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Facile fabrication of anti-corrosive superhydrophobic diatomite coatings for removal oil from harsh environments.
- Source :
-
Separation & Purification Technology . Dec2017, Vol. 189, p335-340. 6p. - Publication Year :
- 2017
-
Abstract
- The separation of oil/water mixtures under acidic, alkaline and salty conditions remains a great challenge. Facile, low-cost and easily scale-up processes for the fabrication functional materials to effective oil/water separation under harsh environment are urgently desired. Herein, a superhydrophobic diatomite coating was successfully fabricated by a facile one-step spray-coating process for the gravity driven separation of oil/water mixtures in strong acidic, alkaline and salty environments. In addition, the as-prepared superhydrophobic diatomite-coated meshes can separate a series of oil/ water mixtures with separation efficiency up to 99.8%. Moreover, the as-prepared coated mesh still maintained a separation efficiency exceeding 99.5% and stable recyclability after 40 separation cycles. Meanwhile, the electrochemical corrosion test results indicated that the superhydrophobic coating maintained excellent chemical stability and corrosion resistant effect in 3.5 wt% NaCl solutions. Therefore, our work provides a facile method to fabricate the superhydrophobic diatomite coatings with outstanding anti-corrosive property that can be used for removal oils from harsh environment. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13835866
- Volume :
- 189
- Database :
- Academic Search Index
- Journal :
- Separation & Purification Technology
- Publication Type :
- Academic Journal
- Accession number :
- 125310946
- Full Text :
- https://doi.org/10.1016/j.seppur.2017.08.024