Fig. 5From: Removal of arsenate using graphene oxide-iron modified clinoptilolite-based composites: adsorption kinetic and column studyEffects of initial arsenate concentration of a 50 μg/L, b 250 μg/L, and c 450 μg/L on the residual arsenate concentration for FeZ, GO, GOFeZA, and GOFeZBBack to article page