i use 3 gr graphite H2SO4 120ml H3PO4 13,3 (9:1) and i varying KMnO4 10gr 15gr and 20gr with time process 8 hour (4 hour stirrer graphite H2so4 and H3PO4 temp 97 degg ) and 1 hour adding slowly KMnO4 in ice bed and 1 minute stirring at a temperature of 47. why on the results of the xrd peak formed at 12.62 23.7da 42.9 (in the picture). on peaks 23 and 42 what does it show?
Omkar S. Kushwaha i want to get Graphene oxide and just do the hummers method without oxygen reducing solution. can it be from graphite directly to rgo? because in the experiment I used the most variation in adding oxidants, namely KMnO4 20gr (between 10 gr and 15 gr) and the synthesis time was longer
Yes....Your sample is RGO. It shows clearly in XRD pattern...Your sample has been oxidized and again reduced it to RGO due to longer time. Reducing agents can be formed as the by products of your aggressive chemical mix with high Temperature also.
Read these papers...
Comparison on graphite, graphene oxide and reduced graphene oxide: Synthesis and characterization
AIP Conference Proceedings 1892, 150002 (2017); https://doi.org/10.1063/1.5005764N. M. S. Hidayah1,a), Wei-Wen Liu2,b), Chin-Wei Lai3,c), N. Z. Noriman4,d), Cheng-Seong Khe5,e), U. Hashim6,f), and H. Cheun Lee7,g)
Function composition of modified reduced graphite oxide
A.A.KobetsaE.V.LobiakbG.K.KrivyakinaT.KalliocE.O.Fedorovskayaabc
doi.org/10.1016/j.mtchem.2020.100311
I agree with Nadeesha Maduwanthi Hettiarachchi . Let me know if you have any issues after following the suggested references.
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