Ultra-lightweight and highly porous carbon aerogels from bamboo pulp fibers as an effective sorbent for water treatment
Ultra-lightweight and highly porous carbon aerogels from bamboo pulp fibers as an effective sorbent for water treatment
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由竹浆纤维制成的超轻质高孔隙碳气凝胶作为水处理的有效吸附剂
DOI：
10.1016/j.rinp.2017.08.011
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发表时间：
2017
影响因子：
5.3
通讯作者：
Lu Canhui
中科院分区：
文献类型：
--
作者：
Yuan Wei;Zhang Xiaofang;Zhao Jiangqi;Li Qingye;Ao Chenghong;Xia Tian;Zhang Wei;Lu Canhui
来源于生物质的吸附剂为解决有机溶剂和/或油泄漏问题提供了新的途径。本文以廉价、丰富的竹浆纤维为原料，采用热裂解法制备了一种新型的碳气凝胶吸附剂。CA显示出超低密度（5.65 mg cm−3）、高疏水性（水接触角为135.9°）和大比表面积（379.39 m2 g −1）以及优异的机械性能。CA对有机溶剂/油的吸附容量非常大（50-150 g/g）。特别是，其对有机溶剂的吸收优于许多其他生物基CA的上级。CA的可重用性也令人印象深刻。经过5次以上的吸附-脱附循环，CA对有机溶剂和油类仍表现出良好的吸附性能。重要的是，CA的制造过程非常简单且环境友好，在未来的水处理应用中表现出很大的潜力。
Sorbents derived from biomass provide a novel approach to settle issues of organic solvent and/or oil leakage. In this work, a novel carbon aerogel (CA) was prepared as sorbents using the cheap and abundant bamboo pulp fibers as precursors through the pyrolysis method. The CA displayed an ultra-low density (5.65 mg cm−3), high hydrophobicity (water contact angle of 135.9°) and a large specific surface area (379.39 m2g−1) as well as great mechanical properties. The absorption capacities of CA for organic solvents/oils were extraordinary (50–150 g/g). Particularly, its absorption on organic solvents was superior to many other bio-based CAs. The reusability of CA was also found impressive. For over five absorption–desorption cycles, the CA still showed excellent absorption behaviors on organic solvents and oils. Importantly, the fabrication process of CA is quite simple and environmentally friendly, demonstrating high potentials for future water treatment applications.
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