After centrifugation, should I use the supernatant or the residue? I am asking because after centrifugation in the preparation of GO, the solution with water was a brown colored supernatant with a black colored residue. But does GO means brown colour only? What should I do? I took the black colour residue only & washed out the supernatant. Is this correct or not? Can you suggest how to proceed from here?
Article Preparation of graphene by the rapid and mild thermal reduct...
Gaurav Lalwani
Look at http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0038185
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Sridhar Chinthakindi
at the end of the synthesis process reaction mix looks yellow colour. you are getting black colour means oxidation process was not happens. It needs 9000 rpm to get clear supernatant
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