Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 373, Issue -, Pages 725-732Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2019.04.009
Keywords
Metal organic framework; Graphene oxide; Steel mesh; Super-hydrophilic; Oil/water mixture separation
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Funding
- Key Research and Development Program of Shandong Province [2018GGX102012]
- Open Project Program of State Key Laboratory of Petroleum Pollution Control [PPC2017007]
- CNPC Research Institute of Safety and Environmental Technology, Taishan Scholar Foundation [ts20130929]
- Graduate Innovation Fund of China University of Petroleum [YCX2018072]
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A hierarchical structured steel mesh decorated with metal organic framework (UiO-66-NH2) nanoparticles/graphene oxide (GO) nanosheets was successfully prepared via a simple self-assemble method. Because water molecules tend to build hydrogen bonds with the amine, carboxyl and hydroxyl functional groups of UiO-66-NH2/GO hierarchical structure, the hierarchical structure can easily capture water and tightly lock the water to build a stable water layer on the steel mesh surface and block oil in contact with the steel mesh. Therefore, the obtained hierarchical structured steel mesh exhibits super-hydrophilicity, underwater super-oleophobicity, excellent oil resistance and outstanding oil/water separation performance with a superior high permeating flux (54,500 L m(-2) h(-1)) and rejection (> 99.9%) under gravity force, indicating the mesh possesses great potential for treating oily wastewater.
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