Table 3 PFOM and PSOM results of AB86 dye absorption [C0 (25–200 mg/L) by CAH doses (1.5–9.0 g/L), and Temp. (25 ± 2 °C)].

From: Thermodynamic, kinetic, and isotherm studies of Direct Blue 86 dye absorption by cellulose hydrogel

Parameter

PFOM

PSOM

CAH

(g/L)

DB86 dye (mg/L)

qe (exp.)

qe (calc.)

k1 × 103

R2

qe (calc.)

k2 × 103

h

R2

1.5

25

5.44

1.96

15.20

0.916

5.52

28.64

0.87

0.996

50

3.56

1.89

16.35

0.855

10.71

41.52

4.76

1.000

75

2.82

4.59

21.65

0.953

14.37

15.56

3.21

0.999

100

2.27

5.34

21.65

0.988

17.24

13.09

3.89

0.999

150

1.95

8.63

28.33

0.744

24.15

12.60

7.35

0.999

200

1.69

10.38

14.28

0.841

27.55

5.79

4.39

0.994

3.0

25

10.72

1.36

19.81

0.934

3.60

48.81

0.63

0.997

50

6.21

2.95

26.95

0.858

6.26

30.68

1.20

0.998

75

5.18

4.51

30.63

0.824

9.42

22.40

1.99

0.999

100

4.32

4.67

18.42

0.883

11.99

13.59

1.95

0.996

150

3.75

5.62

21.42

0.920

16.50

10.78

2.94

0.996

200

3.16

6.62

31.32

0.927

21.88

15.76

7.55

1.000

4.5

25

14.21

1.23

24.87

0.974

2.88

58.60

0.49

0.998

50

9.31

2.60

32.93

0.776

5.23

44.02

1.20

0.999

75

7.01

2.31

21.19

0.960

7.10

30.90

1.56

0.999

100

5.44

3.60

23.26

0.895

9.79

21.03

2.02

0.998

150

5.46

5.95

30.63

0.866

13.61

16.79

3.11

0.999

200

4.79

4.76

16.12

0.972

16.16

13.83

3.61

0.999

6.0

25

17.03

1.22

30.86

0.838

2.33

67.30

0.36

0.999

50

11.92

1.34

24.18

0.990

4.38

61.37

1.18

1.000

75

9.69

1.77

28.79

0.930

5.49

58.29

1.76

1.000

100

8.28

2.80

17.27

0.984

8.34

22.93

1.59

0.998

150

7.17

3.60

19.58

0.993

11.07

19.05

2.34

0.999

200

6.36

6.25

28.56

0.802

13.19

15.26

2.66

0.998

7.5

25

24.21

1.04

29.94

0.906

1.99

87.56

0.35

0.999

50

16.23

1.06

22.57

0.973

3.81

72.44

1.05

0.999

75

13.44

1.72

18.19

0.973

5.50

40.04

1.21

0.999

100

10.95

3.65

32.24

0.760

7.22

29.89

1.56

0.999

150

9.61

3.04

18.19

0.983

9.69

22.42

2.10

0.999

200

8.56

4.05

17.73

0.960

13.05

16.66

2.84

0.998

9.0

25

27.79

0.56

26.02

0.968

1.72

149.22

0.44

1.000

50

21.64

0.96

21.42

0.909

3.19

124.11

1.26

1.000

75

16.10

1.47

16.81

0.941

4.80

45.92

1.06

0.998

100

13.12

2.95

3.16

0.803

6.42

35.49

1.46

0.999

150

12.99

3.89

28.10

0.849

8.64

24.21

1.81

0.999

200

11.37

8.61

34.78

0.742

11.36

22.68

2.93

0.998

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