Graphite is a carbon allotrope that has special bonding characteristics. The existence of these bonds can change with the presence of ultrasonic waves that are given, so that it becomes another form of bond or the bond becomes loose. Changes in the bond will cause changes in the characteristic of the bond to be another form of carbon allotropes. By making variations of the ultrasonication process (time and temperature), changes in the bond or functional group will be analyzed which occur with changes in the structure of carbon. The ultrasonication process results in the oxygen atom entering the bond so that the C atomic bond appears with O, both single bonds and double bonds. The new bond formed is linearly proportional to the change in ultrasonication time and temperature. The bond C with O causes carbon to turn into carbon graphite oxide allotropes, this is supported by the results of Raman spectroscopic characterization, where the defect of carbon increases compared to carbon without ultrasonication. The defect intensity increased from 60 a.u to 595 a.u.

Keywords: Graphite, Ultrasonication, Allotrope