Progress in Materials Science, Год журнала: 2024, Номер unknown, С. 101407 - 101407
Опубликована: Ноя. 1, 2024
Язык: Английский
Advanced Materials, Год журнала: 2022, Номер 34(12)
Опубликована: Фев. 5, 2022
Atmospheric water harvesting (AWH) is emerging as a promising strategy to produce fresh from abundant airborne moisture overcome the global clean shortage. The ubiquitous resources allow AWH be free geographical restrictions and potentially realize decentralized applications, making it vital parallel or supplementary freshwater production approach liquid resource-based technologies. Recent advances in regulating chemical properties micro/nanostructures of moisture-harvesting materials have demonstrated new possibilities promote enhanced device performance understandings. This perspective aims provide timely overview on state-of-the-art design how they serve active components AWH. First, key processes AWH, including vapor condensation, droplet nucleation, growth, departure are outlined, desired material based fundamental mechanisms discussed. Then, tailoring materials-water interactions at molecular level play role realizing high uptake low energy consumption shown. Last, challenges outlook further improving designs system engineering aspects highlighted.
Язык: Английский
Процитировано
217
EcoMat, Год журнала: 2022, Номер 4(2)
Опубликована: Янв. 3, 2022
Abstract Plastic waste caused by the extensive usage of face masks during COVID‐19 pandemic has become a severe threat to natural environment and ecosystem. Herein, an eco‐friendly approach repurpose mask for clean water production via solar thermal evaporation is proposed. By taking advantage its interwind structure, holds promise be ideal candidate material constructing photothermal evaporator. In‐situ surface modifications are performed successively with polyvinyl alcohol polypyrrole improve wettability absorption (97%). The obtained mask‐based evaporator achieves significantly enhanced efficiency (91.5%) long‐term salt‐rejection stability. harvested befits plant growing enable farming on sea surface. A floating prototype then developed demonstrate autonomous ocean farming, plants successfully cultivated over time. As such, proposed strategy provides promising solution towards ecological sustainability tapping multiple benefits. image
Язык: Английский
Процитировано
179
Angewandte Chemie International Edition, Год журнала: 2021, Номер 61(3)
Опубликована: Ноя. 15, 2021
Interfacial evaporation using porous hydrogels has demonstrated highly effective solar performance under natural sunlight to ensure an affordable clean water supply. However, it remains challenging realize scalable and ready-to-use hydrogel materials with durable mechanical properties. Here, self-assembled templating (SAT) is developed as a simple yet method fabricate large-scale elastic evaporators excellent desalination performance. The interconnected structure of the low tortuosity tunable pore size enables high level tunability on transport rate. With superior elasticity, are easy process rapid shape recovery after being rolled, folded, twisted over hundred times, exhibit stable rate ≈2.8 kg m-2 h-1 ≈90 % solar-to-vapor efficiency. It anticipated that this SAT strategy, without typical need for freeze-drying, will accelerate industrialization practical applications.
Язык: Английский
Процитировано
166
Angewandte Chemie International Edition, Год журнала: 2022, Номер 61(36)
Опубликована: Июль 15, 2022
Interfacial solar vapor generation (SVG) is regarded as a promising and sustainable strategy for clean water production. While many materials have demonstrated excellent evaporation rates under one sun, it remains challenging to design evaporators without compromising SVG performance in high-salinity brines (≥10 wt %). Herein, polyzwitterionic hydrogels (PZHs) are proposed novel platform desalination. Taking advantage of the unique anti-polyelectrolyte effects, PZHs can trap salt ions from brine form more hydrated polymer network, leading enhanced performance. exhibit an exceptional rate 4.14 kg m-2 h-1 10 % brine, which ≈20 higher than that pure water. It anticipated salt-responsive may provide insights next-generation desalination systems.
Язык: Английский
Процитировано
151
Advanced Materials, Год журнала: 2022, Номер 34(37)
Опубликована: Июль 28, 2022
The ubiquitous nature of atmospheric moisture makes it a significant water resource available at any geographical location. Atmospheric harvesting (AWH) technology, which extracts from the ambient air to generate clean water, is promising strategy realize decentralized production. high uptake by salt-based sorbents them attractive for AWH, especially in arid environments. However, they often have relatively desorption heat, rendering release an energy-intensive process. A LiCl-incorporating polyacrylamide hydrogel (PAM-LiCl) capable effective environments proposed. interactions between hydrophilic network and captured more free weakly bonded significantly lowering heat compared with conventional neat salt sorbents. Benefiting affinity swelling polymer backbones, developed PAM-LiCl achieves ≈1.1 g g-1 20% RH fast sorption kinetics ≈0.008 min-1 further demonstrates daily yield up ≈7 this condition. These findings provide new pathway synthesis materials efficient absorption/desorption properties, reach energy-efficient AWH climates.
Язык: Английский
Процитировано
148
ACS Nano, Год журнала: 2022, Номер 16(3), С. 3554 - 3562
Опубликована: Март 1, 2022
Interfacial solar steam generation (ISSG) utilizing local heating technology for evaporation at the water-to-steam interface is drawing great attention because of its high efficiency solar-thermal conversion a sustainable and eco-friendly drinking water regeneration process. Here, inspired by structure penguin feathers polar bear hairs that both have macropores to trap air thermal insulation, we report bionic evaporator (BSE) with macroporous skeleton partial management macro patulous channels abundant transportation rapid extraction. Meanwhile, 3D hierarchical isotropic truss structures can induce multiple light reflections enable omnidirectional absorption, bimodal pores facilitate ion diffusion suppress salt deposits. This BSE exhibits an rate 2.3 kg m-2 h-1 93% under 1 sun. The advantages resistance make available future practical sewage purification desalination applications.
Язык: Английский
Процитировано
110
Advanced Materials, Год журнала: 2022, Номер 34(12)
Опубликована: Янв. 16, 2022
Water-soluble volatile organic compounds (VOCs) are widely spread in the natural hydrological cycle, contaminating potential water sources, and leading to unexpected ecological hazards. However, water-purification technologies toward VOCs energy-intensive present unsatisfactory purity of obtained water. The fundamental challenge is differentiate motion VOC molecules by separators. Here, concept a super water-extracting gel (SWEG) for VOC-management purification via direct solar distillation proposed. strong hydrogen bonding effect hypercrosslinked hydrophilic polymeric networks enables SWEG extract from VOC-containing water, which rejects solutes while allowing through interfacial evaporation. achieves removal ratio up 99.99% under 1 sun. A system also demonstrated produce clean surpasses other competitive based on electricity.
Язык: Английский
Процитировано
108
Angewandte Chemie International Edition, Год журнала: 2022, Номер 61(43)
Опубликована: Авг. 12, 2022
Water scarcity caused by climate change and population growth poses a grave threat to human society. Of the different water purification technologies put forward, one presents promising strategy that is spatially or temporally non-restricted-atmospheric harvesting (AWH). Here we review recent progress in design study of AWH sorbents, ranging from innovative chemistries integration sophisticated architectures functional components, clarify structure-property-performance relationship governs capture release processes. Features limitations each type sorbents are summarized elucidate optimal working environments modes. Progress applications extending generation thermal management agriculture discussed. Future developments regarding material modifications, performance measurements, system optimizations provided overcome lingering barriers sorbent implementation.
Язык: Английский
Процитировано
100
ACS Materials Letters, Год журнала: 2022, Номер 4(5), С. 1003 - 1024
Опубликована: Апрель 21, 2022
In the context of global water scarcity, vapor available in air is a non-negligible supplementary fresh resource. Current and potential energetically passive procedures for improving atmospheric harvesting (AWH) capabilities involve different strategies dedicated materials, which are reviewed this paper, from perspective morphology wettability optimization, substrate cooling, sorbent assistance. The advantages limitations AWH respectively discussed, as well their performance. various applications based on advanced technologies also demonstrated. A prospective concept multifunctional panel promising cooling material, inspired by silicon-based solar energy panels, finally proposed with brief outlook its challenges.
Язык: Английский
Процитировано
96
Advanced Science, Год журнала: 2022, Номер 9(6)
Опубликована: Янв. 12, 2022
Abstract Interfacial solar steam/vapor technology uses abundant and clean energy water to achieve heating cooling, a promising alleviate environmental issues. To obtain higher conversion utilization efficiency, designing optimizing materials, structures, devices of interfacial technologies attract the attention research community. Given significant progress made in past 5 years, it is valuable systematically summarize discuss recent developments future trends this new multidisciplinary direction. This review aims introduce principles realize cooling devices, applications. Meanwhile, some unsolved scientific technical problems with outlook will also be discussed, hoping promote further rapid development application problems.
Язык: Английский
Процитировано
91