Reduced Graphene Oxide Modified Melamine Sponges Filling with Paraffin for Efficient Solar-Thermal Conversion and Heat Management

2021 ◽  
Author(s):  
Lu-Yue Liu ◽  
Zhuang Liu ◽  
Han-Yu Peng ◽  
Xiao-Ting Mu ◽  
Qian Zhao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Thermal Conversion ◽  
Solar Thermal ◽  
Heat Management ◽  
Reduced Graphene

scholarly journals Free-standing reduced graphene oxide (rGO) membrane for salt-rejecting solar desalination via size effect

Nanophotonics ◽  
2020 ◽  
Vol 9 (15) ◽  
pp. 4601-4608 ◽  
Author(s):  
Pengyu Zhuang ◽  
Hanyu Fu ◽  
Ning Xu ◽  
Bo Li ◽  
Jun Xu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Conversion Efficiency ◽  
High Salinity ◽  
Interlayer Spacing ◽  
Structural Instability ◽  
Solar Thermal ◽  
Free Standing ◽  
Solar Desalination ◽  
Reduced Graphene

AbstractInterfacial solar vapor generation has revived the solar-thermal-based desalination due to its high conversion efficiency of solar energy. However, most solar evaporators reported so far suffer from severe salt-clogging problems during solar desalination, leading to performance degradation and structural instability. Here, we demonstrate a free-standing salt-rejecting reduced graphene oxide (rGO) membrane serving as an efficient, stable, and antisalt-fouling solar evaporator. The evaporation rate of the membrane reaches up to 1.27 kg m−2 h−1 (solar–thermal conversion efficiency ∼79%) under one sun, out of 3.5 wt% brine. More strikingly, due to the tailored narrow interlayer spacing, the rGO membrane can effectively reject ions, preventing salt accumulation even for high salinity brine (∼8 wt% concentration). With enabled salt-antifouling capability, flexibility, as well as stability, our rGO membrane serves as a promising solar evaporator for high salinity brine treatment.

scholarly journals Ethylene glycol-based solar-thermal fluids dispersed with reduced graphene oxide

RSC Advances ◽  
2019 ◽  
Vol 9 (18) ◽  
pp. 10282-10288 ◽  
Author(s):  
Lei Shu ◽  
Jingyi Zhang ◽  
Benwei Fu ◽  
Jiale Xu ◽  
Peng Tao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Ethylene Glycol ◽  
Reduced Graphene Oxide ◽  
Thermal Energy ◽  
Solar Thermal ◽  
Direct Absorption ◽  
Solar Thermal Energy ◽  
Medium Temperature ◽  
Thermal Fluids ◽  
Reduced Graphene

Ethylene glycol nanofluids uniformly dispersed with reduced graphene oxide were prepared for medium-temperature direct absorption-based solar-thermal energy harvesting.

Rational design of reduced graphene oxide film for solar thermal desalination

2019 ◽  
Vol 19 (6) ◽  
pp. 1704-1710
Author(s):  
Yuan Meng ◽  
Haibo Li
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Rational Design ◽  
Evaporation Rate ◽  
Pure Water ◽  
Cost Effective ◽  
Solar Thermal ◽  
Water Evaporation ◽  
Reduced Graphene ◽  
Thermal Desalination

Abstract Solar water evaporation assisted by photothermal membranes is considered to be one of the sustainable and cost-effective strategies for pure water generation and wastewater treatment. In this work, a self-assembled reduced graphene oxide (rGO) film has been prepared and proposed for direct solar thermal desalination. The morphology, structure, absorbance and desalination performance of the rGO film are explored. It is found that rGO film with optimized microstructure delivers an evaporation rate of 0.87 kg m−2 h−1 with solar thermal conversion efficiency of 46% under 1 sun illumination. Moreover, the evaporation rate of rGO film remains at 0.86 kg/m2·h−1 after ten times recycling, demonstrating the superior reusability.

Highly Conductive and Transparent Reduced Graphene Oxide Nanoscale Films via Thermal Conversion of Polymer-Encapsulated Graphene Oxide Sheets

2018 ◽  
Vol 10 (4) ◽  
pp. 3975-3985 ◽  
Author(s):  
Mykhailo Savchak ◽  
Nikolay Borodinov ◽  
Ruslan Burtovyy ◽  
Mark Anayee ◽  
Kesong Hu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Thermal Conversion ◽  
Reduced Graphene ◽  
Nanoscale Films ◽  
Graphene Oxide Sheets

High Toughness Inorganic Solid Electrolytes via the Use of Reduced Graphene-Oxide

2020 ◽  
Author(s):  
Christos E. Athanasiou ◽  
Mok Yun Jin ◽  
Cristina Ramirez ◽  
Nitin P. Padture ◽  
Brian W. Sheldon
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Solid Electrolytes ◽  
High Toughness ◽  
Reduced Graphene
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