From: Nanosilver-decorated nanographene and their adsorption performance in waste water treatment
Absorbents used in the study | Absorbance at 540Â 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) | Â | 0.05 | Â | 0.40 | Â | 0.52 |
Graphene +Â M. oleifera (GM) | Â | 0.15 | Â | 0.26 | Â | 0.60 |