Reduced Graphene Oxide Decorated Cellulose Acetate Filter Evaporators for Highly Efficient Water Evaporation and Purification Driven by Solar Energy and Environmental Energy

Yu, Ming‐Yuan; Li, Changjun; Li, Wei; Peng, Min

doi:10.1002/adsu.202200023

Cited by 21 publications

(8 citation statements)

References 67 publications

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“…In addition, the matte black section (under the absorbers) can harvest the surrounding environment heat energy via convective and heat radiative effects. [39,40] The net energy HM-Mo 5 N 6 solar devices gained from the environment can be calculated using the below Equation ( 1): [41][42][43]…”

Section: Resultsmentioning

confidence: 99%

2D Higher‐Metal Nitride Nanosheets for Solar Steam Generation

Wang

Shang

Yang

et al. 2022

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excellent electromagnetic wave absorption capacity and a localized surface plasmon effect, resulting in broadband light (UVvis-Infrared) absorption and excellent photothermal conversion efficiency. [8][9][10][11][12] Specifically, plasmonic TMN materials have displayed high melting points, excellent thermal and chemical stabilities, and are less expensive than noble metals such as Au. [13] Recently, group 4 TMNs (65% of HfN, 58% of ZrN, and 49% of TiN) exhibited higher photothermal transduction efficiencies than that of commercially Au (43%) samples because of their strong localized surface plasmon resonance effects. [14,15] However, most of these TMN compounds are usually formed from non-or sub-stoichiometric compositions and contain low nitrogen content. [16] Specifically, when the metallic atoms are in higher oxidation states, their corresponding metal nitride compounds are expected to form higher-metal (HM) nitrogen-rich (Nitrogen:Metal ratio >1) nitrides. These characteristics can result in some nitrides, such as HM-Mo 5 N 6 , posessing metallic properties resulting in improved electrocatalytic performance compared to nitrogen-poor nitrides. This can be attributed to the more complicated electron orbital hybridization state in Mo 5 N 6 compared to MoN. [17] For instance, the d band center positions of HM-Mo 5 N 6 and MoN are −1.96 and −2.28 eV. Therefore, the high valence state of Mo atoms in HM-Mo 5 N 6 and strong plasmon effect result in better catalytic activity and demonstrate great potential for solar-driven water generation. Alternatively, other HM nitrides, such as Ta 3 N 5 , demonstrate semiconductivity, which is advantageous for applications such as photoelectrochemical water splitting. [18] Furthermore, due to their higher oxidation states, HM-nitrides exhibit excellent corrosion resistance and high conductivity resulting in electrochemical catalytic behavior under harsh environments such as extremes of pH. [17,19] To date, chemical vapor deposition (CVD) has been explored to synthesize graphene, transition metal dichalcogenides (TMDs) hexagonal boron nitride (h-BN), and has also been used to obtain Mo 2 C, MoN, and Mo 5 N 6 nanosheets through the selection of specific precursors. [20][21][22][23][24][25] Furthermore, other researchers have also obtained metal nitrides via either the salt-template-assisted or atomic substitution methods under an ammonia atmosphere. [26][27][28][29][30] Although there has been Higher-metal (HM) nitrides are a fascinating family of materials being increasingly researched due to their unique physical and chemical properties. However, few focus on investigating their application in a solar steam generation because the controllable and large-scale synthesis of these materials remains a significant challenge. Herein, it is reported that higher-metal molybdenum nitride nanosheets (HM-Mo 5 N 6 ) can be produced at the gramscale using amine-functionalized MoS 2 as precursor. The first-principles calculation confirms amine-functionalized MoS 2 nanosheet effectively lengthens...

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Section: Resultsmentioning

confidence: 99%

2D Higher‐Metal Nitride Nanosheets for Solar Steam Generation

Wang

Shang

Yang

et al. 2022

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“…Comparing to the previously reported solar evaporation devices (Figure 3i and Table S2, Supporting Information), our presented system exhibits obvious advantages in the solar-driven water evaporation performance and efficiency. [24,[38][39][40][41][42][43][44][45] The collected water quality was estimated by the ohmic value that was achieved by using a multimeter keeping constant distance between two electrodes. [44] The collected water and the purified water used in Lab show the resistance values of 108.3 and 104.6 kΩ (Figure S7, Supporting Information), respectively, indicating that most of salt in brine has been removed by evaporation treatment of our presented system.…”

Section: Resultsmentioning

confidence: 99%

Sponge‐Supported Reduced Graphene Oxides Enable Synergetic Photothermal and Electrothermal Conversion for Water Purification Coupling Hydrogen Peroxide Production

Chang

Xue

et al. 2022

Solar RRL

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To address the freshwater scarcity issue and the environmental impact of wastewater disposal, herein a novel efficient strategy to enhance the performance of solar‐driven interfacial evaporation technique is developed to purify salt‐containing wastewater and seawater for sustainable clean water production. This strategy enables photovoltaic electricity to power photothermal conversion for rapidly vaporizing brine using commercial melamine sponge (MS)‐supported reduced graphene oxides (MS@rGO). The record‐high performance with an evaporation rate of 9.02 kg m−2 h−1 along with a solar‐to‐vapor efficiency of 287.4% in 7 wt% salt brine is achieved under 1 sun and optimized voltage applied. During evaporating brine, MS@rGO can also efficiently catalyze oxygen reduction for the sustainable production of H2O2 to serve as the broad‐acting disinfecting agent in the condensed water. Because applying voltages can facilitate the movement of salt ions in brine, the presented system is endowed with excellent salt‐resistance and superior ability of extracting photogenerated electrons, significantly improving the energy utilization efficiency. Therefore, this design provides a new way for highly efficiently applying solar energy in saline wastewater purification and seawater desalination with low cost.

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“…A bunch of rGO/cellulose acetate filters [128] 2.81 130.2% rGO-/KH550-modified hollow glass microsphere aerogel [129] 1.4856 89.13%…”

Section: 7%mentioning

confidence: 99%

Systematic Review of Material and Structural Design in Interfacial Solar Evaporators for Clean Water Production

et al. 2023

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Rational and sustainable utilization of resources is critical for the continuous development of this society. Solar energy, as one of the renewables, shows great potential in replacing part of the traditional energy supplies since it is clean, abundant, and easily convertible to thermal, electrical, and biological energies. Using solar energy as the green driving force, interfacial solar evaporation is a promising way for clean water production to alleviate global water shortage, taking advantage of its high evaporation efficiency (more than 80%) and strong adaptability toward various water sources and fields. In recent years, various kinds of materials with diverse designs have been synthesized and applied in interfacial solar evaporation for clean water production. Herein, recent progress in interfacial solar evaporators for clean water production is systematically reviewed, based on the photothermal conversion mechanisms of solar absorbers, including carbonous, semiconductor‐based, and plasmatic ones. Furthermore, key design factors and strategies in interfacial solar evaporators are reviewed and discussed from material and structural design point of view, such as water transport, thermal management, latent heat for water vaporization, and salt accumulation. Finally, some perspectives related to resolving existing problems in the field are given.

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Reduced Graphene Oxide Decorated Cellulose Acetate Filter Evaporators for Highly Efficient Water Evaporation and Purification Driven by Solar Energy and Environmental Energy

Cited by 21 publications

References 67 publications

2D Higher‐Metal Nitride Nanosheets for Solar Steam Generation

2D Higher‐Metal Nitride Nanosheets for Solar Steam Generation

Sponge‐Supported Reduced Graphene Oxides Enable Synergetic Photothermal and Electrothermal Conversion for Water Purification Coupling Hydrogen Peroxide Production

Systematic Review of Material and Structural Design in Interfacial Solar Evaporators for Clean Water Production

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