ACF, oxidized by concentrated nitric acid and hydrogen peroxide, was analyzed by Boehm titration, FT-IR and TG The results of Boehm titration showed the acidic group amount of oxidized ACF increased obviously.

• 经浓硝酸和浓过氧化氢氧化ACF制得的氧化改性ACF,通过Boehm滴定分析表明氧化改性ACF表面酸性基团明显增加,也得到了FT-IR和TG的验证。