Design of High-Throughput Superoleophobic Copper Meshes for Oil-Water Separation
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Design of High-Throughput Superoleophobic Copper Meshes for Oil-Water Separation HaoRan Liu, BoKang Jia, GuanQiu Li, Sumaya Nooralla, TieJun Zhang* Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology, P. O. Box 54224, Abu Dhabi, UAE * Corresponding Author Email: [email protected] ABSTRACT Advanced materials with desired wettability are extremely important for environmental sustainability, such as oily industrial wastewater treatment and oil spill cleanup. To meet this demand, a scalable nanoengineering approach was developed to fabricate superhydrophilic and underwater superoleophobic inorganic meshes for cross-flow filtration and oil/water separation. The resulting nanostructured copper meshes exhibit superhydrophilicity and underwater superoleophobicity (oil contact angle approaching to 159o). With these meshes, very high values of filtration flux (≥900,000 Lh-1m-2) have been achieved, with ultra-low oil residue in the filtrate (
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