Skip to main content
Heritage Science

Table 2 XPS curve-fitted data of the detailed regions of sample BS (Fig. 9)

From: A green approach to clean iron stains from marble surfaces

Element/orbital

Corrected BE

(eV ± 0.2 eV)

Normalized Area

Assignments

(from NIST database, literature data

and standard analyses)

C1s

282.8

3393

C–C aromatics

284.3

285.0

7576

C–C aliphatics

286.4

1454

C–O–C, C-N, C–OH, *ф-OH

288.5

1483

*ф –CO–O, -CO-NH2

289.7

9158

CO32−

S2p

168.6

188

S linked to an aromatic ring/ SO42−/ SO32−

O1s

531.6

30,157

●

Ca2p

345.1

462

Ca, CaO

347.2

9137

CaCO3

  1. (●) O1s: total area accounts for all the oxygenated species, taking into account the stoichiometric coefficients of each chemical group in the given compound, in the limits of XPS accuracy (± 10%) [45]
  2. Ф = aryl group
Back to article page