Fig. 1From: Preparation and characterisation of activated carbon from Vitisvinifera leaf litter and its adsorption performance for aqueous phenanthreneBET isotherm plots for nitrogen adsorption capacity of the activated carbons PAac: activated with H3PO4 at 5:2 biomass to H3PO4 ratio. PBac: activated with H3PO4 at 5:1 biomass to H3PO4 ratio. PCac: activated with H3PO4 at 10:1 biomass to H3PO4 ratio. ZAac: activated with ZnCl2 at 5:2 biomass to ZnCl2 ratio. ZBac: activated with ZnCl2 at 5:1 biomass to ZnCl2 ratio. ZCac: activated with ZnCl2 at 10:1 biomass to ZnCl2 ratioBack to article page