Organic Network Comprising Sustainable Carbon Dots Upgraded Bacterial Cellulose Evaporator for Interfacial Solar-Driven Water Evaporation

IF 8.7 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2025-05-27 DOI:10.1021/acsmaterialslett.5c00680

Nirmiti Mate, Kamal Prakash, Kallayi Nabeela and Shaikh M. Mobin*,

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Abstract

Photothermal solar water evaporation presents a sustainable approach to alleviate worldwide clean water scarcity, yet challenges of photothermal efficiency, stability, limited applicability, and fabrication complexity hinder its widespread application. Herein, we present a high-performance photothermal membrane (F-CD-p@BC) fabricated by integrating a carbon-dot-based organic network (F-CD-POR) into bacterial cellulose (BC) using the Alder-Longo reaction. F-CD-p@BC exhibits a superior solar water steam generation performance, longevity, and significant adaptability throughout numerous environments. A hydrophilic three-dimensional interlinked porous network of F-CD-p@BC is advantageous for the fast evaporation of water while reducing heat loss. The fabricated F-CD-p@BC membrane efficiently evaporates water at a 2.3 kg m^–2 h^–1 rate (1 sun) and also demonstrates high efficacy in desalination, removal of pollutants, and heavy metal ions from wastewater. Long-term stability confirms its durability across cycles, while outdoor experiments validate real-world applicability. Eco-friendly design of F-CD-p@BC provides an energy-efficient solution for water purification in resource-limited regions, opening emerging avenues for advanced photothermal applications.

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由可持续碳点组成的有机网络升级细菌纤维素蒸发器用于界面太阳能驱动的水蒸发

光热太阳能水蒸发为缓解全球清洁水短缺问题提供了一种可持续的方法，但光热效率、稳定性、有限的适用性和制造复杂性等问题阻碍了其广泛应用。在此，我们提出了一种高性能光热膜（F-CD-p@BC），该膜通过Alder-Longo反应将碳点基有机网络（F-CD-POR）集成到细菌纤维素（BC）中。F-CD-p@BC展示了优越的太阳能水蒸汽产生性能，寿命长，并在许多环境中具有显著的适应性。亲水性三维互联多孔网络F-CD-p@BC有利于水的快速蒸发，同时减少热损失。制造的F-CD-p@BC膜以2.3 kg m-2 h-1的速率（1太阳）有效地蒸发水，并且在脱盐，去除污染物和废水中的重金属离子方面也表现出高效率。长期稳定性证实了其跨周期的耐久性，而户外实验验证了现实世界的适用性。F-CD-p@BC的环保设计为资源有限地区的水净化提供了节能解决方案，为先进的光热应用开辟了新途径。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.