Resonant energy transfer enhances solar thermal desalination

Alabastri, Alessandro; Dongare, Pratiksha D.; Neumann, Oara; Metz, Jordin; Adebiyi, Ifeoluwa Mary; Nordlander, Peter; Halas, Naomi J.

doi:10.1039/c9ee03256h

Cited by 39 publications

(26 citation statements)

References 36 publications

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“…The hydrophobic nature of the nonwoven fibers hinders water absorption from bulk seawater and transportation within the device, resulting in a low evaporation rate. This can be improved by the addition of superhydrophilic structures and sol–gel polymers for enhancing the water absorption and transportation. , Further enhancement of the thermal transfer within the masks can also help improve the desalination rates. , There are also some defects observed at the edge of the folded region, and this can be overcome in real production conditions by having the laser deposition processes prior to the folding processes of the nonwoven fibers. At the same time, the virus filtration properties of these graphene-coated masks are highly dependent on the pristine surgical masks.…”

Section: Resultsmentioning

confidence: 99%

Reusable and Recyclable Graphene Masks with Outstanding Superhydrophobic and Photothermal Performances

et al. 2020

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The 2019 coronavirus outbreak (COVID-19) is affecting over 210 countries and territories, and it is spreading mainly by respiratory droplets. The use of disposable surgical masks is common for patients, doctors, and even the general public in highly risky areas. However, the current surgical masks cannot self-sterilize in order to reuse or be recycled for other applications. The resulting high economic and environmental costs are further damaging societies worldwide. Herein, we reported a unique method for functionalizing commercially available surgical masks with outstanding self-cleaning and photothermal properties. A dual-mode laser-induced forward transfer method was developed for depositing few-layer graphene onto low-melting temperature nonwoven masks. Superhydrophobic states were observed on the treated masks’ surfaces, which can cause the incoming aqueous droplets to bounce off. Under sunlight illumination, the surface temperature of the functional mask can quickly increase to over 80 °C, making the masks reusable after sunlight sterilization. In addition, this graphene-coated mask can be recycled directly for use in solar-driven desalination with outstanding salt-rejection performance for long-term use. These roll-to-roll production-line-compatible masks can provide us with better protection against this severe virus. The environment can also benefit from the direct recycling of these masks, which can be used for desalinating seawater.

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Section: Resultsmentioning

confidence: 99%

Reusable and Recyclable Graphene Masks with Outstanding Superhydrophobic and Photothermal Performances

et al. 2020

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“…Typical values for selective solar absorbers such as Pyromark 2500, 67 carbon black NPs, 66 and plasmonic metasurfaces 68 by ∼500% by applying this resonant heat-transfer mechanism. 70 Plasmonic metasurfaces, by acting as quasi-twodimensional (2D) heat dissipators, squeeze light-to-heat conversion into nanometer-sized layers and hold promise for enabling nanophotonics-driven ultrathin resonant thermochemical reactors. Another property of plasmonic particles that deserves attention for thermal applications is their fast thermalization dynamics.…”

Section: Thermal Effects In Plasmonic Systemsmentioning

confidence: 99%

“…In such systems, a thermal process can be described as a resonant phenomenon and enhanced at its resonant condition. Researchers have increased the efficiency of thermal water distillation, an Arrhenius-like temperature-dependent process, by ∼500% by applying this resonant heat-transfer mechanism . Plasmonic metasurfaces, by acting as quasi-two-dimensional (2D) heat dissipators, squeeze light-to-heat conversion into nanometer-sized layers and hold promise for enabling nanophotonics-driven ultrathin resonant thermochemical reactors.…”

Section: Thermal Effects In Plasmonic Systemsmentioning

confidence: 99%

Challenges in Plasmonic Catalysis

et al. 2020

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The use of nanoplasmonics to control light and heat close to the thermodynamic limit enables exciting opportunities in the field of plasmonic catalysis. The decay of plasmonic excitations creates highly nonequilibrium distributions of hot carriers that can initiate or catalyze reactions through both thermal and nonthermal pathways. In this Perspective, we present the current understanding in the field of plasmonic catalysis, capturing vibrant debates in the literature, and discuss future avenues of exploration to overcome critical bottlenecks. Our Perspective spans first-principles theory and computation of correlated and far-from-equilibrium light-matter interactions, synthesis of new nanoplasmonic hybrids, and new steady-state and ultrafast spectroscopic probes of interactions in plasmonic catalysis, recognizing the key contributions of each discipline in realizing the promise of plasmonic catalysis. We conclude with our vision for fundamental and technological advances in the field of plasmon-driven chemical reactions in the coming years.

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“…Comparison of the freshwater production performance of HUM-based solar-MD system with previously reported solar water desalination system without refrigeration or heat-recycling accessories. [4,6,7,9,10,15,16,28,[44][45][46][47][48][49] www.afm-journal.de www.advancedsciencenews.com…”

Section: Resultsmentioning

confidence: 99%

High‐Yield and Low‐Cost Solar Water Purification via Hydrogel‐Based Membrane Distillation

Wen

Zhao

et al. 2021

Adv Funct Materials

105

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As an eco‐friendly means, solar water purification has attracted substantial research interest regarding material design, system engineering, and energy management. However, the low water yield and relatively high cost essentially restrict its practical potential. Here, a hydrogel‐based ultrathin membrane (HUM) is developed to synergistically coordinate facilitated vapor transfer and environmental energy harvesting for solar‐driven membrane distillation. The evaporation front is directly exposed to an airflow, which fundamentally eliminates the temperature polarization induced energy consumption. As such, the humidity of the output flow is significantly increased, and thus the vapor collection ratio rises to over 80% to achieve a high water yield of 2.4 kg m–2 h–1 under one sun without any energy recycling and cooling accessories. The HUM with a raw material cost of $0.36 m–2 offers a competitive potential cost of freshwater production of about $0.3–1.0 m–3. This work demonstrates a promising membrane distillation strategy based on sustainable energy toward both decentralized water purification and large‐scale water treatment.

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Resonant energy transfer enhances solar thermal desalination

Abstract: Water production from solar thermal desalination is limited by the energy consumption of phase change. Resonant heat exchange between matched saline feed and purified distillate flow rates enables optimized recovery of vaporization energy.

Cited by 39 publications

References 36 publications

Reusable and Recyclable Graphene Masks with Outstanding Superhydrophobic and Photothermal Performances

Reusable and Recyclable Graphene Masks with Outstanding Superhydrophobic and Photothermal Performances

Challenges in Plasmonic Catalysis

High‐Yield and Low‐Cost Solar Water Purification via Hydrogel‐Based Membrane Distillation

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