Table 3 EDX surface analysis of activated carbons.

From: Twigs-derived activated carbons via H3PO4/ZnCl2 composite activation for methylene blue and congo red dyes removal

Activated carbon

Mass of element (wt%)

Carbon

Zinc

Phosphorus

Sulphur

Sodium

TAC2

81.1

4.00

0.47

TAC3

95.3

4.41

0.13

0.14

TAC5

73.6

11.6

14.7

0.10