期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 30, 页码 34413-34422出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c08803
关键词
metal-organic frameworks; defect engineering; modulation synthesis; UiO-66; wettability; oil/water separation
资金
- University of Edinburgh
- School of Engineering for Edinburgh Global Research Scholarship
- School of Engineering, the University of Edinburgh
- UNCAGE-ME, an Energy Frontier Research Center - US Department of Energy, Office of Science, Basic Energy Sciences [DE-SC0012577]
Zirconium-based metal-organic frameworks (MOFs) have attracted interest due to their chemical and thermal stabilities and structural tunability. In this work, we demonstrate the tuning of the wettability of a UiO-66 structure via defect-engineering for efficient oil/water separation. UiO-66 crystals with controlled levels of missing-linker defects were synthesized using a modulation approach. As a result, the hydrophilicity of the defect-engineered UiO-66 (d-UiO-66) can be varied. In addition, a thin layer of hydrophilic d-UiO-66 was successfully fabricated on a series of stainless steel meshes (d-UiO-66@mesh), which exhibited excellent superhydrophilic and underwater superoleophobic properties and displayed interesting separation performance for various oil/water mixtures.
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