材料科学
复合材料
螺旋(铁路)
碳纤维
吸收(声学)
热的
增强碳-碳
化学工程
复合数
机械工程
物理
气象学
工程类
作者
Shaohua Shi,Yulin Tang,Guizhen Wang,Jinchuan Zhao,Gengping Wan,Lihong Wu,Jieping Wang,Chul B Park,Guilong Wang
标识
DOI:10.1016/j.jmst.2022.12.019
摘要
Two key limitations affecting the commercial application of carbon foams for fast clean-up of varied oils are the complex synthesis process and poor mechanical stability. In this work, an effective method is reported to fabricate the efficient oil-absorbing materials ([email protected]) of carbon spiral fibers (CSFs) anchored on melamine carbon foam (MCF) with superior mechanical properties and excellent photothermal conversion. The interwoven CSFs can not only provide extra rigidity but also reduce the stress concentration of the carbon skeleton, which greatly improves the mechanical properties with 6.3 times maximum compression stress and 4.5 times ultimate tensile strength than MCF. In addition, the pure carbon component can reduce the interface resistance and excite the free electrons more easily, thus realizing high-efficiency photothermal conversion in a wide range of wavelengths. Under light irradiation, the [email protected] can be quickly heated up to 70°C and achieve ultra-high absorption of crude oil, up to 62 g g−1, due to its low density and large absorption volume. Meanwhile, the [email protected] exhibits impressive absorption stability with persistent superhydrophobicity and a high recovery efficiency of over 85%. Superadding its simple preparation process, low production cost, and excellent acid-alkali resistance, the [email protected] showed great commercial potential for effectively absorbing varied oils.
科研通智能强力驱动
Strongly Powered by AbleSci AI