2021
DOI: 10.1016/j.ijbiomac.2020.12.022
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Xanthation of alginate for heavy metal ions removal. Characterization of xanthate-modified alginates and its metal derivatives

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Cited by 17 publications
(5 citation statements)
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“…Among these molecules, alginic acid is a very versatile green polymer used for heavy metal adsorption due to its availability, biocompatibility, low cost, and non-toxic characteristics. Alginates are anionic polysaccharides obtained from seaweed, consisting of a linear chain of (1–4) β-D-mannuronic acid (M) and residues of α-L-guluronic acid (G) arranged in irregular blocks, having applications in interdisciplinary fields such as medicine [ 8 ], drug delivery [ 9 ], food [ 10 ], or heavy metal ion removal [ 11 ]. Bacterial alginate was investigated for copper removal [ 12 ].…”
Section: Introductionmentioning
confidence: 99%
“…Among these molecules, alginic acid is a very versatile green polymer used for heavy metal adsorption due to its availability, biocompatibility, low cost, and non-toxic characteristics. Alginates are anionic polysaccharides obtained from seaweed, consisting of a linear chain of (1–4) β-D-mannuronic acid (M) and residues of α-L-guluronic acid (G) arranged in irregular blocks, having applications in interdisciplinary fields such as medicine [ 8 ], drug delivery [ 9 ], food [ 10 ], or heavy metal ion removal [ 11 ]. Bacterial alginate was investigated for copper removal [ 12 ].…”
Section: Introductionmentioning
confidence: 99%
“…After 55 °C, there were no significant changes in the efficiency of the Cu( ii ) ion adsorption process. 59 The optimum temperature of 55 °C was therefore taken into consideration. Table 5 and Fig.…”
Section: Resultsmentioning
confidence: 99%
“…To evaluate the effect of the interaction between the biomass and metal ions, we characterized OFI after contact with single-and multi-elemental ion solutions via FT-IR (Figure 2) Figure 2 shows that after the contact between the biomass and the metal solution, the bands were narrower and/or shifted, suggesting that there were interactions of different functional groups with the metal ions. This indicates a rearrangement of the biomass structure due to the complexation between the metal and the functional groups belonging to different polysaccharide chain areas, causing a hardening of the structure, and therefore more defined infrared bands [45]. This is manifested in several features (3430 and 3335 cm −1 ), overlapping to the broadband between 3700 and 2500 cm −1 , attributable to the interaction of metals with OH and NH groups.…”
Section: Biomass Characterizationmentioning
confidence: 97%