-3 |
|---|---|---|---|---|---|---|
| - | 412 | 404 | 403 | 415 | 421 | |
| 455 | 455 | 466 | 451 | 456 | - | |
| New band | - | 482 | - | 481 | 476 | 493 |
| 501 | 513 | 513 | 519 | 523 | 534 | |
| 552 | 533 | 522 | - | - | - | |
| 618 | 605 | 593 | 612 | 604 | 597 | |
| 675 | - | - | - | - | - | |
| 718 | 696 | 700 | 698 | 697 | 699 | |
| 773 | - | - | 798 | 794 | - | |
| 827 | 802 | 825 | 823 | 833 | 816 | |
| 877 | 866 | 866 | 849 | 845 | 876 | |
| New band | - | 906 | 896 | 880 | 882 | 889 |
| 951 | 959 | 929 | 947 | 942 | 961 | |
| 1024 | 1029 | - | 1024 | 1024 | 1026 | |
| New band | - | 1069 | 1062 | 1076 | - | 1065 |
| 1104 | 1119 | 1119 | 1116 | 1103 | 1108 | |
| 1205 | 1230 | 1210 | 1217 | 1229 | 1206 | |
| 1268 | 1285 | 1296 | 1309 | 1312 | 1309 | |
| 1343 | 1347 | 1353 | 1356 | 1364 | 1348 | |
| 1392 | - | - | 1402 | 1390 | - | |
| 1455 | 1473 | 1481 | 1478 | 1484 | 1470 |