期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 40, 期 -, 页码 47-53出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2016.06.005
关键词
Superhydrophobic; Oil separation; Silica nanoparticle; Mesh; Sponge
资金
- National Research Foundation of Korea [NRF-2013R1A1A2A10004353]
- Korea Environmental Industry & Technology Institute [2015001960003]
Superhydrophobic mesh and sponge were fabricated by a simple and fast dip-coating of silica nanoparticles (SiNP). Hexadecyltrimethoxysilane (HDTMS) was used as a hydrophobic reagent to make the superhydrophobic surface, by being grated onto the SiNP-mesh or sponge. As-made HDTMS-SiNP-mesh showed a water contact angle greater than 150, meaning the successful creation of a superhydrophobic surface, and a high separation efficiency (99%) of target oils from oily wastewater/seawater even after 20-times recycling test. In kinetic test, the higher the kinematic viscosity of the target oil, the slower the separation rate, but the higher the separation efficiency. Therefore, the present approach of simple and inexpensive fabrication of superhydrophobic HDTMS-SiNP-mesh or sponge could offer promising applications in oil-water separation and off-shore oil spills. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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