Element

CBD method

Drop-Cast method

Dip-Coating method

Weight %

Atomic %

Weight %

Atomic %

Weight %

Atomic %

O

20.19

52.53

29.13

51.03

20.19

50.53

Na

15.28

18.86

15.28

18.63

10.83

18.86

Si

20.55

06.78

20.55

20.51

4.76

6.78

Cl

02.47

03.09

3.36

2.35

2.74

3.09

Sn

61.48

20.74

31.68

7.48

61.48

20.74