Poly(ionic liquid)-crosslinked graphene oxide/carbon nanotube membranes as efficient solar steam generators

Han, Jiang-Jin; Dong, Zhiyue; Líu, Hao; Gong, Jiang; Zhao, Qiang

doi:10.1016/j.gee.2021.03.010

Cited by 44 publications

(22 citation statements)

References 57 publications

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“…As promising solar absorbers, carbon materials have recently attracted great interest owing to their low cost, excellent light absorption, high photo-thermal conversion efficiency, and chemical stability [10,[26][27][28][29][30][31]. However, traditional carbon materials are often intrinsically fragile, especially in powder state.…”

Section: Introductionmentioning

confidence: 99%

High-performance salt-resistant solar interfacial evaporation by flexible robust porous carbon/pulp fiber membrane

et al. 2021

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Solar evaporation has emerged as an attractive technology to produce freshwater by utilizing renewable solar energy. However, it remains a huge challenge to develop efficient solar steam generators with good flexibility, low cost and remarkable salt resistance. Herein, we prepare flexible, robust solar membranes by filtration of porous carbon and commercial paper pulp fiber. The porous carbon with well-defined structures is prepared through controlled carbonization of biomass/waste plastics by eutectic salts. We prove the synergistic effect of porous carbon and paper pulp fiber in boosting solar evaporation performance. Firstly, the porous carbon displays a high light absorption, while the paper pulp fiber with good hydrophilicity effectively promotes the transport of water. Secondly, the combination between porous carbon and paper pulp fiber reduces the water vaporization enthalpy by 20%, which is important to significantly improve the evaporation performance. As a proof of concept, the porous carbon/paper pulp fiber membrane possesses a high evaporation rate of 1.8 kg m −2 h −1 under 1 kW m −2 irradiation. Thirdly, the good flexibility and mechanical property of paper pulp fiber enable the solar membrane to work well under extreme conditions (e.g., after 20 cycles of folding/stretching/ recovery). Lastly, due to the super-hydrophilicity and superwetting, the hybrid membrane exhibits the exceptional salt resistance and long-term stability in continuous seawater desalination, e.g., for 50 h. Importantly, a large-scale solar desalination device for outdoor experiments is developed to produce freshwater. Consequently, this work provides a new insight into developing advanced flexible solar evaporators with superb performance in seawater desalination.

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Section: Introductionmentioning

confidence: 99%

High-performance salt-resistant solar interfacial evaporation by flexible robust porous carbon/pulp fiber membrane

et al. 2021

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“…To gain a deeper insight into the nature of the PG-EDA aggregate–surfactant interactions in the assemblies, we further analyzed the number of hydrogen bonds between the dominant interactions by means of all-atom molecular dynamics (AA-MD) simulations. , The structural units of PG-EDA aggregates are formed from the Michael addition and Schiff base reactions of polyphenol and EDA . Thus, dimer A was chosen as a model structure (Figure S28) of PG-EDA aggregates.…”

Section: Resultsmentioning

confidence: 99%

Tunable Hierarchically Structured Meso-Macroporous Carbon Spheres from a Solvent-Mediated Polymerization-Induced Self-Assembly

Liu

Sheng

et al. 2023

J. Am. Chem. Soc.

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Herein, we report a versatile solvent-mediated polymerization-induced self-assembly (PISA) strategy to directly synthesize highly N-doped hierarchically porous structured carbon spheres with a tunable meso-macroporous configuration. The introduction of intermolecular hydrogen bonds is verified to enhance the interfacial interactions between block copolymers, oil droplets, and polyphenols. Moreover, the dominant hydrogen-bond-driven interactions can be systematically manipulated by selecting different cosolvent systems to generate diverse porous structures from the transformation of micellar and precursor co-assembly. Impressively, hierarchically structured meso-macroporous N-doped carbon spheres present simultaneously tunable sphere sizes and mesopores and macropores, ranging from 1.2 μm, 9/50 and 227 nm to 1.0 μm, 40, and 183 nm and 480, 24, and 95 nm. As a demonstration, dendritic-like N-doped hierarchically meso-macroporous carbon spheres manifest excellent enzyme-like activity, which is attributed to the continuous mass transport from the multiordered porosity. The current study provides a new platform for the synthesis of novel well-defined porous materials.

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“…The water evaporation of MC0 within 1 h is 248 mg, much higher than that of pure water (154 mg), likely due to the hydrogen bonding between oxygen‐containing functional groups and water molecules. [ 5,51 ] Similarly, the water mass losses of MC5 (241 mg), MC10 (235 mg), and MC30 (220 mg) still exceed that of pure water, implying the lower water evaporation enthalpy in MC x (Figure 5d). Based on the above results, the evaporation enthalpy of MC10 is calculated as 1.58 kJ kg −1 , 65% that of original water (2.42 kJ kg −1 ), and slightly exceeding that of pristine cotton cloth (1.50 kJ kg −1 ).…”

Section: Resultsmentioning

confidence: 99%

Simultaneous Solar‐driven Steam and Electricity Generation by Cost‐effective, Easy Scale‐up MnO₂‐based Flexible Membranes

Ren

Ding

Gong

et al. 2022

Energy & Environ Materials

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Harvesting solar energy in an effective manner for steam and electricity generation is a promising technique to simultaneously cope with the energy and water crises. However, the construction of efficient and easy scale‐up photothermal materials for steam and electricity cogeneration remains challenging. Herein, we report a facile and cost‐effective strategy to prepare MnO2‐decorated cotton cloth (MCx). The wide adsorption spectrum and excellent photothermal conversion ability of the in situ‐formed MnO2 nanoparticles make the MCx to be advanced photothermal materials. Consequently, the hybrid device integrated with MCx as the photothermal layer and the thermoelectric (TE) module for electricity power conversion exhibits an extremely high evaporation rate of 2.24 kg m−2 h−1 under 1 kW m−2 irradiation, which is ranked among the most powerful solar evaporators. More importantly, during solar evaporation, the hybrid device produces an open‐circuit voltage of 0.3 V and a power output of 1.6 W m−2 under 3 Sun irradiation, and outperforms most of the previously reported solar‐driven electricity generation devices. Therefore, the integrated device with synergistic solar‐thermal utilization opens up a green way toward simultaneous solar vapor and electric power generation in remote and resource‐constrained areas.

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Poly(ionic liquid)-crosslinked graphene oxide/carbon nanotube membranes as efficient solar steam generators

Cited by 44 publications

References 57 publications

High-performance salt-resistant solar interfacial evaporation by flexible robust porous carbon/pulp fiber membrane

High-performance salt-resistant solar interfacial evaporation by flexible robust porous carbon/pulp fiber membrane

Tunable Hierarchically Structured Meso-Macroporous Carbon Spheres from a Solvent-Mediated Polymerization-Induced Self-Assembly

Simultaneous Solar‐driven Steam and Electricity Generation by Cost‐effective, Easy Scale‐up MnO₂‐based Flexible Membranes

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Poly(ionic liquid)-crosslinked graphene oxide/carbon nanotube membranes as efficient solar steam generators

Cited by 44 publications

References 57 publications

High-performance salt-resistant solar interfacial evaporation by flexible robust porous carbon/pulp fiber membrane

High-performance salt-resistant solar interfacial evaporation by flexible robust porous carbon/pulp fiber membrane

Tunable Hierarchically Structured Meso-Macroporous Carbon Spheres from a Solvent-Mediated Polymerization-Induced Self-Assembly

Simultaneous Solar‐driven Steam and Electricity Generation by Cost‐effective, Easy Scale‐up MnO2‐based Flexible Membranes

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Simultaneous Solar‐driven Steam and Electricity Generation by Cost‐effective, Easy Scale‐up MnO₂‐based Flexible Membranes