Table 5.
The results of XPS C 1 s and O 1 s multiplets peak fitting.
| Sorbents | C-C | C-O | O2− | OH− | H2O | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BEa (eV) | FWHMb (eV) | At.c (%) | BE (eV) | FWHM (eV) | At. (%) | BE (eV) | FWHM (eV) | At. (%) | BE (eV) | FWHM (eV) | At. (%) | BE (eV) | FWHM (eV) | At. (%) | |
| BC@MnO2-26.6 | 284.3 | 1.28 | 78.4 | 285.2 | 1.88 | 21.6 | 529.5 | 1.20 | 63.2 | 530.2 | 1.73 | 26.6 | 531.8 | 1.47 | 10.2 |
| BC@MnO2-26.6-Pb | 284.3 | 1.18 | 67.4 | 285.1 | 1.56 | 32.6 | 529.2 | 1.14 | 67.4 | 530.4 | 1.76 | 23.0 | 531.8 | 1.63 | 9.6 |
aBinding energy.
bThe FWHM of all peaks were constrained.
cAt. represents the percentage of the contribution for each peak to the total number of counts under the Mn 2p3/2 or O 1 s peak, and all peaks modeled as 70% Gaussian-30% Lorentzian.