Mechanically robust, solar-driven, and degradable lignin-based polyurethane adsorbent for efficient crude oil spill remediation
文献类型：期刊论文
| 作者 | Ma, Xiaozhen; Zhang, Chang; Gnanasekar, Pitchaimari; Xiao, Peng; Luo, Qing; Li, Shuqi; Qin, Dongdong; Chen, Tao; Chen, Jing; Zhu, Jin |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2021 |
| 卷号 | 415 |
| 关键词 | FAST CLEANUP HEAVY OIL LIQUEFACTION FOAM SPONGE |
| 英文摘要 | Rapid cleanup of crude oil spills is a worldwide challenge because heavy oil components (>10(3) mPa.s) are difficult for removal by conventional porous oil sorbents due to their inherent high viscosities. In this work, we took advantage of the photothermal effect by using sunlight as the energy source to heat heavy oil components for significantly reducing their viscosities to achieve a fast crude oil cleanup. A carbon nanotube (CNT) modified lignin-based polyurethane foam was fabricated as a photothermal sorbent that exhibited outstanding adsorption capacity for heavy oil. The modified foam achieved nearly full sunlight absorption (97%) with its surface temperature reaching up to 90.3 degrees C within 500 s owing to the excellent photothermal effect of CNTs. The resulting solar heating effectively reduced the viscosity of the heavy oil, which enabled the modified foam to quickly adsorb more than six times (6.34 +/- 0.27 g/g) of its weight of crude oil within 6 min under one sun illumination (1.00KW/m(2)). Meanwhile, the lignin-based foam adsorbents were degradable in alkaline environments and CNTs can be recovered from the same condition. They could reach a degradation efficiency of 88.03% in 2 mol/L NaOH aqueous solution at 80 degrees C for 10 h, and the degradation rate was as high as 6.25 mg/h. Given the novel structural design, excellent environmental friendliness, rapid oil adsorption rate, and high oil adsorption capacity, this work provides a promising solution for addressing catastrophic large-area viscous crude oil spills. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21769]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Xiao, P 2.Chen, J (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Div Polymer & Composite Mat, Key Lab Biobased Polymer Mat Technol & Applicat Z, Ningbo 315201, Zhejiang, Peoples R China. 3.Yan, N (corresponding author), Univ Toronto, Dept Chem Engn & Appl Chem, 200 Coll St, Toronto, ON M5S 3E5, Canada. |
| 推荐引用方式 GB/T 7714 | Ma, Xiaozhen,Zhang, Chang,Gnanasekar, Pitchaimari,et al. Mechanically robust, solar-driven, and degradable lignin-based polyurethane adsorbent for efficient crude oil spill remediation[J]. CHEMICAL ENGINEERING JOURNAL,2021,415. |
| APA | Ma, Xiaozhen.,Zhang, Chang.,Gnanasekar, Pitchaimari.,Xiao, Peng.,Luo, Qing.,...&Yan, Ning.(2021).Mechanically robust, solar-driven, and degradable lignin-based polyurethane adsorbent for efficient crude oil spill remediation.CHEMICAL ENGINEERING JOURNAL,415. |
| MLA | Ma, Xiaozhen,et al."Mechanically robust, solar-driven, and degradable lignin-based polyurethane adsorbent for efficient crude oil spill remediation".CHEMICAL ENGINEERING JOURNAL 415(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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