离子液体中黑磷的大规模、高效且绿色的液相剥离
Large-Scale, Highly Efficient, and Green Liquid-Exfoliation of Black Phosphorus in Ionic Liquids.
作者信息
Zhao Wancheng, Xue Zhimin, Wang Jinfang, Jiang Jingyun, Zhao Xinhui, Mu Tiancheng
机构信息
Department of Chemistry, Renmin University of China , Beijing 100872, China.
Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University , Beijing 100083, China.
出版信息
ACS Appl Mater Interfaces. 2015 Dec 23;7(50):27608-12. doi: 10.1021/acsami.5b10734. Epub 2015 Dec 9.
We developed a facile, large-scale, and environmentally friendly liquid-exfoliation method to produce stable and high-concentration dispersions of mono- to few-layer black phosphorus (BP) nanosheets from bulk BP using nine ionic liquids. The prepared suspensions can stabilize without any obvious sedimentation and aggregation in ambient air for one month. In particular, the concentration (up to 0.95 mg mL(-1)) of BP nanoflakes obtained in 1-hydroxyethyl-3-methylimidazolium trifluoromethansulfonate ([HOEMIM][TfO]) is the highest reported for BP nanosheets dispersions. This work provides new opportunities for preparing atomically thin BP nanosheets in green, large-scale, and highly concentrated processes and achieving its in situ application.
我们开发了一种简便、大规模且环境友好的液相剥离方法，使用九种离子液体从块状黑磷（BP）制备单层至少数层黑磷纳米片的稳定高浓度分散体。所制备的悬浮液在环境空气中无需任何明显沉降和聚集即可稳定存在一个月。特别地，在1-羟乙基-3-甲基咪唑三氟甲磺酸盐（[HOEMIM][TfO]）中获得的BP纳米片浓度（高达0.95 mg mL(-1)）是已报道的BP纳米片分散体中最高的。这项工作为在绿色、大规模且高浓度的过程中制备原子级薄的BP纳米片并实现其原位应用提供了新机遇。
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