Nano-GO, also labeled as graphene quantum dots (GQDs) can be synthetized by two different approaches: top-down or bottom-up. Usually top-down methods consist on “cutting” graphene in very small pieces, under 100 nm on lateral dimensions, which could be performed by chemical ablation, electrochemical oxidation or oxygen plasma treatment. Bottom-up methods involves the synthesis of nano-GO through molecular precursors.
See refference: https://www.nature.com/articles/srep06735
In recommendation to Florian Glodeanu Sir, Grapheme oxide of micro range can be synthesized to nanoGO using top-down approach, by probe -ultrasonication, further followed with proper centrifugation.
Best way is to reduce graphene oxide by hydrazine in NaOH solution (Heating at 80 oC for 24 hours) followed by partial oxidation with concentrated H2SO4. (heat the solution at 80 oC for 5 h)
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science
- Materials
- Carbon Materials
- Graphite
- Graphene