3D self-assembly of aluminium nanoparticles for plasmon-enhanced solar desalination
3D self-assembly of aluminium nanoparticles for plasmon-enhanced solar desalination
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DOI：
10.1038/nphoton.2016.75
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发表时间：
2016-06-01
期刊：
影响因子：
35
通讯作者：
Zhu, Jia
中科院分区：
文献类型：
--
作者：
Zhou, Lin;Tan, Yingling;Zhu, Jia
等离子体激元技术已经产生了巨大的兴奋，因为它独特的能力，将光聚焦到亚波长体积（1），有利于各种应用，如光收集（2，3），光电探测（4），传感（5），催化（6）等。在这里，我们展示了一个等离子体增强的太阳能脱盐设备，通过铝纳米粒子自组装成三维多孔膜制造。所形成的多孔等离子体吸收体可以自然地漂浮在水面上，有效地吸收宽太阳光谱（>96%），并将吸收的能量聚焦在水面上，以实现高效（类似于90%）和有效的脱盐（减少四个数量级）。还检查了装置的耐久性，表明在各种照明条件下超过25个循环的稳定性能。显着的脱盐效果，材料的丰富性和低成本，以及可扩展的生产工艺的组合表明，这种类型的等离子体增强的太阳能脱盐装置可以提供便携式脱盐解决方案。
Plasmonics has generated tremendous excitement because of its unique capability to focus light into subwavelength volumes(1), beneficial for various applications such as light harvesting(2,3), photodetection(4), sensing(5), catalysis(6) and so on. Here we demonstrate a plasmon-enhanced solar desalination device, fabricated by the self-assembly of aluminium nanoparticles into a three-dimensional porous membrane. The formed porous plasmonic absorber can float naturally on water surface, efficiently absorb a broad solar spectrum (>96%) and focus the absorbed energy at the surface of the water to enable efficient (similar to 90%) and effective desalination (a decrease of four orders of magnitude). The durability of the devices has also been examined, indicating a stable performance over 25 cycles under various illumination conditions. The combination of the significant desalination effect, the abundance and low cost of the materials, and the scalable production processes suggest that this type of plasmon-enhanced solar desalination device could provide a portable desalination solution.