Overall
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received December 8, 2023
Accepted February 18, 2024
- 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.
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Abstract
With the rapid development of the marine transportation and oil exploration industries, oil spill accidents, such as ship
discharges and leakages from oil transport vessels and off shore drilling platforms, occur from time to time, turning oil spill
pollution at sea into an increasingly serious problem. Therefore, developing a rapid and effi cient oil spill pollution treatment
is of great signifi cance to protect the water environment. In this study, we used a simple dip-coating method to modify polydimethylsiloxane
and nano-alumina onto a polyurethane sponge skeleton to prepare a super-oleophilic/super-hydrophobic
porous adsorbent called Al 2 O 3 @PDMS/PU. The prepared Al 2 O 3 @PDMS/PU has a contact angle of 156.8° with water and
can adsorb oil or organic solvents equivalent to 16–38 times its own weight. Based on the excellent super-oleophilic/superhydrophobic
properties of Al 2 O 3 @PDMS/PU, we designed an oil collection device that can continuously recover oil and
organic solvents. Unlike the traditional oil recovery method, this device integrates the oil–water separation and oil recovery
processes such that the adsorption capacity of the adsorbent is no longer limited by its own weight and volume. This device
shows broad application prospects in emergencies, such as oil leakages from drilling platforms and organic solvent leakage.