Table 4 Relative content of the surface functional groups before and after NO removal28.

From: Co-blending modification of activated coke using pyrolusite and titanium ore for low-temperature NOx removal

Groups

Binding energy (eV)

Relative content (%)

AC

DNOAC

(P/Ti-1/2)15@AC

DNO(P/Ti-1/2)15@AC

C–C

284.6

76.51

74.76

72.09

70.48

C–O

285.1–286.1

16.11

17.85

19.43

22.43

C=O

286.8–288.3

3.48

3.62

4.16

4.08

π–π*

288.6–291.5

3.92

3.77

4.32

3.01

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