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Table 3 XPS data of O 1 s composition of PCM-derived carbon adsorbents

From: Potassium citrate-derived porous carbon with high CO2 capture and Congo red adsorption performance

Sample

O1 (%)

O2 (%)

O3 (%)

O4 (%)

PCMCA-700

6.60

45.12

33.57

14.71

PCMCA-800

10.73

44.36

42.82

2.09

PCMCA-900

15.28

57.81

23.14

3.77