Hydrophobic Meshes for Oil Spill Recovery Devices
- 30 January 2013
- journal article
- Published by American Chemical Society (ACS) in ACS Applied Materials & Interfaces
- Vol. 5 (3), 774-781
- https://doi.org/10.1021/am302338x
Abstract
Widespread use of petrochemicals often leads to accidental releases in aquatic environments, occasionally with disastrous results. We have developed a hydrophobic and oleophilic mesh that separates oil from water continuously in situ via capillary action, providing a means of recovering spilt oil from surface waters. Steel mesh is dip-coated in a xylene solution of low-density polyethylene, creating a hydrophobic surface with tunable roughness and opening size. The hydrophobic mesh allows oil to pass through the openings while preventing the concomitant passage of water. A bench-top prototype demonstrated the efficacy of such an oil recovery device and allowed us to quantify the factors governing the ability of the mesh to separate oil and water. Preliminary data analysis suggested that the oleophilic openings behave somewhat like capillary tubes: the oil flux is inversely proportional to oil viscosity, and directly proportional to the size of the mesh openings. An unpinned meniscus model was found to predict the water intrusion pressure successfully, which increased as the opening size decreased. The trade-off between water intrusion and oil flow rate suggests an optimal pore size for given oil properties and sea conditions.Keywords
This publication has 27 references indexed in Scilit:
- A hierarchical mesh film with superhydrophobic and superoleophilic properties for oil and water separationJournal of Chemical Technology & Biotechnology, 2011
- Remediation Technologies for Marine Oil Spills: A Critical Review and Comparative AnalysisAmerican Journal of Environmental Sciences, 2011
- The performance of superhydrophobic and superoleophilic carbon nanotube meshes in water–oil filtrationCarbon, 2011
- Vertically-aligned carbon nano-tube membrane filters with superhydrophobicity and superoleophilicityCarbon, 2010
- Cost-effectiveness criteria for marine oil spill preventive measuresReliability Engineering & System Safety, 2008
- Fabrication of Superhydrophobic and Superoleophilic Polystyrene Surfaces by a Facile One‐Step MethodMacromolecular Rapid Communications, 2007
- Creating superhydrophobic surfaces with flowery structures on nickel substrates through a wet-chemical-processJournal of Materials Chemistry, 2007
- A Super‐Hydrophobic and Super‐Oleophilic Coating Mesh Film for the Separation of Oil and WaterAngewandte Chemie International Edition, 2004
- A high-level synthesis of oil spill response equipment and countermeasuresJournal of Hazardous Materials, 2004
- Porous Materials for Oil Spill Cleanup: A Review of Synthesis and Absorbing PropertiesJournal of Porous Materials, 2003