Table 6 Comparison of the Cr (VI) adsorption efficacy of rGO@Fe3O4 nanocomposite with other carbon/iron based and biological adsorbents.

From: Study of linear and nonlinear isotherm and kinetic parameters of hexavalent chromium adsorption onto reduced graphene oxide coated iron oxide

Adsorbent

KF

(mg/g) · (mg/L) (− 1/n)

qm, mg/g

Contact time

Initial concentration range, mg/L

References

PEI-MWCNTsa

2.680

40.3

60 min

10–125

48

MWCNTsb

0.623

2.35

60 min

–

49

SWCNTsc

0.279

1.26

60 min

–

α-FeOOH NPsd

4.016

10.44

75 min

5–30

50

Rice Straw

1.397

3.15

48 h

40–200

51

rGO@Fe3O4

0.820

5.15

40 min

10–100

This study

  1. aPolyethyleneimine-multi-walled carbon nanotube.
  2. bMulti-walled carbon nanotubes.
  3. cSingle-walled carbon nanotubes.
  4. dFerric oxyhydroxide.
Back to article page