High performance graphene-based foam fabricated by a facile approach for oil absorption

Superhydrophobicity and high elasticity are the two key properties of oil-absorption porous materials. The hydrophobic graphene/carbon black coating on the skeleton of a melamine sponge facilitated the surface to form the micro/nanoscale roughness. The resulting sponge thus was superhydrophobic. Moreover, it inherited the extremely high elasticity of raw melamine sponge, which showed no plastic deformation even after 1000 compression/relaxing cycles. To our knowledge, this was the first superhydrophobic graphene-based porous monolith with such a high elasticity. Its absorbed oils could be recycled by simple squeezing and it was also regenerated by squeezing because of the high elasticity. In addition, it showed a high absorption capacity for common oil contaminations and its fabrication was facile. Therefore, it is really an excellent absorbent for the practical absorption of oil contaminations from water.

[1]  Bing Sun,et al.  Soft-template synthesis of 3D porous graphene foams with tunable architectures for lithium-O2 batteries and oil adsorption applications , 2014 .

[2]  Jian Li,et al.  Robust superhydrophobic attapulgite coated polyurethane sponge for efficient immiscible oil/water mixture and emulsion separation , 2016 .

[3]  H. Dai,et al.  Graphene-wrapped sulfur particles as a rechargeable lithium-sulfur battery cathode material with high capacity and cycling stability. , 2011, Nano letters.

[4]  Liangti Qu,et al.  A versatile, ultralight, nitrogen-doped graphene framework. , 2012, Angewandte Chemie.

[5]  Chaoyang Wang,et al.  Multifunctional, robust sponges by a simple adsorption–combustion method , 2015 .

[6]  Zhong-Zhen Yu,et al.  Vacuum-assisted synthesis of graphene from thermal exfoliation and reduction of graphite oxide , 2011 .

[7]  Ping Wang,et al.  Macroscopic multifunctional graphene-based hydrogels and aerogels by a metal ion induced self-assembly process. , 2012, ACS nano.

[8]  Sanboh Lee,et al.  Superhydrophobic and superoleophilic properties of graphene-based sponges fabricated using a facile dip coating method , 2012 .

[9]  Zhong-Zhen Yu,et al.  Superhydrophobic to Superhydrophilic Wetting Control in Graphene Films , 2010, Advanced materials.

[10]  Dan Li,et al.  Biomimetic superelastic graphene-based cellular monoliths , 2012, Nature Communications.

[11]  R. Ruoff,et al.  Highly enhanced performance of spongy graphene as an oil sorbent , 2014 .

[12]  Gregory J. Ehlert,et al.  Superhydrophobic functionalized graphene aerogels. , 2011, ACS applied materials & interfaces.

[13]  Xingrui Wang,et al.  An environmentally friendly method for the fabrication of reduced graphene oxide foam with a super oil absorption capacity. , 2013, Journal of hazardous materials.

[14]  Lifeng Yan,et al.  Preparation of graphene by the rapid and mild thermal reduction of graphene oxide induced by microwaves , 2010 .

[15]  Dirk Vanderzande,et al.  Investigation of melamine-formaldehyde cure by Fourier transform Raman spectroscopy , 1993 .

[16]  J. Goworek,et al.  Characterization of melamine-formaldehyde resins by XPS, SAXS, and sorption techniques , 2002 .

[17]  N. Koratkar,et al.  Superhydrophobic graphene foams. , 2013, Small.

[18]  Jie Yin,et al.  Self-assembly of graphene into three-dimensional structures promoted by natural phenolic acids , 2012 .

[19]  Chao Gao,et al.  Multifunctional, Ultra‐Flyweight, Synergistically Assembled Carbon Aerogels , 2013, Advanced materials.

[20]  D. Yan,et al.  Superior dispersions of reduced graphene oxide synthesized by using gallic acid as a reductant and stabilizer , 2013 .

[21]  M. Chan-Park,et al.  Superhydrophobic and superoleophilic hybrid foam of graphene and carbon nanotube for selective removal of oils or organic solvents from the surface of water. , 2012, Chemical communications.

[22]  Jingye（李景烨） Li,et al.  Ultra-light, compressible and fire-resistant graphene aerogel as a highly efficient and recyclable absorbent for organic liquids , 2014 .

[23]  Robert M. Wallace,et al.  The Role of Oxygen during Thermal Reduction of Graphene Oxide Studied by Infrared Absorption Spectroscopy , 2011 .

[24]  Lehui Lu,et al.  A superhydrophobic sponge with excellent absorbency and flame retardancy. , 2014, Angewandte Chemie.

[25]  Fenglin Yang,et al.  Covalent assembly of 3D graphene/polypyrrole foams for oil spill cleanup , 2013 .

[26]  V. Pham,et al.  Superhydrophobic silanized melamine sponges as high efficiency oil absorbent materials. , 2014, ACS applied materials & interfaces.

[27]  I-Wei Chen,et al.  A New Tubular Graphene Form of a Tetrahedrally Connected Cellular Structure , 2015, Advanced materials.

[28]  Luke P. Lee,et al.  Recent developments in superhydrophobic graphene and graphene-related materials: from preparation to potential applications. , 2015, Nanoscale.

[29]  D. Yan,et al.  A facile approach to superhydrophobic and superoleophilic graphene/polymer aerogels , 2014 .

[30]  Jian Li,et al.  Superhydrophobic meshes that can repel hot water and strong corrosive liquids used for efficient gravity-driven oil/water separation. , 2016, Nanoscale.

[31]  Dimos Poulikakos,et al.  Multifunctional superhydrophobic polymer/carbon nanocomposites: graphene, carbon nanotubes, or carbon black? , 2014, ACS applied materials & interfaces.

[32]  D. Losic,et al.  Outstanding adsorption performance of graphene–carbon nanotube aerogels for continuous oil removal , 2014 .

[33]  L. Qu,et al.  Preparation of multifunctional microchannel-network graphene foams , 2014 .

[34]  P. Ajayan,et al.  Controlled, Stepwise Reduction and Band Gap Manipulation of Graphene Oxide. , 2012, The journal of physical chemistry letters.

[35]  X. Xia,et al.  A green approach to the synthesis of graphene nanosheets. , 2009, ACS nano.

[36]  Xuan Li,et al.  Fabrication of a Superhydrophobic, Fire-Resistant, and Mechanical Robust Sponge upon Polyphenol Chemistry for Efficiently Absorbing Oils/Organic Solvents , 2015 .

[37]  G. Shi,et al.  Base‐Induced Liquid Crystals of Graphene Oxide for Preparing Elastic Graphene Foams with Long‐Range Ordered Microstructures , 2016, Advanced materials.

[38]  D. Yan,et al.  Superhydrophobic and superoleophilic graphene aerogel prepared by facile chemical reduction , 2015 .

[39]  Lei Jiang,et al.  Bioinspired Multifunctional Foam with Self‐Cleaning and Oil/Water Separation , 2013 .

[40]  R. Ruoff,et al.  Spongy Graphene as a Highly Efficient and Recyclable Sorbent for Oils and Organic Solvents , 2012 .

[41]  Liyuan Sun,et al.  A novel carbon nanotubes reinforced superhydrophobic and superoleophilic polyurethane sponge for selective oil–water separation through a chemical fabrication , 2015 .

[42]  Jianping Gao,et al.  Three-dimensional graphene-based aerogels prepared by a self-assembly process and its excellent catalytic and absorbing performance , 2013 .

[43]  Y. Gogotsi,et al.  Polymer/graphene hybrid aerogel with high compressibility, conductivity, and "sticky" superhydrophobicity. , 2014, ACS applied materials & interfaces.

[44]  Qing Zhu,et al.  Facile Removal and Collection of Oils from Water Surfaces through Superhydrophobic and Superoleophilic Sponges , 2011 .

[45]  Hua Feng,et al.  Robust Superhydrophobic Fabric Bag Filled with Polyurethane Sponges Used for Vacuum‐Assisted Continuous and Ultrafast Absorption and Collection of Oils from Water , 2016 .

[46]  Ying Li,et al.  Lightweight, Superelastic, and Mechanically Flexible Graphene/Polyimide Nanocomposite Foam for Strain Sensor Application. , 2015, ACS nano.

[47]  Xingyi Huang,et al.  Mechanically Flexible and Multifunctional Polymer‐Based Graphene Foams for Elastic Conductors and Oil‐Water Separators , 2013, Advanced materials.

[48]  Run-Cang Sun,et al.  An ultralight, elastic, cost-effective, and highly recyclable superabsorbent from microfibrillated cellulose fibers for oil spillage cleanup , 2015 .

[49]  A. Bhowmick,et al.  Atomic force microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and thermal studies of the new melamine fiber , 2002 .