College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou, Fujian 350002, PR China.
College of Material Science and Engineering, National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, PR China.
J Hazard Mater. 2022 Jun 15;432:128740. doi: 10.1016/j.jhazmat.2022.128740. Epub 2022 Mar 21.
Rapid and efficient clean-up of viscous crude oil spills is still a global challenge due to its high viscous and poor flowability at room temperature. The hydrophobic/oleophilic absorbents with three-dimensional porous structure have been considered as a promising candidate to handle oil spills. However, they still have limited application in recovering the high viscous oil. Inspired by the viscosity of crude oil depended on the temperature, a solar-heated ink modified plant fiber sponge (PFS@GC) is fabricated via a simple and environmentally friendly physical foaming strategy combined with in-situ ink coating treatment. After wrapping by the polydimethylsiloxane (PDMS), the modified PFS@GC (PFS@GC@PDMS) exhibits excellent compressibility, high hydrophobic (141° in water contact angle), solar absorption (> 96.0%), and oil absorptive capacity (12.0-27.8 g/g). Benefiting from the favorable mechanical property and photothermal conversion capacity, PFS@GC@PDMS is demonstrated as a high-performance absorbent for crude oil clean-up and recovery. In addition, PFS@GC@PDMS can also be applied in a continuous absorption system for uninterrupted recovering of oil spills on the water surface. The proposed solar-heated absorbent design provides a new opportunity for exploring biomass in addressing large-scale oil spill disasters.
由于室温下高粘度和低流动性，快速有效地清理粘性原油仍然是一个全球性的挑战。具有三维多孔结构的疏水/亲油吸收剂已被认为是处理溢油的一种很有前途的候选材料。然而，它们在回收高粘性油方面的应用仍然有限。受原油粘度取决于温度的启发，通过一种简单且环保的物理发泡策略结合原位油墨涂覆处理，制备了太阳能加热油墨改性植物纤维海绵（PFS@GC）。用聚二甲基硅氧烷（PDMS）包裹后，改性 PFS@GC（PFS@GC@PDMS）表现出优异的可压缩性、高疏水性（水接触角为 141°）、太阳能吸收能力（>96.0%）和吸油能力（12.0-27.8 g/g）。得益于良好的机械性能和光热转换能力，PFS@GC@PDMS 被证明是一种用于原油清理和回收的高性能吸收剂。此外，PFS@GC@PDMS 还可以应用于连续吸收系统，用于不间断地回收水面上的溢油。这种太阳能加热吸收剂的设计为探索生物质在解决大规模溢油灾害方面提供了新的机会。
