| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Fabrication of Porous Oil-Absorbing P(St-DVB) by High Internal Phase Emulsion and Its Application for Oil-Water Separation |
| YU Chuanming, ZENG Shengwei, LIU Yeyuan, SITU Ziqing, LIU Ke, TIAN Lifen, LUO Wenjing, LIANG Yuanwei, LI Yong
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| Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, China |
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Abstract To cope with the increasing oil spill accidents and the intentional discharge of oily wastewater, a new oil-absorbing material with superhydrophobicity and reusability is needed. In this paper, a compressible polystyrene sponge material was fabricated via a high internal phase emulsion method. The structure of the material was characterized by SEM and IR, and the oil-water separation performance of the material was tested. The results indicated that the addition of oyster shell powder (OSP) to the traditional small molecule emulsifier Span 80 can effectively prevent the combination of droplets and significantly improve the stability of the emulsion. Azobisisobutyronitrile (AIBN) initiated free radical polymerization to produce a sponge material with porous structure at 75 ℃. The density, pore size and porosity of the material can be adjusted by water volume. When the volume ratio of water reaches 98.22%, the material exhibits compressibility. The water contact angle (WCA) of the material was tested to be 147.8°, and the oil contact angle was approaching to 0°, indicating its superhydrophobicity and superlipophilicity. It can selectively remove various oily contaminants from water with high absorption capacity of 46.7—101.9 g/g in 30 seconds. Material regeneration can be simply achieved via centrifugation or squeeze. Therefore, the OSP@PS sponge has a great potential application in oily water treatment.
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Published: 23 February 2021
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| Fund:This work was financially supported by Colleges Innovation Project of Guangdong Province (2017KQNCX093), Science and Technology Plan Project of Zhanjiang City (2017A02016, 2018A01042), Program for Scientific Research Start-up Funds of Guangdong Ocean University (R18018), College Student Innovation and Entrepreneurship Training Program of Guangdong Ocean University (CXXL2019300, CXXL2019301, CXXL2020294). |
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Corresponding Authors:
790007033@qq.com;yongli6808@126.com
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About author:: Chuanming Yu received his Ph.D. degree in June 2017 from Nanjing University of Science and Technology. He is currently an instructor in Guangdong Ocean University, focusing on the research of functional materials for oil-water separation.
Yuanwei Liang received his Ph.D. degree from Jinan University in June 2018. He is currently an instructor in Guangdong Ocean University, focusing on the synthesis and application of innovative targeted drugs.
Yong Li received his Ph.D. degree in Jilin University in 2005. He is currently a professor in faculty of Chemistry and Environmental Science of Guangdong Ocean University. His research interests are functional materials for water treatment and optical materials. |
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2021, Vol. 35 
