《Table 2–Infrared spectroscopy (IR) absorption bands.》

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《Investigation of adsorption/desorption behavior of Cr(Ⅵ) at the presence of inorganic and organic substance in membrane capacitive deionization(MCDI)》

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The comparison of experimental data and kinetic models for Cr（VI）were represented in Fig.5，and the kinetic model parameters estimated values for Cr（VI）are shown in Table 3.For the solution F1–F9，a comparative graph of experimental and calculated value of the absorption amount（mg/g）showed that Cr（VI）absorption was in good agreement with the pseudo-first-order model.As presented in Table 3，the correlation coefficients，R2，showed that the pseudo-first-order model fitted better the experimental data than the pseudo-second-order model（Li et al.，2009）.These results suggested that the electrosorption was because of electrostatic interactions between ions and electrodes.