Table 2 Comparison of the maximum adsorption capacity of Cd(II), Cu(II) and Pb(II) ions on various adsorbents.
Adsorbents | Metal ions | Qmax(mg/g) | pH | Refs |
|---|---|---|---|---|
6O-MWCNTs@Fe3O4 | Pb(II) | 215.05 | 6.0 | This work |
MWCNTs/ThO2 | Pb(II) | 178.25 | 5.5 | |
50%CNTs/Fe3O4 | Pb(II) | 40.88 | 6.2 | |
CNTs | Pb(II) | 102.04 | 5.0 | |
CS-MA-DETA | Pb(II) | 239.2 | 5.0 | |
magnetic chitosan with xanthate (XMCS) | Pb(II) | 76.9 | 5.0 | |
6O-MWCNTs@Fe3O4 | Cu(II) | 87.41 | 6.0 | This work |
CNTs/CA | Cu(II) | 67.9 | 2.1 | |
Fe3O4 nanoparticles | Cu(II) | 35.46 | 4.0 | |
magnetic chitosan with xanthate (XMCS) | Cu(II) | 34.5 | 5.0 | |
γ-PGA-Fe3O4-GO-(o-MWCNTs) | Cu(II) | 574.7 | 8.0 | |
6O-MWCNTs@Fe3O4 | Cd(II) | 57.18 | 6.0 | This work |
Fe3O4 nanoparticles | Cd(II) | 35.46 | 4.0 | |
γ-PGA-Fe3O4-GO-(o-MWCNTs) | Cd(II) | 625.0 | 5.0 | |
CS-MA-DETA | Cd(II) | 201.6 | 5.0 | |
Microwave assisted MWCNTs | Cd(II) | 88.62 | 5.0 |
