Fig. 1From: Enhancement of TiO2 activity under visible light by N,S codoping for Pb(II) removal from waterThe SRUV Spectra of a TiO2, b TiO2-N,S(1:1:0.5), c TiO2-N,S(1:1:1), and d TiO2-N,S(1:1:1.5)Back to article page