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Abstract

Graphene oxide and highly reduced graphene oxide was synthesized by chemical method and characterized by FTIR, SEM and XRD. Synthesized graphene oxide (GO) and reduced graphene oxide (RGOU) was used as adsorbent to remove lead ions from aqueous solution. Batch experiments were conducted to study the effect of pH, adsorbent dosage, contact time and initial concentration of lead ion. Maximum adsorption was done in first 45 min between pH 5 and 6. It is believed that the adsorption occurs due to binding of metal with functional groups (–C-O-C, -COOH, C=O and –OH) present at the surface of graphene oxide. This adsorption method may also be used for the removal of heavy metal ions from industrial wastewater.

Keywords

Graphene oxide Reduced graphene oxide Adsorption Lead ions

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