期刊
JOURNAL OF MEMBRANE SCIENCE
卷 565, 期 -, 页码 303-310出版社
ELSEVIER
DOI: 10.1016/j.memsci.2018.08.035
关键词
Janus membrane; Ceramic; Oil/water emulsion; Anti-fouling; Gravity separation
资金
- National Natural Science Foundation of China [21706115, 91534108]
- National Key Research and Development Program of China [2016YFC0205700]
- Project of Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Program for Changjiang Scholars and Innovative Research Team in University [IRT13070]
- Peak Specialists in Six Industries High-level Specialist Fund of Jiangsu Province [2012JNHB016]
- National High Technical Research Program of China [2012AA03A606]
Herein, we reported a facile and effective method to fabricate Janus ceramic membrane (JCM) and applied the membrane in the separation of oil/water emulsions. The original hydrophilic ceramic membrane was modified by hexadecyltrimethoxysilane (HDTMS), and the obtained hydrophobic membrane was exposed to O-2/N-2 plasma to achieve a bistratal hydrophilic-hydrophobic structure. Basically, JCM has underwater superoleophobicity and underoil superhydrophobicity on its hydrophilic plasma-treated and hydrophobic modified side, respectively; thus, it possesses an intelligent separation capability in many systems, including oil-in-water (O/W) emulsions with its hydrophilic side and water-in-oil (W/O) emulsions with its hydrophobic side. Moreover, on the hydrophilic side, JCM possesses an outstanding anti-fouling property, which is due to its higher surface free energy. The hydrophobic side could sieve W/O emulsions driven solely by gravity. An apparatus that could support changing-over filtration between W/O and O/W emulsions is devised and the long-time stability is also authenticated. We envision that our work can lead to the further development of Janus membranes in ceramic materials.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据