Table 3 Kinetic parameters of the obtained LbL-assembled composites for RhB and MB removal at 298 K (experimental data from Fig. 9).

From: Fabrication of Hierarchical Layer-by-Layer Assembled Diamond-based Core-Shell Nanocomposites as Highly Efficient Dye Absorbents for Wastewater Treatment

RhB

Pseudo-first-order model

Pseudo-second-order model

qe (mg/g)

R2

K1 (min−1)

qe (mg/g)

R2

K2 (g/mg · min)

D@GO-COOH@(PEI/PAA)2

5.4833

0.9771

3.02 × 10−2

6.1120

0.9968

7.38 × 10−3

D@GO-COOH@(PEI/PAA)8

20.8350

0.9577

4.98 × 10−2

23.3263

0.9980

2.96 × 10−3

MB

D@GO-COOH@(PEI/PAA)2

38.4633

0.9844

9.54 × 10−2

40.0320

0.9952

3.99 × 10−3

D@GO-COOH@(PEI/PAA)8

41.3414

0.9981

2.41 × 10−1

43.8596

0.9997

1.20 × 10−2

Back to article page