Vertically aligned reduced graphene oxide/Ti3C2Tx MXene hybrid hydrogel for highly efficient solar steam generation

Li, Wei; Li, Xiaofeng; Wei, Chang; Wu, Jing; Liu, Pengfei; Wang, Jianjun; Yao, Xi; Yu, Zhong‐Zhen

doi:10.1007/s12274-020-2970-y

Cited by 174 publications

(99 citation statements)

References 69 publications

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“…Notably, these microchannels also transferred water molecules from the bottom to the top surface of aerogel by capillary action, thereby forming micro-zone water columns to promote water evaporation. [32,33] From the magnified SEM image of the bottom layer (Figure 1e), abundant wrinkled rGO-SA composites were observed, which may play a crucial role in increasing surface-specific area as well as providing more adsorption sites for contaminants. [34] The magnified SEM image of the upper layer (Figure 1c) depicted the uniform distribution of TiO 2 particles on the surface of wrinkled rGO-SA composites.…”

Section: Resultsmentioning

confidence: 99%

Bilayer rGO‐Based Photothermal Evaporator for Efficient Solar‐Driven Water Purification^[^]**

Dong

Wang

Song

et al. 2021

Chemistry A European J

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Interfacial evaporation has emerged as a promising approach to produce freshwater. However, an urgent concern is that, due to the illegal discharge of industrial wastewater, most water bodies are polluted by trace volatile organic compounds (VOCs), which are easily volatilized and enriched in the collected water during the interfacial evaporation process. Herein, a bilayer photothermal evaporator was reasonably designed for contaminated water purification. The bottom hydrophilic rGO-sodium alginate (SA) sheets purposefully disintegrate water transport channels, thus quickly removing VOCs through physical adsorption. The rGO-SA-TiO 2 upper layer sufficiently absorbs incident light and therefore persistently generates reactive oxidizing species to degrade upward VOCs. Notably, the oriented microchannels inside the evaporator allow sustained light reflections to improve the utilization of solar energy. The evaporation rate can reach 1.63 kg m À 2 h À 1 with a considerably high VOC removal efficiency of up to 96 %. Such an integrated bilayer evaporator provides an effective strategy to obtain clean water via solar distillation.

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Section: Resultsmentioning

confidence: 99%

Bilayer rGO‐Based Photothermal Evaporator for Efficient Solar‐Driven Water Purification^[^]**

Dong

Wang

Song

et al. 2021

Chemistry A European J

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“…The researchers have attempted to improve the EMI SE of polymer‐based composites to some extent with the same filler loading by surface functionalization of fillers or external induction, but the improvement effect is still limited and far lower than the expected 12– . Research shows that the construction of 3D conductive networks can realize the uniform dispersion of conductive fillers to effectively connect the conductive fillers to conduct electrons, and the abundant interfaces are conducive to further enhance the attenuation of electromagnetic waves, achieving remarkable EMI SE for polymer‐based composites with ultralow loading of conductive fillers 13–16 …”

Section: Introductionmentioning

confidence: 99%

“…12-Research shows that the construction of 3D conductive networks can realize the uniform dispersion of conductive fillers to effectively connect the conductive fillers to conduct electrons, and the abundant interfaces are conducive to further enhance the attenuation of electromagnetic waves, achieving remarkable EMI SE for polymer-based composites with ultralow loading of conductive fillers. [13][14][15][16] In this paper, the shielding mechanism and preparation methods of polymer-based EMI shielding materials in recent years, as well as the latest research progress in the field of EMI shielding are reviewed. The key scientific and technical problems that need to be solved in the field of polymer-based EMI shielding materials with 3D conductive networks are also proposed.…”

mentioning

confidence: 99%

Polymer‐based EMI shielding composites with 3D conductive networks: A mini‐review

Wang

Zhang

et al. 2021

SusMat

220

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High‐frequency electromagnetic waves and electronic products can bring great convenience to people's life, but lead to a series of electromagnetic interference (EMI) problems, such as great potential dangers to the normal operation of electronic components and human safety. Therefore, the research of EMI shielding materials has attracted extensive attention by the scholars. Among them, polymer‐based EMI shielding materials with light weight, high specific strength, and stable properties have become the current mainstream. The construction of 3D conductive networks has proved to be an effective method for the preparation of polymer‐based EMI shielding materials with excellent shielding effectiveness (SE). In this paper, the shielding mechanism of polymer‐based EMI shielding materials with 3D conductive networks is briefly introduced, with emphasis on the preparation methods and latest research progress of polymer‐based EMI shielding materials with different 3D conductive networks. The key scientific and technical problems to be solved in the field of polymer‐based EMI shielding materials are also put forward. Finally, the development trend and application prospects of polymer‐based EMI shielding materials are prospected.

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“…[ 5–8 ] Recently, much attention has been paid to economical, effective, and sustainable interfacial solar steam generation systems with solar energy absorbers for purification of seawater and wastewater. [ 9–21 ] Ingenious design of solar steam generation evaporators can remarkably contribute to the water generation efficiency and performances by accumulating heat and accelerating the upward transport of seawater or wastewater to the evaporation surfaces. Compared to conventional direct heating design, the interfacial solar heating system confines the heat onto the evaporator surface and prevents the heat loss to the bulk water.…”

Section: Introductionmentioning

confidence: 99%

2D Ferrous Ion‐Crosslinked Ti₃C₂T_x MXene Aerogel Evaporators for Efficient Solar Steam Generation

Zhao

et al. 2021

Advanced Sustainable Systems

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Although solar‐driven water evaporation technology is promising for desalination of seawater and purification of wastewater, it is still an issue to enhance the solar steam generation performances by efficient utilization of sustainable solar energy. Herein, 2D ferrous ion‐crosslinked Ti3C2Tx MXene‐based aerogel films (MAFs) are fabricated as efficient solar steam generation devices by vacuum‐assisted filtration of aqueous dispersions of MXene with FeCl2 followed by freeze‐drying. The strong interaction of ferrous ions with –OH groups of MXene sheets and the freeze‐drying process are crucial for constructing structurally stable porous films with rough surfaces. Benefiting from the strong solar light absorption capacity and high solar‐thermal energy conversion efficiency of MXene sheets, along with the hydrophilic and structurally stable porous architecture of MAFs, the average evaporation rates of an optimal MAF evaporator are as high as 1.67 and 14.52 kg m−2 h−1 with evaporation efficiencies of 94.3% and 91.7% under solar light irradiations of 1 and 10 kW m‐2, respectively. As a promising solar steam generation device, the 2D porous and hydrophilic MAF evaporator is highly efficient in generating clean water from both natural seawater and organic wastewater with satisfactory ion rejection efficiencies of close to 100%.

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Vertically aligned reduced graphene oxide/Ti3C2Tx MXene hybrid hydrogel for highly efficient solar steam generation

Cited by 174 publications

References 69 publications

Bilayer rGO‐Based Photothermal Evaporator for Efficient Solar‐Driven Water Purification^[^]**

Bilayer rGO‐Based Photothermal Evaporator for Efficient Solar‐Driven Water Purification^[^]**

Polymer‐based EMI shielding composites with 3D conductive networks: A mini‐review

2D Ferrous Ion‐Crosslinked Ti₃C₂T_x MXene Aerogel Evaporators for Efficient Solar Steam Generation

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Vertically aligned reduced graphene oxide/Ti3C2Tx MXene hybrid hydrogel for highly efficient solar steam generation

Cited by 174 publications

References 69 publications

Bilayer rGO‐Based Photothermal Evaporator for Efficient Solar‐Driven Water Purification[]**

Bilayer rGO‐Based Photothermal Evaporator for Efficient Solar‐Driven Water Purification[]**

Polymer‐based EMI shielding composites with 3D conductive networks: A mini‐review

2D Ferrous Ion‐Crosslinked Ti3C2Tx MXene Aerogel Evaporators for Efficient Solar Steam Generation

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Product

Resources

About

Bilayer rGO‐Based Photothermal Evaporator for Efficient Solar‐Driven Water Purification^[^]**

Bilayer rGO‐Based Photothermal Evaporator for Efficient Solar‐Driven Water Purification^[^]**

2D Ferrous Ion‐Crosslinked Ti₃C₂T_x MXene Aerogel Evaporators for Efficient Solar Steam Generation