Surface roughness induced superhydrophobicity of graphene foam for oil-water separation
Yang, SD (Yang, Sudong);   Chen, L (Chen, Lin);   Wang, CC (Wang, Chunchun);   Rana, M (Rana, Masud);   Ma, PC (Ma, Peng-Cheng); Ma, PC
2017
发表期刊JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷号508期号:12页码:254-262
摘要

Surface free energy and roughness are two predominant factors governing the hydrophilicity/ hydrophobicity of materials. This paper reported the surface roughness induced hydrophobicity of graphene foam by incorporating silica nanoparticles onto graphene sheet via a sol-gel method and subsequent modification using silane. Various techniques were employed to characterize the morphology, composition and surface properties of sample. The results showed that the as-prepared graphene foam exhibited a superhydrophobic surface with a high water contact angle of 156, as well as superoleophilicity with excellent adsorption capacities for a variety of oil compounds. Benefiting from the integration of enhancement on the surface roughness and reduction on the surface free energy of material, the graphene foam developed in this study had the capability to effectively separate oil-water mixture with excellent stability and recyclability.

关键词Graphene Superhydrophobicity Surface Roughness Oil-water Separation Adsorption
DOI10.1016/j.jcis.2017.08.061
收录类别SCI
WOS记录号WOS:000412152500030
引用统计
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/5002
专题中国科学院特殊环境功能材料与器件重点试验室
通讯作者Ma, PC
作者单位Chinese Acad Sci, Lab Environm Sci & Technol, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China;Xinjiang Uygur Autonomous Reg Prod Qual Supervis, Urumqi 830011, Peoples R China;Shihezi Univ, Sch Chem & Chem Engn, Shihezi 832003, Peoples R China
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Yang, SD ,Ma, PC. Surface roughness induced superhydrophobicity of graphene foam for oil-water separation[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2017,508(12):254-262.
APA Yang, SD ,&Ma, PC.(2017).Surface roughness induced superhydrophobicity of graphene foam for oil-water separation.JOURNAL OF COLLOID AND INTERFACE SCIENCE,508(12),254-262.
MLA Yang, SD ,et al."Surface roughness induced superhydrophobicity of graphene foam for oil-water separation".JOURNAL OF COLLOID AND INTERFACE SCIENCE 508.12(2017):254-262.
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