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With the development of solar steam generation (SSG) for clean water production, conjugated photothermal materials (PTMs) have attracted significant interest because of their advantages over metallic and inorganic PTMs in terms of high light absorption, designable molecular structures, flexible morphology, and solution processability. We review here the recent progress in solar steam generation devices based on conjugated organic materials. Conjugated organic materials are processed into fibers, membranes, and porous structures. Therefore, nanostructure design based on the concept of nanoarchitectonics is crucial to achieve high SSG efficiency. We discuss the considerations for designing SSG absorbers and describe commonly used conjugated organic materials and structural designs.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10113523 | PMC |
http://dx.doi.org/10.3762/bjnano.14.36 | DOI Listing |
Adv Mater
September 2025
Center for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
Global water scarcity demands next-generation desalination technologies that transcend the limitations of energy-intensive processes and salt accumulation. Herein, a groundbreaking interfacial solar steam generation system capable of simultaneous hypersaline desalination and ambient energy harvesting is introduced. Through hierarchical hydrogel architecture incorporating a central vertical channel and radial channels with gradient apertures, the design effectively decouples salt transport and water evaporation: solar-driven fluid convection directs water outward for evaporation, while inward salt migration prevents surface crystallization and redistributes excess heat.
View Article and Find Full Text PDFLangmuir
September 2025
Weihai Huadong Automation Co., Ltd, Weihai 264205, China.
With the continuous growth of the global population and the acceleration of industrialization and urbanization, freshwater scarcity has become an increasingly severe challenge. Solar-powered seawater desalination technologies based on interfacial evaporators have received widespread attention. However, the preparation process of interfacial evaporators is complicated, and it is difficult for them to maintain long-term service.
View Article and Find Full Text PDFChem Sci
August 2025
Institut National de la Recherche Scientifique 1650 Boulevard Lionel Boulet Varennes J3X 1P7 Canada
Solar steam generation, a sustainable and cost-effective water purification technique, has emerged as a promising solution to the global freshwater shortage. Plasmonic photothermal nanomaterials (NMs) have recently garnered enormous attention owing to their strong light-matter interactions and high photothermal conversion efficiency. This review begins by outlining the fundamentals of the plasmonic effect.
View Article and Find Full Text PDFNanoscale Horiz
August 2025
School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacturing of Precision Medicine Equipment, Southeast University, Nanjing, 211189, China.
Solar-driven reaction technology offers a promising route to clean energy generation and sustainable development. Despite significant advancements in photocatalysts and photothermal materials, challenges remain in device structural design, including insufficient light utilization, slow water transport, and inefficient gas separation. Here, we design a floatable cellulose nanofiber aerogel featuring a gradient-structured directional porous architecture to address these challenges.
View Article and Find Full Text PDFSmall
August 2025
State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China.
Solar-driven water purification is a key strategy for freshwater production. In this study, BiOI/BiS poly(vinyl alcohol) hydrogel (BPH) that integrates photothermal and photocatalytic effects for synergistic desalination and heavy metal ion removal is reported. The hybrid hydrogel serves as an efficient platform for steam generation and Cr (VI) reduction due to its dynamic hydrophilic network.
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