Skip to main content
. 2020 Nov 30;5(48):30906–30922. doi: 10.1021/acsomega.0c03688

Table 8. C 1s and O 1s XPS Data of WPC Biochar.

  C peak position
 C content %
 O peak position
 O content %
  
sample C1 C2 C3 C1 C2 C3 O2 O1 O2 O1 nO2/nO1
WPC 284.81 285.73   73.58 26.46   531.83 533.22 49.38 50.62 0.97
KOH 284.85 286.64   73.97 26.03   531.63 533.12 23.37 76.63 0.31
ZnCl2 284.85 286.12   68.05 31.95   531.72 533.22 9.35 90.65 0.10
H2SO4 284.78   287.24 69.79   30.21 531.80 533.04 21.92 78.08 0.28
H3PO4 284.79 286.64   68.80 31.20   531.91 533.02 23.69 76.31 0.31