Construction of hierarchical 2D/2D Ti3C2/MoS2 nanocomposites for high-efficiency solar steam generation

Xu, Ruiqi; Wei, Na; Li, Zhenkui; Song, Xiaojie; Li, Qi; Sun, Kunyu; Yang, Enquan; Gong, Like; Sui, Yiling; Tian, Jian; Wang, Xin; Zhao, Minggang; Cui, Hongzhi

doi:10.1016/j.jcis.2020.09.052

Cited by 75 publications

(21 citation statements)

References 59 publications

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“…The ionic concentrations of Na + , Mg 2+ , K + , and Ca 2+ in seawater were 8259.00, 970.22, 258.49, and 294.91 mg L −1 , respectively, and the corresponding ionic concentrations in desalinated water were 0.86, 0.06, 0.07, and 0.21 mg L −1 , which fully met the standards for drinking water by the World Health Organization. [ 72–74 ] This result suggests that PPy‐SS has a great potential for seawater desalination.…”

Section: Resultsmentioning

confidence: 87%

A Stable Bilayer Polypyrrole‐Sorghum Straw Evaporator for Efficient Solar Steam Generation and Desalination

Cai

et al. 2022

Advanced Sustainable Systems

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seawater. Therefore, desalination has been considered to be one of the most promising technologies to solve the shortage of freshwater resources. [5,6] In recent years, many seawater desalination technologies, such as thermal desalination, [4] reverse osmosis desalination, [4,7] forward osmosis desalination, [8,9] and nanofiltration [10] were developed and used to obtain freshwater. These desalination technologies, however, consume a lot of fuel or electricity and indirectly increase carbon dioxide emissions. In addition, they are costly and not suitable for large-scale use in remote or underdeveloped water-deficient areas. [5,11,12] Therefore, it is urgent to develop a fresh and low cost desalination technology that can be driven by renewable clean energy. [13] Among all the renewable energy sources, solar energy has attracted extensive attention from researchers around the world because it can be applied to various water sources, such as seawater, rivers, and sewage to produce fresh water and is regarded as a feasible alternative to traditional fossil fuels. [11,14] Combining the inexhaustible solar energy with the available large amount of seawater, using the solar seawater desalination to produce low-cost and sustainable freshwater has become one of the effective ways to solve the worldwide problem of lack of fresh water resources. [11,15] However, seawater has a remarkably weak absorption rate of sunlight, resulting in wasting the majority of the energy and a low evaporation efficiency.In recent years, researchers have developed a solar interfacial evaporator, which can effectively improve the evaporation efficiency of solar evaporators compared to the traditional technology that uses solar energy to directly heat a large amount of water. [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] For example, Dong et al. [32] developed reed leaves inspired silica nanofibrous aerogel interfacial evaporator that achieves an evaporation rate of 1.25 kg m −2 h −1 under 1 Sun. You et al. [33] developed a cellulose aerogel from natural wood to act as a solar interfacial evaporator, which can achieve an evaporation rate of 1.40 kg m −2 h −1 , corresponding to an evaporation efficiency of 83.4% under 1 Sun. Liu et al. [34] developed a carbonized chitosan aerogel interfacial evaporator that achieves an evaporation rate of about 1.76 kg m −2 h −1 and an evaporation efficiency of about 91.0% under 1 Sun.Among solar interfacial evaporators, interfacial evaporators with bilayer structure are one of the typical types. There are two Solar desalination is one of the most promising technologies for alleviating the shortage of fresh water. In recent years, interfacial solar evaporators have attracted much attention due to their higher energy efficiency compared to traditional technologies that directly heat bulk water. However, its development has been hampered by the complex preparation process, high costs, and low evaporation performance. Here, a bilayer biomass solar interfacial evaporator-polypyrrole-sorghum straw (...

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Section: Resultsmentioning

confidence: 87%

A Stable Bilayer Polypyrrole‐Sorghum Straw Evaporator for Efficient Solar Steam Generation and Desalination

Cai

et al. 2022

Advanced Sustainable Systems

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“…[60,[110][111][112] Some researchers demonstrate the coating of various nanomaterials such as graphite, [113][114][115] multiwalled CNTs (MWCNTs), [116,117] graphene oxide, [118][119][120] reduced graphene oxide, [35,121] carbon dots, [37,38] quantum dots, [122,123] and other 2D materials. [124][125][126] Though the 2D materials and quantum dot-based solar absorbers provide comparatively higher solar evaporation efficiency, their higher cost and complexity in material processing always hinder its practical application for mass production. Therefore, the carbonization or the coating of low-cost materials is the viable option for the large-scale implementation of solar absorber-based interfacial steam generation.…”

Section: Fundamental Mechanism Of Photothermal Conversionmentioning

confidence: 99%

Natural Porous Materials for Interfacial Solar Steam Generation toward Clean Water Production

et al. 2022

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Food along with water, clothes, and shelter has long been considered as basic necessities for human life. [1] However, the reality is that people all around the globe continue to have difficulties in fulfilling their fundamental survival requirements. Rising population, unplanned urbanization, climate change, global energy, and natural resource crises are exacerbating these issues. Despite the fact that water covers more than three-quarters of the Earth's surface, providing fresh water as a fundamental requirement in certain drought-prone areas remains a problem. [2,3] Reducing the conflict between demand and availability for fresh water has become a significant problem in recent decades. According to World Health Organization (WHO), a shortage of freshwater resources may impact half of the world's population in the near future. [4,5] As a result, reliance on nontraditional sources, that is, purification of saltwater, sewage, and industrial effluents, must be increased to ease pressure on conventional water sources. [6][7][8] However, excessive levels of germs and hard particles in water from nontraditional sources may induce illnesses such as typhoid, jaundice, cholera, dysentery, and others. [9] Nevertheless, identifying alternative freshwater sources and implementing sustainable techniques for reusing and recycling water from unconventional sources may be a viable way to address the worldwide problem of freshwater shortage.Recent research on the generation of freshwater has revealed that methods such as reverse osmosis, electrodialysis, thermal desalination, and multiple-effect distillation need a high consumption of fossil fuels, a substantial initial investment, and the emission of polluting gas. [10][11][12] Thus, an interfacial solar-driven steam generation (ISSG)-based system is always recommended as a good candidate for seawater desalination, sterilizing, and wastewater treatment owing to its sustainability, cost-effectiveness, environmental friendliness, as well as ease of operation. In contrast to the natural water evaporation system, the ISSG-based system uses the heat localization method to heat only the portion of water which is associated with the airÀwater interface rather than the bulk water, substantially increasing the water evaporation rate. This technique utilizes the radiant heat from the sun with the assistance of photothermal energy conversion material, making it a promising sustainable solution to the water crisis. Furthermore, with proper design, heat loss can be minimized, allowing this technique to generate enough steam for water desalination, purification, and many other applications. [13][14][15][16][17][18][19] The selection of photothermal energy conversion materials for the ISSG mainly depends on the material's optical absorption spectra, photothermal conversion efficiency, sustainability, and duration of transmitting water to the heating surface (Figure 1). Researchers have investigated many naturally processed materials and nanoparticles (NPs) to design an efficient

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“…Various morphologies of Ti 3 C 2 nanomaterials have been reported for improving solar desalination performance, including aerogel, foam, hydrogel, membrane, monoliths, porous and nanocomposite [ 15 ]. For 2D Ti 3 C 2 nanosheets-based photothermal membranes, zero-dimensional (0D) Au nanoparticles, 2D MoS 2 nanosheets and three-dimensional (3D) Cu 3 BiS 3 nanoflowers were intercalated into 2D Ti 3 C 2 layers to form 2D/0D Ti 3 C 2 /Au [ 16 ], 2D/2D Ti 3 C 2 /MoS 2 [ 17 ] and 2D/3D Ti 3 C 2 /Cu 3 BiS 3 [ 18 ] composite membranes, respectively. Hence, photothermal membrane with rough surface and porous structure by intercalating various dimensional nanostructures has become a candidate for promoting water transportation and vapor escape.…”

Section: Introductionmentioning

confidence: 99%

2D/1D MXene/MWCNT Hybrid Membrane-Based Evaporator for Solar Desalination

et al. 2022

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Solar vapor generation through evaporation using photothermal materials is a promising candidate for seawater desalination. The Ti3C2 MXene membrane has exhibited photothermal behavior in solar water evaporation. However, dense packed two-dimensional (2D) MXene membrane with high reflection loss and insufficient vapor escape channels limited its solar evaporation performance. In this work, one-dimensional (1D) multi-walled carbon nanotubes (MWCNT) were added into 2D Ti3C2 nanosheets as the holder to form a 2D/1D hybrid photothermal membrane. Owing to the 2D/1D hybrid structure, more effective broadband solar absorption, water transportation and vapor escape were achieved.

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Construction of hierarchical 2D/2D Ti3C2/MoS2 nanocomposites for high-efficiency solar steam generation

Cited by 75 publications

References 59 publications

A Stable Bilayer Polypyrrole‐Sorghum Straw Evaporator for Efficient Solar Steam Generation and Desalination

A Stable Bilayer Polypyrrole‐Sorghum Straw Evaporator for Efficient Solar Steam Generation and Desalination

Natural Porous Materials for Interfacial Solar Steam Generation toward Clean Water Production

2D/1D MXene/MWCNT Hybrid Membrane-Based Evaporator for Solar Desalination

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