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Graphene-carbon nanotube aerogel as an ultra-light, compressible and recyclable highly efficient absorbent for oil and dyes
Wan, WC; Zhang, RY; Li, W; Liu, H; Lin, YH; Li, LN; Zhou, Y; 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.
2016
Source PublicationENVIRONMENTAL SCIENCE-NANO
ISSN2051-8153
Volume3Issue:1Pages:107—113
Subtype期刊文献
AbstractCarbon 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.
KeywordWater-purification Sorbent Materials Organic-solvents Hybrid Aerogels Spongy Graphene Spill Cleanup Performance Adsorption Removal Fibers
DOI10.1039/c5en00125k
Indexed BySCI
Language英语
WOS IDWOS:000374699800010
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25735
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorZhou, 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.
Recommended Citation
GB/T 7714
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,2016,3(1):107—113.
APA Wan, WC.,Zhang, RY.,Li, W.,Liu, H.,Lin, YH.,...&Zhou, Y .(2016).Graphene-carbon nanotube aerogel as an ultra-light, compressible and recyclable highly efficient absorbent for oil and dyes.ENVIRONMENTAL SCIENCE-NANO,3(1),107—113.
MLA Wan, WC,et al."Graphene-carbon nanotube aerogel as an ultra-light, compressible and recyclable highly efficient absorbent for oil and dyes".ENVIRONMENTAL SCIENCE-NANO 3.1(2016):107—113.
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