The promising solar‐powered water purification based
Due to the fascinating properties, numerous graphene‐based materials were devoted to the solar‐powered system from interfacial solar‐steam generation, towards solar pollutants degradation
The promising solar-powered water purification based on graphene
solar-steam generation system has been developed, which greatly improved the solar-steam efficiency (energy needed to convert liquid water to water vapor divided by all input solar power) from about 24% to nearly 100% for single-stage evaporation.9 As shown in Figure 2A, the interfacial solar-steam generation system is to localize
Efficiency enhancement on the solar steam generation by wick
research topic recently. Besides solar desalination, solar steam generation technology also has many other applications, such as water purification[5, 6], power generation[7-9], oil recover [10, 11] and so on. To improve the solar steam generation efficiency, many works have been done during the past decades[12-17].
Graphene-Based New Power Generation Technology Created
Of great interest are the latest developments that use graphene as a material for power sources. Studies of graphene have shown that it has high mechanical strength, high thermal and electrical conductivity, which has already made it possible to start using it for various purposes, such as highly efficient heat-removing surfaces, batteries with improved
Graphene-based thermionic-thermoradiative solar cells: Concept
Solar energy conversion to electricity usually adopts two main methods: photovoltaic and solar-thermal power generation.Here, graphene-based thermionic-thermoradiative solar cells are expanded to include photovoltaics based on thermionic-thermoradiative converters, hybrid concept, efficiency limit, and optimum design.
Self-powered graphene-based composites for rain energy
Harnessing waste green energy utilizing advanced energy conversion technologies is widely considered a promising avenue for enhancing the power generation capacity of renewable energy. In this study, we present the experimental realization of a tailored energy conversion device using graphene-carbon black/polyvinyl chloride (G-CB/PVC)
Volumetric solar steam generation enhanced by reduced graphene
Solar steam generation is a typical method to achieve photo-thermal conversion and has a wide range of applications in water Wang et al. [40] obtained a high evaporation efficiency with carbon nanotube nanofluids in a direct solar steam generation experiment. Reduced graphene oxide (rGO) such as the solar power generation, this strategy
Graphene quantum dots as game-changers in solar cell
The recent pandemic, Coronavirus disease 2019 (COVID-19) had a catastrophic effect on human life; however, in terms of energy generation, there was a decrease in demand, but on the other hand, there was a reduction in greenhouse gas emissions and an increase in solar power generation due to increased sunlight absorption in solar panels .
An overview of graphene in energy production and
We present a review of the current literature concerning the electrochemical application of graphene in energy storage/generation devices, starting with its use as a super
Graphene-Based Photocatalysts for Solar Desalination
Applications of graphene in solar desalination are still in its infancy, but its prospects for the future are highly encouraging. Table 20.1 Methods used for solar desalination. The dual-function of the reported apparatus possesses the capability to serve as a means for both power generation and solar desalination. The device is capable
Galactomannan/graphene oxide/Fe3O4 hydrogel evaporator for solar
A key global issue for the sustainable development of human society is the growing shortage of water and electricity resources [1]. In remote and underdeveloped areas, power resources are even more limited; moreover, inadequate equipment for water production has led to an increase in the number of people suffering from water shortages and the spread
The era of water-enabled electricity generation from graphene
By the in-depth research of wind power, rain energy, and graphene respective power generation technologies and energy storage technologies, a integrated power generation system which consists of
The era of water-enabled electricity generation from
With the abundance of traditional energy conversion devices such as solar cells, fuel cells, lithium batteries and supercapacitors, the integration of graphene with water is an increasingly used method for
Enhancing perovskite solar cells with graphene-based
This method of generating graphene recombination induced substitutional doping of carbon atoms. Energy-dispersive X-ray spectroscopy, TEM, Raman spectroscopy, SEM, and XPS were all employed to demonstrate the presence of N-doped graphene. After being exposed to an N 2 environment for 30 days, graphene quantum dots-based perovskite
Transparent graphene electrodes might lead to new
Large sheets of transparent graphene that could be used for lightweight, flexible solar cells or electronics displays can now be created using a method developed at MIT. The technique involves a buffer layer of parylene
Interfacial solar‐driven steam and electricity co‐generation using
Water evaporation, one of the key steps in the natural water cycle, plays a ubiquitous role in a myriad of applications, such as evaporative cooling, 1, 2 paper industry, 3 power generation, 4 and seawater desalination. 5 Attributing to the shortage of freshwater resources and the crisis of traditional energy, sustainable and clean energy has become
Solar-thermal conversion and steam generation: a review
Solar energy is a green, stable and universal source of renewable energy, with wide spectrum and broad area characteristics [1] is regarded as being one of the renewable energy sources with the greatest potential to achieve sustained, high intensity energy output [1], [2].The conflict between population growth and water shortage has become one of the most
Solar-driven seawater desalination and electricity generation
Solar-driven interface evaporation for steam and electricity co-generation is expected to simultaneously solve the shortage of freshwater and energy. Although many different solar-driven evaporators have been developed, the simultaneously achieving freshwater-electricity cogeneration at a steadily high efficiency remains a challenge. In this work, an anisotropic
Graphene Platforms for Smart Energy Generation and Storage
Functionalization of graphene is another useful method to tune the properties of graphene In terms of smart power generation, graphene-based electric generators can reliably produce electricity in response to moisture, flowing liquid, friction, pressure force, and heat. Tailorable and wearable textile devices for solar energy harvesting
Flexible and portable graphene on carbon cloth as a power generator
Recently, the generation of power from interactions between graphene and gaseous water molecules in moisture has triggered great research interest that could provide a novel energy conversion
An overview of graphene in energy production and
Graphene has largely precluded this problem because methods of graphene synthesis that involve CVD [22], [34] generally use non-metallic catalysts, note however, in cases where graphene is synthesised in this manner, control experiments may still need to be performed [11], and as with CNTs the control of defects and reproducibility of fabrication are likely to be
Galactomannan/graphene oxide/Fe3O4 hydrogel evaporator for solar
Galactomannan/graphene oxide/Fe 3 O 4 hydrogel evaporator for solar water evaporation for desalination and water purification has the advantages of low cost and easy equipment and preparation methods. In practical applications, interfacial respectively, demonstrating its effectiveness for use in solar steam power generation along with
A Multifunctional tannic acid–Fe3+–graphene oxide loaded
power generator† M. Amarnath,a als graphene oxide (GO) comprises a 2D layer structure which consists of stacked hexagonally arranged carbon atoms and has been shown to have good photothermal properties.9 Tannic methods solar driven distillation is the most convenient and cost effective one. Photothermal assisted solar water
Application of Graphene-Related Materials
The conversion of solar power into electrical energy is a clean, scalable, and environmentally friendly means of energy production. Illustration of the top-down and bottom-up
Green conversion of waste polyester into few-layer graphene for
Herein, we report the salt-assisted carbonization strategy to convert waste poly(ε-caprolactone) (abbreviated as PCL) into graphene and subsequently fabricate bifunctional graphene-based solar evaporators capable of the solar-driven interfacial steam generation and hydrovoltaic power generation.PCL is a semi-crystalline polyester and widely used in drug
Graphene metamaterial solar absorber using Al-TiN-Fe for
According to the modern inventions in power generation, one of the popular techniques is a solar power system that mainly uses sunlight 6. Solar power is generally used by converting the sun''s
Solar Hydrogen Production and Storage in Solid Form:
When solar power is used to generate hydrogen from water, the process is known as solar hydrogen production. This method involves direct solar water splitting, also referred to as the photolytic process, where solar light,
Efficiency enhancement on the solar steam generation by wick
As we know, the graphene nanoparticles have good optical absorption. When particle fraction increases and the distribution is more uniform, the solar power absorption increases. Thus the solar power absorptivity when using HI reduction method is higher than the case when using microwave reduction method, which has been confirmed by Fig. 3 (d
Self-assembled Cu doped NiO loaded reduced graphene oxide
As compared to the technology, involving the generation of electrical energy from the solar heat using photovoltaics (PV) and concentrated solar power systems (CSP), solar thermoelectric generators (STEG) enjoys unique advantage of being solid-state device and can be used as portable power generators [15]. The archetype of the STEG utilizes the broad solar
Graphene Solar: Introduction and Market News
Sun exposure is critical and so location plays a significant role in the generation of electricity. Areas that are cloudy or foggy for long periods of time will produce much less electricity. HydroGraph to supply graphene to