Photothermal evaporator with low enthalpy of evaporation and hierarchical porous structure for efficient photothermal evaporation

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162282 - 162282

Опубликована: Апрель 1, 2025

Язык: Английский

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Efficient Double-Layer Evaporators with Adjustable Pores for Sustainable Solar Evaporation

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Янв. 29, 2025

Solar-driven desalination technology is currently an important way to obtain freshwater resources. Significantly, porous materials are used as substrate of interface solar evaporator, and their specific impact water transport property thermal management during evaporation worth exploring. In this paper, poly(vinyl alcohol) (PVA) sponges were prepared by a chemical foaming method, adjusted the PVA polymerization degree, formaldehyde-hydroxyl ratio regulate pore size, polypyrrole (PPy) was grown in situ on surface skeleton sponge construct new interfacial evaporator (PPy/PVA) with different structures. As size changes, trends capability opposite. Among them, PPy/PVA-3 achieves temperature 38.9 °C rate 1.764 kg m-2 h-1 under 1 Sun light. And efficiency exceeds theoretical limit (100%). This because it has optimal structure balance competition mechanism between two aspects. At same time, exhibits good cyclability, stability, self-cleaning capability. addition, practical applicability purification both organic dyes seawater.

Язык: Английский

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Achieving “Ion Diode” Salt Resistance in Solar Interfacial Evaporation by a Tesla Valve‐Like Water Transport Structure

Small, Год журнала: 2024, Номер 20(43)

Опубликована: Июнь 28, 2024

Salt deposition is a disturbing problem that limits the development of passive solar-driven interfacial evaporation. Inspired by fluid control mechanism Tesla valve, novel solar evaporator proposed with valve-like water transport structure to prevent salt accumulation at evaporation interface. A unique "ion diode" resistance this significantly achieved optimizing two asymmetric structures, consisting one side and wide-leg side, which establish reverse-suppressing forward-accelerating channel. In contrast limited ion migration typical symmetric evaporator, such channel caused water/salt ions difference between supply reinforces on thus leading an apparent unidirectional from bulk through side. Consequently, rate 3.25 kg m

Язык: Английский

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Tough, antimicrobial, recyclable hydrogel with tree-trunk-inspired core‐sheath structure for efficient all-day desalination

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 156400 - 156400

Опубликована: Окт. 1, 2024

Язык: Английский

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One-step conversion of waste sawdust into bitter melon-like particles for efficient solar-driven water evaporation

Desalination, Год журнала: 2025, Номер 601, С. 118536 - 118536

Опубликована: Янв. 6, 2025

Язык: Английский

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Efficient “Core–Shell” Carbon‐Based Solar Evaporator with Honeycomb Structure for Large‐Scale Solar‐Driven Water Purification and Energy Harvesting

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 23, 2025

Abstract Solar‐driven interfacial water evaporation holds a broad application prospect in the domain of seawater desalination. However, traditional desalination technology is facing challenge large‐scale preparation and desalting performance. Herein, based on easy processing low cost advantages carbon‐based solar‐thermal materials, study proposes novel strategy to use surfactant Pluronic F127 encapsulate carbon black form size‐stable “core–shell” nanomicelle. Then, evaporator cross‐linked by nanomicelle polyvinyl alcohol constructed with surface patterned design inspired honeycomb structures, which proved that has excellent salt resistance Marangoni effect. Furthermore, it can be used generate electricity realize integration outdoor evaporating generation. The solar reach an rate 2.19 kg m −2 h −1 under one sunlight irradiation. area patterning 132 cm 2 (22 × 6 cm) output voltage natural light up 561 mV. Significantly, maintain persistent without accumulation during for 10 days. This work provides valuable perspective industrialization high‐performance evaporators.

Язык: Английский

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Carbon nanotube-nano-Fe3O4 composite graphene hydrogel with optimized 3D structure for high-performance solar evaporation

Desalination, Год журнала: 2025, Номер unknown, С. 118840 - 118840

Опубликована: Март 1, 2025

Язык: Английский

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Highly efficient solar seawater evaporation by aerogel with vertical channels and hierarchical pores structure based on high-absorbent alginate fibers

Chemical Engineering Journal, Год журнала: 2024, Номер 501, С. 157562 - 157562

Опубликована: Ноя. 12, 2024

Язык: Английский

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Polymers of intrinsic microporosity doped sodium alginate oriented channel aerogels for efficient desalination and wastewater purification by interfacial evaporation

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116495 - 116495

Опубликована: Апрель 1, 2025

Язык: Английский

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Solar‐Powered Hierarchical Microenvironments with Authigenic Multi‐Field Synergies for Simultaneous Extraction of Freshwater and Cesium

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Май 11, 2025

Abstract The escalating global resource and environmental crisis has intensified the urgent demand for efficiently extracting freshwater critical metals from contaminated water sources, particularly nuclear‐contaminated seawater. Herein, a biomass‐based solar‐powered hierarchical self‐extraction micro‐network (BSSM) is proposed presented, an innovative system that seamlessly integrates solar‐driven generation with highly selective cesium ion (Cs + ) extraction. A bamboo‐derived biochar surface‐loaded cobalt oxide nanoparticles (CoO NPs) prepared utilized to comprehensively validate BSSM's efficacy. Leveraging hierarchically engineered microenvironments authigenic multi‐field synergies, designed BSSM achieves high production rate of 3.3 kg m −2 day −1 impressive Cs extraction capacity 34.58 mg g . In conclusion, this study establishes transformative paradigm recovery, providing scalable eco‐friendly panacea address pressing issues, including scarcity, nuclear pollution, security.

Язык: Английский

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