Reusable reduced graphene oxide based double-layer system modified by polyethylenimine for solar steam generation

Wang, Gang; Fu, Yang; Ma, Xiaofei; Pi, Wenbo; Liu, Dengwu; Wang, Xianbao

doi:10.1016/j.carbon.2016.11.071

Cited by 210 publications

(116 citation statements)

References 38 publications

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“…Later on, they also used graphene oxide-cellulose ester membranes by introducing polyethylenimine as a crosslinking agent, (Figure 12d,e). The double-layer of graphene oxide-cellulose ester system showed high steam evaporation efficiency up to 52% under 1 kW m −2 of solar irradiance [107]. [107].…”

Section: Organic-inorganic Nanocomposite Based Floating Solar Receiversmentioning

confidence: 99%

“…The double-layer of graphene oxide-cellulose ester system showed high steam evaporation efficiency up to 52% under 1 kW m −2 of solar irradiance [107]. [107].…”

Section: Organic-inorganic Nanocomposite Based Floating Solar Receiversmentioning

confidence: 99%

“…Inspired by the water transpiration behavior in trees through xylem from roots to the leaves surface, carbon nanotube coated balsa wood [111], flame coated wood [112], and graphene oxide coated wood [113], demonstrated an efficiency of 81, 72, and 83% at solar irradiance of 10, 1, and 12 kW m −2 , respectively. Thermal conductivities of [107].…”

Section: Bio-composites Based Floating Solar Receiversmentioning

confidence: 99%

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Novel Receiver-Enhanced Solar Vapor Generation: Review and Perspectives

Raza

Alzaim

et al. 2018

Energies

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Efficient solar vapor/steam generation is important for various applications ranging from power generation, cooling, desalination systems to compact and portable devices like drinking water purification and sterilization units. However, conventional solar steam generation techniques usually rely on costly and cumbersome optical concentration systems and have relatively low efficiency due to bulk heating of the entire liquid volume. Recently, by incorporating novel light harvesting receivers, a new class of solar steam generation systems has emerged with high vapor generation efficiency. They are categorized in two research streams: volumetric and floating solar receivers. In this paper, we review the basic principles of these solar receivers, the mechanism involving from light absorption to the vapor generation, and the associated challenges. We also highlight the two routes to produce high temperature steam using optical and thermal concentration. Finally, we propose a scalable approach to efficiently harvest solar energy using a semi-spectrally selective absorber with near-perfect visible light absorption and low thermal emittance. Our proposed approach represents a new development in thermally concentrated solar distillation systems, which is also cost-effective and easy to fabricate for rapid industrial deployment.

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Section: Organic-inorganic Nanocomposite Based Floating Solar Receiversmentioning

confidence: 99%

“…The double-layer of graphene oxide-cellulose ester system showed high steam evaporation efficiency up to 52% under 1 kW m −2 of solar irradiance [107]. [107].…”

Section: Organic-inorganic Nanocomposite Based Floating Solar Receiversmentioning

confidence: 99%

Section: Bio-composites Based Floating Solar Receiversmentioning

confidence: 99%

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Novel Receiver-Enhanced Solar Vapor Generation: Review and Perspectives

Raza

Alzaim

et al. 2018

Energies

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“…As a transition from nanofluids to solid PTC materials, Wang et al utilized a self‐assembly process to create a free‐floating film of gold nanoparticles at the air–water interface that could pump the liquid to the open surface during liquid evaporation through capillary flow. Whereafter, Au‐dominated plasmonic metal and carbon solid PTC materials were widely researched for solar water evaporation . Most of them are double layer structured (DLS) composite materials consisting of a PTC layer and a functional layer with the properties of porosity, adiabaticity, and free‐floating to allow heat localization and continuous water supplement.…”

Section: Introductionmentioning

confidence: 99%

“…Ghasemi et al reported a DLS carbon material consisting of both the bottom carbon foam for heat insulation and liquid supply and the top exfoliated graphite layer for heating and evaporating water. Wang et al developed a DLS material consisting of the top‐reduced graphene oxide sheets and the bottom MCE membrane. In order to simplify the structure and composition of PTC materials, Ito et al developed a multifunctional 3D porous graphene material that solved the problem of 2D flat feature and hydrophobic nature of graphene as the sole component for vapor generation.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Photo‐Thermal Conversion Properties of Hierarchical Titanium Nitride Nanotube Mesh for Solar Water Evaporation

Ren

Yang

2018

Solar RRL

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Hierarchical TiN nanotube mesh (HTNM) is prepared by calcining TiO2 nanotube mesh (TONM) in NH3 flow where the TONM is fabricated by electrochemical anodic oxidation of Ti mesh. Calcining temperature affects not only phase composition but also morphology of the HTNM, which further affects its optical absorption and solar water evaporation conversion efficiency (η). The η can reach to 85.36% under 2.5 kW m−2 simulated solar irradiation because HTNM efficiently utilizes solar light. Moreover, it can be reutilized because of its stabilities of the phase composition and nanostructure during the measurements of solar water evaporation performance.

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Low Cost, Robust, Environmentally Friendly Geopolymer–Mesoporous Carbon Composites for Efficient Solar Powered Steam Generation

Liu

Zhao

et al. 2018

Adv Funct Materials

127

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High-efficiency, environment friendly, renewable energy-based methods of desalination represent attractive and potentially very powerful solutions to the long-standing problem of global water shortage. Many new laboratoryscale materials have been developed for photothermal desalination but the development of low-cost, easy-to-manufacture, and scalable materials and systems that can convert solar irradiation into exploitable thermal energy in this context is still a significant challenge. This paper presents work on a geopolymer-biomass mesoporous carbon composite (GBMCC) device with mesoporous and macroporous structures for harvesting solar energy, which is then used in a device to generate water vapor with high efficiency using negative pressure, wind-driven, steam generation. The GBMCC device gives water evaporation rates of 1.58 and 2.71 kg m −2 h −1 under 1 and 3 suns illumination, with the solar thermal conversion efficiency up to 84.95% and 67.6%, respectively. A remarkable, record high water vapor generation rate of 7.55 kg m −2 h −1 is achieved under 1 sun solar intensity at the wind speed of 3 m s −1 . This is a key step forward todays efficient, sustainable and economical production of clean water from seawater or common wastewater with free solar energy.

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Reusable reduced graphene oxide based double-layer system modified by polyethylenimine for solar steam generation

Cited by 210 publications

References 38 publications

Novel Receiver-Enhanced Solar Vapor Generation: Review and Perspectives

Novel Receiver-Enhanced Solar Vapor Generation: Review and Perspectives

Synthesis and Photo‐Thermal Conversion Properties of Hierarchical Titanium Nitride Nanotube Mesh for Solar Water Evaporation

Low Cost, Robust, Environmentally Friendly Geopolymer–Mesoporous Carbon Composites for Efficient Solar Powered Steam Generation

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