Figure 3From: Sorption of phosphate onto mesoporous γ-alumina studied with in-situ ATR-FTIR spectroscopyInfrared spectra of sorbed phosphate recorded from 1.0 mM and 0.5 mM aqueous phosphate solutions onto γ -alumina. The two upper curves are recorded at pH = 4.1 (after 20 min) and the lower curves at pH = 9.0 (after 20 min).Back to article page