采用低能N-离子束对氧化石墨烯进行辐照,研究离子束辐照对石墨烯表面的改性作用,通过拉曼光谱仪(Raman)、原子力显微镜(AFM)和透射电子显微镜(TEM)表征了氧化石墨烯的辐照效果.结果表明,由于辐照产生的原子碰撞和热效应,在一定的N+辐照剂量下,氧化石墨烯表面发生原子的迁移、重排,在表面产生了纳米孔和晶化现象.Raman结果显示,相对于未辐照组,辐照后的氧化石墨烯特征峰相对强度比值ID/IG明显降低,表明离子束辐照减少了氧化石墨烯表面缺陷,具有明显的改性效果.
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