Synthesis and characterization of tannin-immobilized hydrotalcite as a potential adsorbent of heavy metal ions in effluent treatments

Humic acid-immobilized polymer/bentonite composite as an adsorbent for the removal of copper(II) ions from aqueous solutions and electroplating industry wastewater

“…The monolayer adsorption capacity (Q 0 ) of HA-Am-PAA-B, found out in this study (108.06 mg/g) was much higher than the reported values [31][32][33][34] and is listed in Table 3. The results are of greater environmental concern as HA-Am-PAA-B can be effectively applied to remove Cu(II) ions from industrial wastewater.…”

Cu(II), Pb(II) and Cd(II) sorption on different layered double hydroxides. A kinetic and thermodynamic study and competing factors

“…These results could be comparable and are quite competitive (under similar experimental conditions) with those obtained by other authors; i.e. the maximum amounts of studied metal sorbed on LDHs could be grouped into the following ranges: 0.01-0.5mmolg -1 for Cd, 0.03-1.78 mmolg -1 for Cu and 0.03-0.5 mmolg -1 for Pb [5,6,12,[15][16][17][18][19][20].…”

Adsorptive recovery of UO22+ from aqueous solutions using collagen–tannin resin

“…It has been reported that plant tannins exhibit specific affinity towards many metal ions [10], due to their abundant of multiple adjacent hydroxyl groups (as shown in Fig. 1).…”