Wen Zhipeng, Yang Huilin, Lv Mingzhe, Yu Chuanming, Li Yong
Faculty of Chemistry and Environmental Science, Guangdong Ocean University Zhanjiang 524088 P. R. China
Institute of Agricultural Product Processing Research, Chinese Academy of Tropical Agricultural Sciences Zhanjiang 524001 China.
RSC Adv. 2023 Aug 30;13(37):25920-25929. doi: 10.1039/d3ra03997h. eCollection 2023 Aug 29.
Superhydrophobic porous materials exhibit remarkable stability and exceptional efficacy in combating marine oil spills and containing oily water discharges. This work employed the multi-template high internal phase emulsion method to fabricate a multi-template porous superhydrophobic foam (MTPSF). The materials were characterized through SEM, IR spectroscopy, contact angle measurement, and an electronic universal testing machine. Moreover, the materials' oil-water separation capability, reusability, and compressibility were thoroughly evaluated. The obtained results demonstrate that the material displays a water contact angle of 143° and an oil contact angle of approximately 0°, thus exhibiting superhydrophobic and superoleophilic properties. Consequently, it effectively facilitates the separation of oil slicks and heavy oil underwater. Furthermore, the MTPSF conforms to the second kinetic and Webber-Morris models concerning the oil absorption process. MTPSF exhibits an outstanding oil absorption capacity, ranging from 39.40 to 102.32 g g, while showcasing reliable reusability, high recovery efficiency, and excellent compressibility of up to 55%. The above exceptional attributes render the MTPSF highly suitable for oil-water separation applications.
超疏水多孔材料在应对海洋溢油和含油污水排放方面表现出卓越的稳定性和非凡的功效。这项工作采用多模板高内相乳液法制备了一种多模板多孔超疏水泡沫（MTPSF）。通过扫描电子显微镜（SEM）、红外光谱、接触角测量和电子万能试验机对材料进行了表征。此外，还对材料的油水分离能力、可重复使用性和压缩性进行了全面评估。所得结果表明，该材料的水接触角为143°，油接触角约为0°，因此具有超疏水和超亲油性能。因此，它有效地促进了水下浮油和重油的分离。此外，MTPSF在吸油过程中符合二级动力学模型和韦伯-莫里斯模型。MTPSF表现出出色的吸油能力，范围为39.40至102.32 g/g，同时展现出可靠的可重复使用性、高回收效率和高达55%的优异压缩性。上述卓越特性使MTPSF非常适合油水分离应用。
