Impact on CO₂ Uptake of MWCNT after Acid Treatment Study

Table 5

The content of C 1s constituents.

Component	CNT_pristine	CNT_HNO3	CNT_H2SO4/HNO3
Graphite	0.797	0.770	0.776
Defects	0.097	0.111	0.099
sp^3 C-N	0.000	0.001	0.002
sp^2 C=N	0.000	0.003	0.005
C=O	0.035	0.046	0.046
C-O	0.055	0.043	0.044
COOH	0.016	0.025	0.028