Plasmonic metal/doped-semiconductor nanocomposites for high-efficiency solar-driven clean water production
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 124637 |
Journal / Publication | Separation and Purification Technology |
Volume | 325 |
Online published | 22 Jul 2023 |
Publication status | Published - 15 Nov 2023 |
Link(s)
Abstract
Despite their strong light absorption capacity, the narrow absorption bandwidth of plasmonic metal materials has impeded their application in solar-driven freshwater production. To address this limitation, we grew copper sulfide (Cu7S4) shell on gold nanorod (Au NR) core to construct a plasmonic nanocomposite Au NR@Cu7S4, which exhibited broad and intense absorption of solar radiation due to the integration of their individually visible (Au NR) and near-infrared (Cu7S4) plasmons, with this absorption being further broadened and enhanced by the coupling of these two plasmons. This strategy is conceptually distinct from aggregating plasmonic metal nanoparticles, which is subject to a trade-off between the breadth and intensity of their absorption. The Au NR@Cu7S4-impregnated hydrogel delivered an evaporation rate of 2.35 kg m−2 h−1 under 1 sun illumination despite having a Au areal density of only 28 μg cm−2. Moreover, it showed excellent volatile organic compound removal performance. © 2023 Elsevier B.V.
Research Area(s)
- Broad light absorption, Plasmon coupling, Solar-driven freshwater production, Water purification
Citation Format(s)
Plasmonic metal/doped-semiconductor nanocomposites for high-efficiency solar-driven clean water production. / Chen, Yingxian; Mao, Zhengyi; Yin, Jianan et al.
In: Separation and Purification Technology, Vol. 325, 124637, 15.11.2023.
In: Separation and Purification Technology, Vol. 325, 124637, 15.11.2023.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review