Table 4 Effect of initial concentration on (R%) and qe (mg. g-1) of MB dye after 100 min.

From: Synthesis of activated carbon composited with Egyptian black sand for enhanced adsorption performance toward methylene blue dye

Adsorbents

1 ppm

2 ppm

3 ppm

4 ppm

5 ppm

R%

qe

(mg g−1)

R%

qe

(mg g−1)

R%

qe

(mg g−1)

R%

qe

(mg g−1)

R%

qe

(mg g−1)

GA

60.0

1.20

50.0

2.0

40.0

2.40

35.0

2.80

32.0

3.20

OS400

80.0

1.60

75.0

3.0

70.0

4.20

67.5

5.40

66.0

6.60

OSMG

90.0

1.80

95.0

3.8

96.6

5.80

95.0

3.80

96.0

9.60

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