Journal
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
Volume 85, Issue 1, Pages 23-30Publisher
SPRINGER
DOI: 10.1007/s10971-017-4518-5
Keywords
Electrophoretic deposition; Stainless steel mesh; Underwater superoleophobicity; ZrO2 sol; Oil/water separation
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Funding
- National Natural Science Foundation of China [21776094]
- Natural Science Foundation of Guangdong Province [2015A030313506]
- Science and Technology Planning Project of Guangdong Province [2014A010105052, 2017A010103039]
- National Undergraduate Innovative and Entrepreneurial Training Program [201710561091]
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Underwater superoleophobic mesh has been broadly investigated but its mechanical durability was seldom mentioned. Thus, in this work a ZrO2-coated stainless steel mesh was prepared for durable oil/water separation by an electrophoretic deposition method using ZrO2 sol as electrolyte. The ZrO2 coating is of hierarchical structure, making the Z-SSM superhydrophilic in air and superoleophobic underwater. The mesh exhibited outstanding separation efficiency of above 97.5% for various oil/water mixtures. The separation efficiency of n-hexane/water mixture maintained over 98% after 50 times of recycle separation. Moreover, the coated mesh maintained high separation efficiency after 30 cycles of abrasion, showing good stability. [GRAPHICS]
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