Table 3 Infrared (IR) vibration modes of calcium oxide synthesized via calcination of L.st and references.

From: Effective removal of heavy metal ions (Pb, Cu, and Cd) from contaminated water by limestone mine wastes

Assignments

Present study

Reference58

Reference59

ν Ca-O

426

–

424

ν C–O

1088

1063

866

ν C–O

1425

1441

1415

ν O–H

3643

3640

4643

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