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. 2010 Nov 17;15(11):8431–8468. doi: 10.3390/molecules15118431

Figure 14.

Figure 14

k2-weighted EXAFS spectra (A) and the corresponding Fourier transforms (B) of reference samples and sorption samples. Eu(III) adsorbed on rutile at pH 5.0 (rutile/Eu5.0), at pH 4.0 (rutile/Eu4.0) and at pH 9.0 (rutile/Eu9.0). The presence of HA at pH 5.0 (rutile/HA/Eu5.0 and anatase/HA/Eu5.0).Eu(III) adsorbed on anatase at pH 5.0 (anatase/Eu5.0). C(TiO2) = 0.3 g/L, C(Eu(III))(initial) = 3.0 × 10-5 mol/L, C(NaClO4) = 0.01 mol/L, C(HA)(initial) = 7.5 mg/L, pH = 4.0 ± 0.1 or 5.0 ± 1, T = 25 ± 1 oC [97].