I have synthesized graphene quantum dots, whose precursor is citric acid, and I dissolved it in a mixture of dimethylformamide and ethanol solvents and obtained it during the solvothermal reaction, so I could not dry the resulting solution, what can I do cause I could not dry it at 40 C?
Try drying at a lower temperature, such as room temperature or slightly above, to avoid degradation while still allowing for solvent evaporation
Are those graphene quantum dots really dissolved? If not, how about filtration and washing with ethanol?
Review the boiling and avaporation temperatures of solvents is important. More information can be required to solve this doubt.
@Paul Körner yes first I dissolved citric acid in the solution of dmf and EtOH then I put it in an ultrasound to mix well
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