The binding properties of copper and lead onto compost-derived DOM using Fourier-transform infrared, UV–vis and fluorescence spectra combined with two-dimensional correlation analysis

Impact of drying/wetting conditions on the binding characteristics of Cu(ii) and Cd(ii) with sediment dissolved organic matter

“…5 These results suggest that the binding ability of DOM towards Cu(II) ions follows the order of proteinlike / humic-like at 0 d for the wetting group and protein-like / humic-like / fulvic-like for the drying group. Protein-like substances were more dominant in the DOM-Cu(II) interaction process, similar to that found by Guo et al, 14 who used Fourier-transform infrared, UV-Vis and uorescence spectra combined with two-dimensional correlation to clarify the binding properties of copper and lead onto compost-derived DOM. In addition, according to the report of Gou et al, 14 the intensities for the auto-peaks can be ordered as follows: wetting group (Corr.…”

“…Protein-like substances were more dominant in the DOM-Cu(II) interaction process, similar to that found by Guo et al, 14 who used Fourier-transform infrared, UV-Vis and uorescence spectra combined with two-dimensional correlation to clarify the binding properties of copper and lead onto compost-derived DOM. In addition, according to the report of Gou et al, 14 the intensities for the auto-peaks can be ordered as follows: wetting group (Corr. ¼ 110 310.605) > drying group (Corr.…”

“…Metal ions can result in uorescence quenching for DOM, which serves as an effective indicator for the analysis of the binding properties of DOM with heavy metals. 14 Currently, techniques used for characterizing organic matter include ultraviolet-visible spectroscopy (UV-Vis), Fourier-transform infrared spectroscopy (FTIR), Fourier-transform ion cyclotron resonance mass spectrometry, chromatography, and synchronous uorescence spectra (SFS). 15,16 Owing to the complexity of the components of sediment DOM, it is difficult to evaluate the composition and interaction of substances with only one spectral technique.…”

“…15,16 Owing to the complexity of the components of sediment DOM, it is difficult to evaluate the composition and interaction of substances with only one spectral technique. 14,17 Therefore, three spectral techniques, namely, UV-Vis, FTIR, and SFS, were used in this study. The objectives of this work were as follows: (a) to determine and discuss the difference in the structural characteristics of sediment DOM under drying and wetting conditions using spectral analysis combined with a parallel factor analysis (PARAFAC) model; (b) to comparatively analyze the binding capacities, stability constants, and binding site sequence for Cu(II) and Cd(II) with sediment DOM under drying/wetting conditions using two-dimensional correlation spectroscopy analysis combined with FTIR (2D-FTIR-COS) and SF spectra (2D-SFS-COS); and (c) to reveal the impact of drying/wetting conditions on the binding of DOM with heavy metals.…”

Effects of digestate on biomass of a selected energy crop and soil properties

“…DOM combined with spectral analysis techniques can be used to assess the humification and aromaticity of soil 20 . Recently, two‐dimensional correlation spectroscopy (2D‐COS) in combination with fluorescence, Fourier‐transform infrared and UV‐vis spectra can amplify spectral resolution and overcome the overlap problem of fluorescence peaks, 21 and further identify the sequence of component and structure of DOM when the external environment was changed 22 …”