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Two-Dimensional Flexible Bilayer Janus Membrane for Advanced Photothermal Water Desalination
ACS Energy Letters ( IF 19.3 ) Pub Date : 2018-04-20 00:00:00 , DOI: 10.1021/acsenergylett.8b00433 Yanbing Yang 1, 2 , Xiangdong Yang 1 , Linna Fu 1 , Mingchu Zou 3 , Anyuan Cao 3 , Yaping Du 4 , Quan Yuan 1 , Chun-Hua Yan 4, 5
ACS Energy Letters ( IF 19.3 ) Pub Date : 2018-04-20 00:00:00 , DOI: 10.1021/acsenergylett.8b00433 Yanbing Yang 1, 2 , Xiangdong Yang 1 , Linna Fu 1 , Mingchu Zou 3 , Anyuan Cao 3 , Yaping Du 4 , Quan Yuan 1 , Chun-Hua Yan 4, 5
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Solar water evaporation is thought to be a promising solution to address the issues of global water scarcity. However, it is particularly difficult to achieve an idealized photothermal conversion membrane with all of the required structure characteristics such as wide spectrum absorption, ultrathin and porous, low thermal conductivity, and ease to scale up, thus leading to reduced water evaporation efficiency. Here, we designed a large-area bilayer Janus film by assembling gold nanorod (AuNR) onto the interconnected single-walled carbon nanotube (SWNT) porous film. The combined characteristics of high solar spectrum absorption, enhanced photothermal performance, thermal insulating feature, interconnected porous structure, and excellent mechanical performance enable the bilayer Janus film with a nearly 94% water evaporation efficiency under 5 kW m–2 solar irradiation and stable water generation capability during long-term illumination cycles as a water desalination membrane. Construction of the bilayer Janus film represents an effective strategy for developing multifunctional membranes for advanced desalination applications.
中文翻译：
用于高级光热水脱盐的二维柔性双层Janus膜
太阳能蒸发被认为是解决全球水资源短缺问题的有前途的解决方案。然而，特别难于获得具有所有所需的结构特征，例如宽光谱吸收，超薄和多孔，低导热率且易于放大的理想化的光热转化膜，从而导致水蒸发效率降低。在这里，我们通过将金纳米棒（AuNR）组装到互连的单壁碳纳米管（SWNT）多孔膜上来设计大面积双层Janus膜。高吸收太阳光谱，增强的光热性能，隔热特性，互连的多孔结构以及出色的机械性能等综合特征使双层Janus薄膜在5 kW m下的水蒸发效率达到近94％–2太阳辐照和在长期照明周期中稳定的水生成能力，可作为海水淡化膜。双层Janus膜的构建代表了开发用于高级淡化应用的多功能膜的有效策略。
更新日期：2018-04-20
中文翻译：
用于高级光热水脱盐的二维柔性双层Janus膜
太阳能蒸发被认为是解决全球水资源短缺问题的有前途的解决方案。然而，特别难于获得具有所有所需的结构特征，例如宽光谱吸收，超薄和多孔，低导热率且易于放大的理想化的光热转化膜，从而导致水蒸发效率降低。在这里，我们通过将金纳米棒（AuNR）组装到互连的单壁碳纳米管（SWNT）多孔膜上来设计大面积双层Janus膜。高吸收太阳光谱，增强的光热性能，隔热特性，互连的多孔结构以及出色的机械性能等综合特征使双层Janus薄膜在5 kW m下的水蒸发效率达到近94％–2太阳辐照和在长期照明周期中稳定的水生成能力，可作为海水淡化膜。双层Janus膜的构建代表了开发用于高级淡化应用的多功能膜的有效策略。
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