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. Author manuscript; available in PMC: 2023 Sep 28.
Published in final edited form as: Chem Eng J. 2021 Jan 20;412:128582. doi: 10.1016/j.cej.2021.128582

Figure 8.

Figure 8.

a. As-K edge EXAFS (Fourier transforms of the χ functions) of As(V) adsorption to Fe(III)-chitosan and Ni(II)-chitosan with and without phosphate present, As(V) adsorption without phosphate present to Cu(II)-chitosan. b. As K-edge EXAFS of As(III) adsorption to Fe(III)-chitosan and Ni(II)-chitosan with and without phosphate present. Solid line indicate experimental data and dashed lines the fit to DFT calculated theoretical standards. Initial concentrations were 56 ppm As and 0.01 M NaCl, 56 ppm P, when present.