| 朱东波,刘慧慧,邵翔.化学通报,2017,80(11):1036-1042. |
| 溶液法剥离的氮化碳在各种衬底上分散的AFM研究 |
| AFM characterizations of the liquid-phase exfoliated carbon nitrideon various substrates |
| 投稿时间：2017-05-14 修订日期：2017-06-01 |
| DOI： |
| 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, 2D nanomaterials, liquid-phase exfoliation, 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） |
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| 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. |
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