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化学还原法被认为是实现大规模生产石墨烯的主要途径之一,而剥离氧化石墨为氧化石墨烯是利用该方法获得高品质石墨烯的关键步骤.本文分别利用超声波清洗和超声波粉碎两种方式实现了氧化石墨的剥离,研究了超声波的频率和作用方式对其剥离效率和破坏程度的影响.结果表明,氧化石墨的剥离效率随超声波频率的增大而提高;横向尺寸破坏程度在超声波直接作用时较大,间接作用时较小,可获得横向尺寸相对较大的氧化石墨烯片层.

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