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Synthesis and application of graphene aerogel as an adsorbent for water treatment

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In this research, graphene aerogel (GA) was fabricated by chemical reduction method, in which ethylenediamine (EDA) was used as a reducing and functionalising agent. The characterisation of GA was studied by density, field-emission scanning electron microscope, Brunauer-Emmett-Teller (BET) specific surface area, Fourier transform infrared spectroscopy, and X-ray diffraction. The results of the analysis showed that GA exhibits low density, ranging from 4-8 mg/cm3 , high porosity, and BET specific surface area changes from 176 to 1845 m2 /g. It was found that the suitable content of EDA on the synthesis of GA is 30 µl. The obtained GA was used as an adsorbent for removal of oils and methylene blue (MB) from aqueous solutions. The maximum adsorption capacities of GA for lubricant and crude oils are 160 g/g and 110 g/g respectively. | Synthesis and application of graphene aerogel as an adsorbent for water treatment

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