Cross-linked graphene membrane for high-performance organics separation of emulsions
Cross-linked graphene membrane for high-performance organics separation of emulsions
复制标题
用于乳液高性能有机物分离的交联石墨烯膜
DOI：
10.1016/j.memsci.2015.08.042
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发表时间：
2015-12-01
影响因子：
9.5
通讯作者：
Yuan, Qipeng
中科院分区：
文献类型：
--
作者：
Li, Guofeng;Wang, Xing;Yuan, Qipeng
Recently, graphene oxide (GO) membranes are highly attractive for their exceptional separation performance. However, their sieving characteristics limit GO membranes for some important applications where organics are preferred or organic solvents are employed. In this work, a novel cross-linked graphene (CG) membrane is fabricated through compressing and then reducing a cross-linked GO aerogel. It achieved high-performance of organics separation with high flux (225 L m(-2) h(-1)) and purity ( >99.98%) even in a cross-flow separation model, where water was intercepted. Deep insight revealed that both the converted surface wettability and the remaining channels in the CG membrane were crucial for the high-performance of organics separation. Beyond that, this CG membrane offers many advantages, such as facile preparation, self-supporting, structural stability and adaptation in harsh acidic/basic/high-temperature conditions, demonstrating its great potential for practical applications. (C) 2015 Elsevier B.V. All rights reserved.
