By removing the liquid component {HEAD ~ one} obtains the partially reduced GO, which can be further heat treated to produce {TAIL ~ fully reduced RGO} 
By removing the liquid component { HEAD ~ one } obtains the partially reduced GO , which can be further heat treated to produce { TAIL ~ fully reduced RGO }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL