From: Enhancement of TiO2 activity under visible light by N,S codoping for Pb(II) removal from water
Photocatalyst
TiO2
TiO2-N,S (1:1:0.5)
TiO2-N,S (1:1:1)
TiO2-N,S (1:1:1.5)
Wavelength (nm)
387
420
460
490
Eg (eV)
3.20
2.95
2.69
2.53