石墨烯
材料科学
光热治疗
粘度
化学工程
提高采收率
氧化物
环境修复
吸收(声学)
复合材料
纳米技术
污染
生态学
生物
工程类
冶金
作者
Yuhan Tang,Yongfeng Wang,Gang Zhao,Xiaogang Li,Z. Gu,Rongrong Nian,D. W. Zhang,Lihong Xu,Zhaoxing Lin,Lina Chen,Xiangfang Peng,Tingjie Chen
标识
DOI:10.1016/j.apsusc.2023.159052
摘要
Developing solar-assisted self-heating hydrophobic absorbents for efficient cleanup of viscous crude oil spills is attracting attention. However, using a simple, environment-friendly, and scalable fabrication approach to prepare solar-heating absorbent remains a big challenge. Due to the viscosity of crude oil can enormously decrease with increasing temperature, the self-heating absorbent which can in-situ raise the temperature to decrease the viscosity of crude oil shows potential application in accelerating the absorption and recovery of crude oil. Here, a hydrophobic and photothermal reduced graphene oxide and hexamethyldisilane synergistically modified plant fiber sponge (PFS@rGO@HMDS) is developed by an easy and efficient mechanical foaming strategy combined with in-situ vapor and thermal reduction treatment. The obtained PFS@rGO@HMDS exhibits good hydrophobicity (135° in water contact angle), excellent mechanical compressibility and durability, high solar absorption (>97.84 %), and oil absorptive capacity (27.3–52.0 g/g). Benefiting from the excellent photothermal conversion capacity, the surface temperature at the equilibrium of PFS@rGO@HMDS can reach 71.2 °C under 1 sun irradiation to reduce the viscosity of crude oil and realize the rapid crude oil spill remediation. The PFS@rGO@HMDS also can be used in a continual absorbent system to accomplish the ongoing and quick repair of viscous oil spills from the seawater surface, showcasing its enormous potential for use in huge-scale oil spill clean-up and recovery.
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