Figure 8
From: Adsorption mechanism of Cr(VI) onto GO/PAMAMs composites

(a) Full scale XPS spectra and (b) high-resolution XPS spectra of C1s of GO/PAMAMs and GO/PAMAMs adsorbed Cr(VI), (c) high-resolution XPS spectra of Cr2p of GO/PAMAMs adsorbed Cr(VI).