Designing Carbonized Loofah Sponge Architectures with Plasmonic Cu Nanoparticles Encapsulated in Graphitic Layers for Highly Efficient Solar Vapor Generation

Ren, Liteng; Yi, Xinli; Yang, Zhongshan; Wang, Defa; Liu, Lequan; Ye, Jinhua

doi:10.1021/acs.nanolett.0c04511

Cited by 92 publications

(55 citation statements)

References 46 publications

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“…All tests were under 1 solar irradiation evaporator with that of PPy-based materials, 27,51,52 carbonized-based biomass materials, 28,[53][54][55] and plasma metal nanoparticle-based materials evaporators. 56,57 Figure 5D shows the highest evaporation rate among these evaporators, indicating that this work successfully prepared a PPy-wax gourd evaporator with excellent water evaporation performance. In addition, we have also compared with some evaporators made of other materials (Table S1).…”

Section: Resultsmentioning

confidence: 81%

A simple, flexible, and porous polypyrrole‐wax gourd evaporator with excellent light absorption for efficient solar steam generation

Han

et al. 2021

Intl J of Energy Research

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Solar interfacial water evaporation is considered as a potential green technology to solve the global shortage of freshwater resources. However, it is still an arduous task to develop a low-cost and efficient solar evaporator with a simple preparation method. Herein, a simple, flexible, and porous polypyrrole-wax gourd (PPy-wax gourd) biomass evaporator was reported for solar evaporation enhancement. Wax gourd had the advantages such as superhydrophilic wettability, massive microporous channels, and easy planting. PPy was a kind of black polymer with excellent light absorption ability, which greatly improved the light absorption of the PPy-wax gourd evaporator within a full spectrum of solar irradiance (300-2500 nm). The PPy-wax gourd evaporator prepared by

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Section: Resultsmentioning

confidence: 81%

A simple, flexible, and porous polypyrrole‐wax gourd evaporator with excellent light absorption for efficient solar steam generation

Han

et al. 2021

Intl J of Energy Research

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“…Figure 5G displayed the evaporation rate of AgNPs‐PDA‐wax gourd evaporator compared with else photothermal conversion evaporators (including hydrogels, carbonized materials, polymer biomass materials, etc. ), 24,28,36,41,48‐52 the prepared AgNPs‐PDA‐wax gourd evaporator showed the evaporation rate comparable to or even more than those evaporators owing to synergic light‐to‐heat conversion capability between the LSPR from AgNPs and enhanced light‐adsorption ability from PDA. As shown in Figure 5H, when the incident light frequency matches the whole vibration frequency of AgNPs in the composite evaporator, the resonance effect will be generated.…”

Section: Resultsmentioning

confidence: 94%

Silver nanoparticles‐polydopamine‐wax gourd: An antimicrobial solar evaporator with enhanced steam generation

Fan

et al. 2022

Intl J of Energy Research

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Solar-driven interfacial evaporation is an emerging environmentally-friendly technology to produce freshwater, but the current interface evaporators are restricted by their high cost, complex fabrication processes, and low resistance to environmental conditions. Here, a low-cost and high-efficient evaporator was prepared simply by modifying natural wax gourd with polydopamine (PDA) and silver nanoparticles (AgNPs). The prepared AgNPs-PDA-wax gourd exhibited excellent light absorption (>94%) in the whole solar spectrum (300-2500 nm). Under 1 sun illumination, the prepared evaporator achieved an extraordinary evaporation rate of 1.70 kg m À2 h À1 (efficiency of 83.21%), which was 3.78 and 1.21 times higher than the rates of natural wax gourd and PDA-wax gourd, respectively. Such excellent performance was mainly attributed to the synergic light-to-heat conversion capability between localized surface plasmon resonance effect from AgNPs and enhanced light-adsorption ability from PDA. Due to the presence of AgNPs, the final evaporator also displayed a fascinating antibacterial behavior for both E. coli and S. aureus even during evaporating actual lake water. Meanwhile, the AgNPs-PDA-wax gourd presented good durability during 10-cycled experiments, seawater desalination, dye water purification and some extreme conditions (acid, alkaline and freezing). These results suggested the great potential for future practical applications of such biomass solar evaporators.

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“…To accurately evaluate the solar energy conversion efficiency of N,S‐GO and N,S‐GO/PPy foams, we measured the evaporation rates by recording the weight change of the evaporated water as a function of time under 1 sun irradiation (1 kW m −2 ), as shown in Figure . Note that all measured evaporation rates in our work subtracted the evaporation rate under dark field [ 20 ] (natural evaporation, Figure S4, Supporting Information). It is obvious that the water evaporation enabled by N,S‐GO and N,S‐GO/PPy foams are much larger than that of water in the dark.…”

Section: Resultsmentioning

confidence: 99%

Polypyrrole‐Reinforced N,S‐Doping Graphene Foam for Efficient Solar Purification of Wastewater

Ning

et al. 2021

Solar RRL

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Solar vapor generation is a sustainable and cost‐effective approach to addressing the issue of water shortage. However, the challenges of solar steam generation still exist for achieving a high evaporation efficiency combined with long‐term stability in the wastewater containing heavy metal ions and wide degrees of acidity and alkalinity (pH = 1–14). Herein, polypyrrole (PPy) loading on the N,S‐doped graphene oxide (N,S‐GO) foam is used for high‐efficiency solar evaporation of treating wastewater. With the advantages of excellent broadband solar absorption ( >97%), extremely low emissivity (0.70), and outstanding hydrophilicity, the N,S‐GO/PPy foam achieves a high evaporation efficiency of 90.5% under 1 sun illumination. More notably, the N,S‐GO/PPy foam has strong adsorption of heavy metal ions (Fe3+, Cu2+, and Cr6+) for treating wastewater synchronously evaporates at higher efficiencies of 94.7–98.4%. Interestingly, the high‐toxicity Cr6+ can be reduced to low‐toxicity Cr3+ effectively by the synergistic effect of N,S‐GO and PPy. In addition, the N,S‐GO foam shows a better long‐term resistance of acidity and alkalinity for 45 days. A new insight is offered into high‐efficiency solar evaporation for treating wastewater and water purification.

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Designing Carbonized Loofah Sponge Architectures with Plasmonic Cu Nanoparticles Encapsulated in Graphitic Layers for Highly Efficient Solar Vapor Generation

Cited by 92 publications

References 46 publications

A simple, flexible, and porous polypyrrole‐wax gourd evaporator with excellent light absorption for efficient solar steam generation

A simple, flexible, and porous polypyrrole‐wax gourd evaporator with excellent light absorption for efficient solar steam generation

Silver nanoparticles‐polydopamine‐wax gourd: An antimicrobial solar evaporator with enhanced steam generation

Polypyrrole‐Reinforced N,S‐Doping Graphene Foam for Efficient Solar Purification of Wastewater

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