Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 84, Issue -, Pages 340-348Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2020.01.016
Keywords
3D rambutan-like-beta-NiOOH; Emulsion separation; Non-fluorinated; One-pot low temperature hydrothermal method; Superhydrophobic sponge
Funding
- Science and Technology Foundation of Ocean and Fisheries of Liaoning Province [201408, 201406]
- Liaoning Provincial Doctor Startup Fund Program [201601092]
- General project of scientific research of the Education Department of Liaoning Province [LQN201707]
- Foundation for Young Scholars of Liaoning University [2013LDQN13]
- Foundation for National Advance declaration of Liaoning University [LDGY201406]
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In this paper, oleophilic and superhydrophobic sponges were successfully constructed via a one-pot low temperature hydrothermal method anchoring three-dimensional rambutan-like-6-NiOOH microspheres into sponge skeletons and lauric acid modification. The constructed modified three-dimensional rambutan-like-beta-NiOOH @sponge (the static contact angle of 153.5 degrees) possessed outstanding oil sorption capacity (separation efficiency is nearly 99%) towards the various organics/oils and excellent recyclability after 30 cycles of adsorption-squeezing. Importantly, modified three-dimensional rambutan-like-BNiOOH @sponge is capable of separating surfactant-stabilized water-in-oil emulsions and can be utilized for continuous oil-water separation with the aid of a peristaltic pump. This is mainly due to the fact that the three-dimensional hierarchical rambutan-like micronano structure formed by self-assembly with high specific surface area provides a large number of hydrophobic interfaces to improve the hydrophobic properties of sponges. This work presents a new strategy for the designs multitasking oil-water separation materials. (C) 2020 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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