Table 4 FTIR analysis result of calcinated nendran banana peel powder

3133.09

2500–3300

O–H stretch

Carboxylic acid

Strong and broad

1441.87

1450

C-H bending

Alkane

Medium

1351.68

1370- 1335

S = O stretching

Sulfonamide

Strong

1133.84

1150- 1085

C- O stretching

Aliphatic ether

Strong

1014.26

1400 – 1000

C-F stretching, Si -O—Si bonds

Fluoro compound

Strong

879.14

880 ± 20

C-H bending

1,2,4 tri substituted

Strong

812.12

810 ± 20

C-H bending

1,4 di substituted

Strong

700.94

745–690

M–O stretching

Oxide derivative

-

673.16

690—515

Si–O vibration

Oxide derivative

Strong

565.67

600- 500

K–O, Ca-O stretching

Oxide derivative

Strong

466.84

1000- 400

-

Fingerprint region

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