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Magnetic Field Induced the Assembling of Photothermal Evaporator for Efficient Solar-driven Desalination
  • +4
  • Mingyu Zhou,
  • Peng Han,
  • Guicun Qi,
  • Dali Gao,
  • Hamdy Abdel-Ghafar,
  • Yuchao Wang,
  • Shengyang Tao
Mingyu Zhou
Dalian University of Technology
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Peng Han
Sinopec Beijing Research Institute of Chemical Industry
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Guicun Qi
Sinopec Beijing Research Institute of Chemical Industry
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Dali Gao
Sinopec Beijing Research Institute of Chemical Industry
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Hamdy Abdel-Ghafar
Central Metallurgical Research and Development Institute
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Yuchao Wang
Dalian University of Technology

Corresponding Author:wangyuchao@dlut.edu.cn

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Shengyang Tao
Dalian University of Technology
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Abstract

Solar-driven interfacial evaporation is a sustainable and economical technology for fresh water generation. Structural design of photothermal material is an effective strategy to improve the evaporation performance but usually bothered by complicated processes and non-adjustability. Herein, magnetic nanoparticles assembled photothermal evaporator was developed, which showed an adjustable spinal array surface under uniform magnetic field induction. By regulating position in the magnetic field, the desirable surface structures could be uniform at relatively low load density of magnetic nanoparticles to improve light absorption via multiple reflection. Magnetic field induced evaporator could accelerate evaporation to over 1.39 kg m-3 h-1 under 1-sun illumination, which was 2.8 times that of natural evaporation. After coated by carbon layer, magnetic nanoparticles could overcome the oxidation to realize stable evaporation in long-term desalination. The facile strategy to optimize the surface structure via magnetic field is appropriate for various fields with special requirements on surface structure.
06 May 2023Submitted to EcoMat
08 May 2023Submission Checks Completed
08 May 2023Assigned to Editor
08 May 2023Review(s) Completed, Editorial Evaluation Pending
17 May 2023Reviewer(s) Assigned
25 May 2023Editorial Decision: Revise Major
31 May 20231st Revision Received
01 Jun 2023Submission Checks Completed
01 Jun 2023Assigned to Editor
01 Jun 2023Review(s) Completed, Editorial Evaluation Pending
03 Jun 2023Reviewer(s) Assigned
06 Jun 2023Editorial Decision: Accept