Facile fabrication of underwater superoleophobic TiO 2 coated mesh for highly efficient oil/water separation
| Autor: | Wenfang Hu, Fei Zha, Dianming Li, Long Yan, Ziqiang Lei, Jian Li |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Fabrication Environmental remediation 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Contact angle chemistry.chemical_compound Colloid and Surface Chemistry Chemical engineering chemistry Superhydrophilicity Oil water Underwater Oily wastewater 0210 nano-technology Polyurethane |
| Zdroj: | Colloids and Surfaces A: Physicochemical and Engineering Aspects. 489:441-446 |
| ISSN: | 0927-7757 |
| Popis: | The removal of oil and organic pollutants from water is highly desired because of the frequent oil spill accidents and increase of industrial oily wastewater. Here, underwater superoleophobic TiO2 coated mesh was fabricated through spraying TiO2 nanoparticles and polyurethane mixtures onto stainless steel mesh. The underwater superoleophobic TiO2 coated mesh was then used to separate water from oil/water mixtures, where only the water permeates through the mesh while the oil is repelled on the mesh. In addition, the separation efficiency of the coated mesh is as high as 99.0%. Furthermore, the TiO2 coated mesh still maintained high separation efficiency over 97.5% and stable recyclability after 40 separation cycles. Thus, such superhydrophilic and underwater superoleophobic TiO2 coated mesh is a very potential material for the application of oil spill cleanup and industrial oily wastewater remediation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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