4.6 Article

A Co3O4 nano-needle mesh for highly efficient, high-flux emulsion separation

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 4, Issue 31, Pages 12014-12019

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta02579j

Keywords

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Funding

  1. NSFC [21433012, 21374001, 21134003, 21222309]
  2. 863 Program [2013AA032203]
  3. 973 Program [2012CB933200]
  4. Program for New Century Excellent Talents in University of China
  5. Fundamental Research Funds for the Central Universities
  6. China Scholarship Council [201406025059, 201506025110]

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A Co3O4 nano-needle steel mesh was prepared by a facile hydro thermal synthesis and subsequent calcination method. The mesh is superhydrophilic in air and superoleophobic low-adhesive underwater. More importantly, the mesh exhibits outstanding chemical stability even in strongly basic and high-concentration salt solutions, which accomplishes the separation of alkaline and saline oil-in-water emulsions with high efficiency (above 99%) and high flux (2000 L m(-2) h(-1)).

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