Table 4 Comparison of adsorption capacity, pH, and equilibrium time of the present method with other methods for removal of CR by reported adsorbents.
From: Itaconic acid-modified layered double hydroxide/gellan gum nanocomposites for Congo red adsorption
Adsorbentsa | qm (mg g–1) | pH | Equilibrium time (min) | Refernces |
|---|---|---|---|---|
Cu-Ca-Al-LDH/gellan gum nanocomposite | 74–100 | 5.0 | 60 | This work |
AuNPs-coated AC | 71.05 | 6.5 | 270 | |
AgNPs-coated AC | 64.80 | 6.5 | 270 | |
pTSA-Pani@GO-CNT | 66.66 | 5.0 | 300 | |
Neem leaf powder | 41.24 | 6.7 | 300 | |
Hollow ZnFe2O4 microspheres | 16.58 | 6.0 | 120 | |
Aspergillus niger biomass | 14.16 | 6.0 | 1800 | |
Modified Zeolite A | 21.11 | 7.0 | 90 | |
Montmorillonite | 714.28 | 2.0 | 40 | |
Kaolin | 5.44 | – | 24 h |
