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题名:
Graphene-carbon nanotube aerogel as an ultra-light, compressible and recyclable highly efficient absorbent for oil and dyes
作者: Wan, WC; Zhang, RY; Li, W; Liu, H; Lin, YH; Li, LN; Zhou, Y
刊名: ENVIRONMENTAL SCIENCE-NANO
出版日期: 2016
卷号: 3, 期号:1, 页码:107—113
关键词: WATER-PURIFICATION ; SORBENT MATERIALS ; ORGANIC-SOLVENTS ; HYBRID AEROGELS ; SPONGY GRAPHENE ; SPILL CLEANUP ; PERFORMANCE ; ADSORPTION ; REMOVAL ; FIBERS
DOI: 10.1039/c5en00125k
通讯作者: Zhou, Y (reprint author), Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China. ; Zhou, Y (reprint author), Southwest Petr Univ, Sch Mat Sci & Engn, Ctr New Energy Mat & Technol, Chengdu 610500, Peoples R China.
文章类型: 期刊文献
英文摘要: Carbon nanotubes (CNTs) have good toughness and hydrophobicity. The embedding of CNTs into a graphene aerogel (GA) network could modify various properties of the GA. In this work, we report a facile and green approach to synthesize graphene-CNT aerogels (GCAs) by a one-step hydrothermal redox reaction. The prepared aerogels possess ultra-light densities ranging from 6.2-12.8 mg cm(-3). The incorporation of CNTs into the GA could not only improve the morphologies, specific surface areas and hydrophobic properties but also enhance the adsorption capacity and mechanical properties of the GA. Under optimized GO/CNT mass ratio (7 : 1 and 3 : 1) conditions, adsorption capacities 100-270 times of their own weight could be achieved depending on the density of the adsorbed organics. The same trend also appeared in the adsorption of dyes including methylene blue (MB) and methyl orange (MO). Especially, the obtained GCAs exhibited excellent reusability and mechanical strength on the basis of absorption-combustion and adsorption-squeezing experiments. Even after 10 cycles, the macroscopic shape of the aerogels is well kept and almost no decrease in adsorption capacity was observed. Based on the facile preparation process, high adsorption capacity and stable cyclic performance, the GCAs could have promising widespread applications in practical water purification and oil remediation.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000374699800010
ISSN号: 2051-8153
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25735
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Wan, WC,Zhang, RY,Li, W,et al. Graphene-carbon nanotube aerogel as an ultra-light, compressible and recyclable highly efficient absorbent for oil and dyes[J]. ENVIRONMENTAL SCIENCE-NANO,2016-01-01,3(1):107—113.
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