สถานที่ตีพิมพ์ : Asian Journal of Chemistry 26 (2014) 1321-1323.
รายละเอียด : The present study was aimed to clarify detailed conditions of vigorous solid-state reaction as conventional method for graphene oxide (GO). For optimization study, the effects of an initial concentration of KMnO4 (0.75-7.5% w/v), reaction temperature (0-120 oC), and an incubation time (1-48 h) were investigated. The obtained GO was characterized by Fourier Transform infrared spectroscopy (FTIR), X-ray diffraction spectroscopy (XRD), energy dispersive X-ray spectroscopy (EDX) and scanning electron microscope (SEM) techniques. From the results, the optimum conditions for GO production were consisted of 4.5% w/v KMnO4 at 80?C for 6 h. IR spectrum showed the characteristic peaks at wave number (cm-1) of 3367 (O-H), 1719 (C=O), 1224 and 1049 (C-O). EDX of the GO revealed the improved C/O ratio
