中文关键词:石墨相氮化碳二维纳米材料 液相剥离原子力显微镜 英文关键词:g-C₃N₄, 2Dnanomaterials, liquid-phaseexfoliation, AFM 基金项目:国家自然科学基金项目（91545128, 21333001）,国家重点基础研究发展计划（973计划）

作者	单位	E-mail
朱东波	中国科学技术大学化学物理系	zdb1992@mail.ustc.edu.cn
刘慧慧	中国科学技术大学化学物理系
邵翔	中国科学技术大学化学物理系	shaox@ustc.edu.cn

摘要点击次数:2057 全文下载次数:0 中文摘要: 石墨相氮化碳(g-C₃N₄)因为其特殊的层状结构及电子性质在催化和光催化领域里受到广泛关注和研究。本文以异丙醇及异丙醇-水混合溶液两种不同溶液为介质对g-C₃N₄粉末进行超声液相剥离。并利用原子力显微镜(AFM)详细表征了剥离后的溶液分散至云母、HOPG、Au(111)等不同衬底表面的结果。发现溶液经十小时超声后g-C₃N₄被剥离成尺寸约100 nm左右的扁平颗粒,但无法形成完美的超薄层结构。这很可能是由于经热聚合法合成的g-C₃N₄本身晶化程度较低所致。 英文摘要: Graphitic carbon nitride (g-C₃N₄) has provoked wide research interests in heterogeneous catalysis and photocatalysis, owing to its special layered structure and the related electronic properties. In this work, we have treated the g-C₃N₄ powder by ultrasonic bath in both isopropanol (IPA) and IPA-H₂O solvents and then dispersed on various substrates including mica, HOPG and Au(111). With detailed atomic force microscopy (AFM) characterizations, we found after 10 hours of ultrasonic bathing, the g-C₃N₄ grains were exfoliated into planate particles as small as 100 nm and thin as 10 nm. However the expected g-C₃N₄ nanosheets were not formed. This is most likely due to the low crystallinity of the g-C₃N₄ powder produced by the thermal polymerization. 查看全文查看/发表评论下载PDF阅读器 相关附件：版权转让声明书 -->