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Table 1 Comparison of absorbance of synthetic effluent samples before and after treatment with adsorbents

From: Nanosilver-decorated nanographene and their adsorption performance in waste water treatment

Absorbents used in the study Absorbance at 540 nm obtained before and after treatment with effluents
Textile and dyeing Tannery Paper mill
Before After Before After Before After
Graphene (G) 0.81 0.13 0.91 0.32 0.78 0.66
Graphene + AgNPs (GA)   0.06   0.28   0.54
Graphene + AgNPs + M. oleifera (GAM)   0.02   0.27   0.51
Activated charcoal (AC)   0.05   0.40   0.52
Graphene + M. oleifera (GM)   0.15   0.26   0.60