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Lotus and Poikilotherm Inspired Adsorbent with Superior Photothermal Effects for the Cleanup of High-viscous Crude Oil
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  • Yuekun Lai,
  • Hiroshi Fu,
  • Yang Chen,
  • Tong Zhang,
  • Xi Wang,
  • Songnan Zhang,
  • Jianying Huang,
  • Di Zhang,
  • Xiaoming Qian
Yuekun Lai
Fuzhou University

Corresponding Author:yklai@fzu.edu.cn

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Hiroshi Fu
Tiangong University
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Yang Chen
Tiangong University
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Tong Zhang
Tiangong University
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Xi Wang
Tiangong University
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Songnan Zhang
Tiangong University
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Jianying Huang
Fuzhou University
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Di Zhang
Tiangong University
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Xiaoming Qian
Tiangong University
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Abstract

The frequent occurrence of oil spills not only results in the waste of petroleum resources, but also poses a serious threat to the marine ecological environment. Considering the large amount of crude oils with high viscosity, it is urgent to develop an adsorbent capable of efficiently reducing the viscosity for the cleanup of oil spills. Inspired by the “lotus effect” and “poikilotherm which utilize the solar energy for thermoregulation”, the low surface energy material polydimethylsiloxane (PDMS) and polypyrrole (PPy) were loaded over the island nonwoven fabric to fabricate a novel crude oil adsorbent material. Wherein, the fluorine-free PDMS was used to hydrophobically modify the nonwoven fabric, endowing it with excellent oil-water separation performance, with a separation efficiency of up to 95%. After 10 cycles, the separation efficiency of PPy/PDMS modified nonwoven fabric (PPy/PDMS@NF) was still above 90%, demonstrating superior recyclability. In addition, the PPy/PDMS@NF possessed the self-cleaning capabilities. Under one sun illumination (1.0 kW/m2), the surface temperature of the PPy/PDMS@NF reached to 60.7 ℃, and its adsorption capacity for high-viscosity crude oil reached to 7 gcrude oil/gsorbent. Thanks to its environmental friendliness and excellent adsorption capacity, this work provides a new option for dealing with the high-viscosity marine oil spill.
28 Sep 2024Submitted to Chinese Journal of Chemistry
29 Sep 2024Submission Checks Completed
29 Sep 2024Assigned to Editor
29 Sep 2024Review(s) Completed, Editorial Evaluation Pending
30 Sep 2024Reviewer(s) Assigned
22 Oct 2024Editorial Decision: Revise Minor
15 Nov 20241st Revision Received
18 Nov 2024Submission Checks Completed
18 Nov 2024Assigned to Editor
18 Nov 2024Review(s) Completed, Editorial Evaluation Pending
18 Nov 2024Reviewer(s) Assigned
25 Nov 2024Editorial Decision: Accept