Abstract
Green reduction of graphene oxide (GO) was performed using ascorbic acid (AA) in the presence of poly(sodium 4-styrenesulfonate), which resulted in reduced graphene oxide (PSS–rGO) with excellent solubility and stability in water. Large rGO sheets of 4 μm2 area and 1.1-nm thickness were obtained. The measurements showed that noncovalent functionalization with PSS molecules prevented rGO from aggregation. The parameters of graphite oxidation process and AA:GO w/w ratio were evaluated, and the obtained results showed that the properties of the reduced material (PSS–rGO) can be tailored by proper selection and adjustment of these parameters.
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