Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received February 22, 2016
Accepted June 28, 2016
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
Superhydrophilic.underwater superoleophobic TiO2-coated mesh for separation of oil from oily seawater/wastewater
Department of Chemical Engineering, Kwangwoon University, Kwangwoon-ro 20, Nowon-gu, Seoul 01897, Korea
korea1@kw.ac.kr
Korean Journal of Chemical Engineering, November 2016, 33(11), 3203-3206(4), 10.1007/s11814-016-0184-5
Download PDF
Abstract
Oil/water separation is a topic of interest worldwide because of increasing release of industrial oily wastewater and frequent leakage of crude oil. Superhydrophilic and underwater superoleophobic meshes were fabricated by simple and fast dip-coating of nanosized TiO2 on a stainless steel mesh with a 50 μm pore size. The coated mesh was used for oil/water separation by gravity-driven filtration without additional energy. After acid treatment and TiO2 coating of the mesh, its surface property was altered from hydrophobic to superhydrophilic and superoleophobic. Oil/water separation was achieved in 3 s with an efficiency of 98-99%, irrespective of oily water type (seawater or wastewater). Initial separation efficiency was maintained during a test involving 20 recycles. Therefore, the as-made TiO2-coated mesh can be used in practical applications such as for wastewater purification, and in the petroleum industry.
References
Shannon MA, Bohn PW, Elimelech M, Georgiadis JG, Marinas BJ, Mayes AM, Nature, 452, 301 (2008)
Gondal MA, Sadullah MS, Dastageer MA, McKinley GH, Panchanathan D, Varanasi KK, ACS Appl. Mater. Interfaces, 6, 13422 (2014)
Li J, Yan L, Li H, Li W, Zha F, Lei Z, J. Mater. Chem. A, 3, 1469 (2015)
Cheng ZJ, Wang JW, Lai H, Du Y, Hou R, Li C, Zhang NQ, Sun KN, Langmuir, 31(4), 1393 (2015)
Li J, Yan L, Li W, Li J, Zha F, Lei Z, Mater. Lett., 153, 62 (2015)
Kota AK, Kwon G, Choi W, Mabry JM, Tuteja A, Nature Commun., 3, 1025 (2012)
Wang QJ, Cui Z, Mao Y, Chen QM, Appl. Surf. Sci., 253(23), 9054 (2007)
Kester DR, Duedall IW, Connors DN, Pytkowicz RM, Limnol. Oceanogr., 12, 176 (1967)
Le Clech P, Jefferson B, Chang IS, Judd SJ, J. Membr. Sci., 227(1-2), 81 (2003)
Cho SR, Cho HG, J. Korean Chem. Soc., 57, 432 (2013)
Zheng X, Guo Z, Tian D, Zhang X, Li W, Jiang L, ACS Appl. Mater. Interfaces, 7, 4336 (2015)
Abraham A, Kardos A, Mezei A, Campbell RA, Vargat I, Langmuir, 30(17), 4970 (2014)
Gondal MA, Sadullah MS, Dastageer MA, McKinley GH, Panchanathan D, Varanasi KK, ACS Appl. Mater. Interfaces, 6, 13422 (2014)
Li J, Yan L, Li H, Li W, Zha F, Lei Z, J. Mater. Chem. A, 3, 1469 (2015)
Cheng ZJ, Wang JW, Lai H, Du Y, Hou R, Li C, Zhang NQ, Sun KN, Langmuir, 31(4), 1393 (2015)
Li J, Yan L, Li W, Li J, Zha F, Lei Z, Mater. Lett., 153, 62 (2015)
Kota AK, Kwon G, Choi W, Mabry JM, Tuteja A, Nature Commun., 3, 1025 (2012)
Wang QJ, Cui Z, Mao Y, Chen QM, Appl. Surf. Sci., 253(23), 9054 (2007)
Kester DR, Duedall IW, Connors DN, Pytkowicz RM, Limnol. Oceanogr., 12, 176 (1967)
Le Clech P, Jefferson B, Chang IS, Judd SJ, J. Membr. Sci., 227(1-2), 81 (2003)
Cho SR, Cho HG, J. Korean Chem. Soc., 57, 432 (2013)
Zheng X, Guo Z, Tian D, Zhang X, Li W, Jiang L, ACS Appl. Mater. Interfaces, 7, 4336 (2015)
Abraham A, Kardos A, Mezei A, Campbell RA, Vargat I, Langmuir, 30(17), 4970 (2014)
