Table 1.

The content of total acidic functional groups in raw and treated carbon fibers.

Carriers Properties	Raw-CF	CF-Nh1	CF-Nh3	CF-Nh6
Total acidity (mmol∙g−1)	0.244 ± 0.011	0.365 ± 0.014	0.949 ± 0.023	1.38 ± 0.015