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Interfacial Engineering of Attractive Pickering Emulsion Gel-Templated Porous Materials for Enhanced Solar Vapor Generation

Author

Listed:
  • Xiaoxiao Yan

    (College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
    These authors contribute equally to this work.)

  • Baiheng Wu

    (College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
    These authors contribute equally to this work.)

  • Qinglin Wu

    (College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
    Department of Medical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China)

  • Li Chen

    (College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
    Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
    Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China)

  • Fangfu Ye

    (Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
    Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
    Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou 325001, China)

  • Dong Chen

    (College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
    Department of Medical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China)

Abstract

Solar vapor generation is emerging as one of the most important sustainable techniques for harvesting clean water using abundant and green solar energy. The rational design of solar evaporators to realize high solar evaporation performances has become a great challenge. Here, a porous solar evaporator with integrative optimization of photothermal convention, water transport and thermal management is developed using attractive Pickering emulsions gels (APEG) as templated and followed by interfacial engineering on a molecular scale. The APEG-templated porous evaporators (APEG-TPEs) are intrinsically thermal insulation materials with a thermal conductivity = 0.039 W·m −1 ·K −1 . After hydrolysis, t -butyl groups on the inner-surface are transformed to carboxylic acid groups, making the inner-surface hydrophilic and facilitating water transport through the inter-connected pores. The introduction of polypyrrole layer endows the porous materials with a high light absorption of ~97%, which could effectively convert solar irradiation to heat. Due to the versatility of the APEG systems, the composition, compressive modulus, porosity of APEG-TPEs could be well controlled and a high solar evaporation efficiency of 69% with an evaporation rate of 1.1 kg·m −2 ·h −1 is achieved under simulated solar irradiation. The interface-engineered APEG-TPEs are promising in clean water harvesting and could inspire the future development of solar evaporators.

Suggested Citation

  • Xiaoxiao Yan & Baiheng Wu & Qinglin Wu & Li Chen & Fangfu Ye & Dong Chen, 2021. "Interfacial Engineering of Attractive Pickering Emulsion Gel-Templated Porous Materials for Enhanced Solar Vapor Generation," Energies, MDPI, vol. 14(19), pages 1-12, September.
  • Handle: RePEc:gam:jeners:v:14:y:2021:i:19:p:6077-:d:641995
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    References listed on IDEAS

    as
    1. Mirmanto & I Made Adi Sayoga & Agung Tri Wijayanta & Agus Pulung Sasmito & Muhammad Aziz, 2021. "Enhancement of Continuous-Feed Low-Cost Solar Distiller: Effects of Various Fin Designs," Energies, MDPI, vol. 14(16), pages 1-15, August.
    2. Lei Wu & Zhichao Dong & Zheren Cai & Turga Ganapathy & Niocholas X. Fang & Chuxin Li & Cunlong Yu & Yu Zhang & Yanlin Song, 2020. "Highly efficient three-dimensional solar evaporator for high salinity desalination by localized crystallization," Nature Communications, Nature, vol. 11(1), pages 1-12, December.
    3. Jahan Zeb Alvi & Yongqiang Feng & Qian Wang & Muhammad Imran & Lehar Asip Khan & Gang Pei, 2020. "Effect of Phase Change Material Storage on the Dynamic Performance of a Direct Vapor Generation Solar Organic Rankine Cycle System," Energies, MDPI, vol. 13(22), pages 1-19, November.
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