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FTIR results showing the bands with significant shifting after Cu 2+ adsorption on HP (wavenumbers presented in cm -1 )

FTIR results showing the bands with significant shifting after Cu 2+ adsorption on HP (wavenumbers presented in cm -1 )

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The objective of the present study is the characterization of an adsorbent plant material based on Hypericum perforatum L. and the investigation of its feasibility for the removal of Cu2+ ions from aqueous solutions. XRD, TGA, FTIR, SEM and low-temperature nitrogen adsorption were used for the analytical characterization of the material. Particle s...

Contexts in source publication

Context 1
... contain many functional groups, such as hydroxyl, carbonyl, carboxyl and amino groups, with characteristic chemical structures. To determine the surface functional groups responsible for the adsorption properties of the studied plant, the FTIR spectra before and after Cu 2+ adsorption in the range of 4000-400 cm −1 were recorded and shown in Figure 8, and the bands where significant shifting is observed, are presented in Table 3. ...
Context 2
... contain many functional groups, such as hydroxyl, carbonyl, carboxyl and amino groups, with characteristic chemical structures. To determine the surface functional groups responsible for the adsorption properties of the studied plant, the FTIR spectra before and after Cu 2+ adsorption in the range of 4000-400 cm −1 were recorded and shown in Figure 8, and the bands where significant shifting is observed, are presented in Table 3. ...