Figure 4
From: Sorption of phosphate onto mesoporous γ-alumina studied with in-situ ATR-FTIR spectroscopy
Infrared spectrum recorded for phosphate adsorbed onto mesoporous γ-alumina from a 500 μM phosphate solution at pH = 4.1 (upper curve as solid line). The adsorption time was 20 minutes. The five curve fitted sub-bands (dashed lines) shown resulted in a residual root mean square (RMS) error of 0.00069.