The controllable oxidation degree of graphene oxide (GO) by improving Hummers method are currently being addressed. In this work, Improved Hummers method with appropriate optimization was used to yield GO. The oxidation degrees of GO were controlled via changing different phosphate intercalators (KH₂PO₄, NaH₂PO₄, LiH₂PO₄ and H₃PO₄) in pre-oxidation stage. After oxidized exfoliation and purification, GO samples were analyzed by FTIR, UV–Vis, TGA, Raman spectra, XPS, XRD, SEM and TEM. The results indicated the efficiency of intercalation and oxidation decreased sequentially in intercalator KH₂PO₄, H₃PO₄, NaH₂PO4 and LiH₂PO₄. Take GO from KH₂PO₄ for example, it showed the high-quality oxidation due to 53.18% oxidized carbon and interlayer spacing at 9.87 Å. These data provided the possibility to control properties through oxidation degree and broaden applications of graphene oxide applications.

目前正在研究通过改进的悍马方法来控制氧化石墨烯（GO）的可控氧化度。在这项工作中，采用经过适当优化的改进悍马方法产生了GO。通过在预氧化阶段改变不同的磷酸盐嵌入剂（KH ₂ PO ₄，NaH ₂ PO ₄，LiH ₂ PO ₄和H ₃ PO ₄）来控制GO的氧化程度。经过氧化剥离和纯化后，GO样品通过FTIR，UV-Vis，TGA，拉曼光谱，XPS，XRD，SEM和TEM进行分析。结果表明，插层剂KH ₂ PO中插层和氧化效率依次降低₄，H ₃ PO ₄，NaH ₂ PO4和LiH ₂ PO ₄。以KH ₂ PO _4中的GO为例，它显示出高质量的氧化，这归因于53.18％的氧化碳和9.87Å的层间距。这些数据提供了通过氧化程度控制性能和拓宽氧化石墨烯应用的可能性。