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Table 9 Comparison of this study with other studies

From: Optimization of Cr (VI) removal from aqueous solution with activated carbon derived from Eichhornia crassipes under response surface methodology

Precursor material

Removal efficiency (%)

References

Teff straw-based AC

95.90

[87]

Cassava sludge-based AC

98.22

[88]

Peyanum harmala seed-based AC

99.60

[89]

Powder AC modified by zero-valent iron and silver bimetallic nanoparticle

97.25

[90]

Corncob based AC

98.38

[91]

Eichhornia crassipes

98.40

This study