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A novel reusable superhydrophilic NiO/Ni mesh produced by a facile fabrication method for superior oil/water separation

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Abstract

There is a critical need to develop durable and reusable materials for oil–water separation, especially in harsh environments. Traditional anti-fouling mesh-based separation technologies are not reusable and limited by poor temperature resistance. Here we report a novel superhydrophilic and underwater superoleophobic NiO/Ni mesh which shows superior oil/water separation in harsh environments, with reusable and durable properties that can separate different oil–water mixtures with and without sand and soil contaminants, a >99% separation efficiency and up to 5.4 × 104 L m−2 h−1 permeate flux. The material is able to retain its superior performance over the 20 cycles we measured and for mixtures of sticky oils its performance is easily recoverable after a quick heat treatment. Our separation methodology is solely gravity-driven and consequently is expected to be highly energy-efficient. We anticipate that our separation methodology will have numerous applications, including in the clean-up of oil spills, wastewater treatment and other harsh condition oil–water separations.

Graphical abstract: A novel reusable superhydrophilic NiO/Ni mesh produced by a facile fabrication method for superior oil/water separation

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Publication details

The article was received on 04 Mar 2017, accepted on 19 Apr 2017 and first published on 19 Apr 2017


Article type: Communication
DOI: 10.1039/C7TA01987D
Citation: J. Mater. Chem. A, 2017, Advance Article
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    A novel reusable superhydrophilic NiO/Ni mesh produced by a facile fabrication method for superior oil/water separation

    Z. Yu, F. F. Yun, Z. Gong, Q. Yao, S. Dou, K. Liu, L. Jiang and X. Wang, J. Mater. Chem. A, 2017, Advance Article , DOI: 10.1039/C7TA01987D

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