Three-dimensional nitrogen and boron codoped graphene for carbon dioxide and oils adsorption
Three-dimensional nitrogen and boron codoped graphene for carbon dioxide and oils adsorption
复制标题
三维氮硼共掺杂石墨烯用于二氧化碳和油类吸附
DOI：
10.1039/c6ra22297h
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发表时间：
2017-01-01
期刊：
影响因子：
3.9
通讯作者：
Hong, Li
中科院分区：
文献类型：
--
作者：
Liu, Ying;Xiang, Minghui;Hong, Li
三维杂原子掺杂石墨烯大孔结构具有孔容大、表面活性位点多、比表面积高等优异特性。这些特性对于高性能吸附剂的制备很有用。我们介绍了一种简便的合成路线，通过溶剂热法在 180°C 下 6 小时制备三维氮硼共掺杂石墨烯气凝胶（BN-GAs）。 BN-GA 具有 2.5-11 nm 孔的介观结构、高表面积（169.9 m2 g−1），并含有氮和硼。基于大比表面积和高氮和硼含量的独特特征，BN-GA表现出2.1-2.9 mmol g−1 (273 K, 1.0 bar)的高CO2捕获能力以及对不同油和溶剂高达23 g g−1的优异吸收能力。这些结果表明 BN-GA 可以作为二氧化碳和石油泄漏捕获的潜在吸附剂。
Three-dimensional heteroatom-doped graphene macroporous structures possess superior features, such as the large pore volume, numerous surface active sites and the high specific surface area. These properties are useful for the preparation of high-performance adsorbents. We introduce a facile synthesis route for the preparation of three-dimensional nitrogen and boron codoped graphene aerogels (BN-GAs) via a solvothermal method at 180 °C for 6 h. The BN-GAs possess mesostructures with 2.5–11 nm pores, a high surface area (169.9 m2 g−1), and contain nitrogen and boron. Based on the unique feature of the large specific surface area and the high nitrogen and boron contents, the BN-GAs show a high CO2 capture of 2.1–2.9 mmol g−1 (273 K, 1.0 bar) and excellent absorption capacities of up to 23 g g−1 for different oils and solvents. These results suggest that the BN-GAs may serve as a potential adsorbent for CO2 and oil leakage capture.