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Table 1 Standard binding energy values

From: Facile method to synthesize magnetic iron oxides/TiO2 hybrid nanoparticles and their photodegradation application of methylene blue

Samplesa Fe 2p3/2 O 1s Si 2p N 1s Ti 2p 3/2
Naked Fe3O4 nanoparticles 710.9 531.5    
APTES-coated Fe3O4 nanoparticles 710.5 531.5 102.5 399.5  
Hybrid nanoparticles (FT-3) 710.0 530.0 101.4 400.7 458.3
Standard value 710.5b 531.4c, 529.9d 103.3e 399.8f 458.8g
  1. Standard binding energy values for Fe 2p, Si 2p, N 1s, O 1s, and Ti 2p and those resolved in the naked, amino-functionalized, and titania coating ultrafine Fe3O4 nanoparticles. aUnit for binding energy: eV; bFe in Fe3O4; cO in Fe3O4; dO in TiO2; eSi in SiO2; fN in N-C group; g Ti in TiO2, Δ = 5.54 eV