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Table 2 Intra particle diffussion model for ME and Cu(II) cations on ASN and ASN-MPs at 27 °C and pH 7

From: Application of modified green algae Nannochloropsis sp. as adsorbent in the simultaneous adsorption of Methylene Blue and Cu(II) cations in solution

Adsorbents

Initial linear part

Second linear part

ki1 (mmol g−1 min−0.5)

C1 (mmol g− 1)

R12

ki2 (mmol g− 1 min− 0.5)

C2 (mmol g− 1)

R22

ASN-ME

0.88

2.30

0.980

0.15

6.08

0.418

ASN-Cu(II)

0.47

8.85

0.901

0.38

9.89

0.975

ASN-MPs-ME

0.70

4.63

0.960

0.49

6.32

0.815

ASN-MPs-Cu(II)

0.92

8.02

0.963

0.80

9.18

0.781