Janus Structured Solar Evaporator with Intrinsic Salt Resistance towards High-Efficient Desalination

IF 3.9 3区化学 Q2 POLYMER SCIENCE

Journal of Inorganic and Organometallic Polymers and Materials Pub Date : 2024-10-15 DOI:10.1007/s10904-024-03382-z

Wei Wang, Xuelong Chen, Ningjing Bai, Jingbo Zhu, Caiyan Zhang, Baozheng Cui, Lina Chen, Huixin Wang, Chenlong Kang, Youmao Tang, Zewen Li, Dongyu Zhao, Haijun Niu, Zhe Wang

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引用次数: 0

Abstract

Utilizing inexhaustible solar energy and seawater resources, solar-driven interfacial steam generation (SSG) offers a straightforward and efficient solution to freshwater scarcity and wastewater reuse. The present study provides a seawater desalination strategy through carbon nanotubes/thermoplastic polyurethane/polydimethylsiloxane (CNTs/TPU/PDMS) composite sponge. This material is engineered for enhanced solar-driven interfacial evaporation, explicitly targeting the mitigation of salt deposition which is detrimental to the efficiency of traditional solar evaporator. Using a commercially available melamine sponge as the base structure, an impregnation-drying technique was adopted for the optimization of light absorber CNTs. The formation of a Janus structure by incorporating a composite layer of PDMS, melamine sponge, and CNTs enhances the salt resistance and water transport capability of the evaporator. Owing to light absorption properties and Janus structure, a maximal evaporation rate of 5.02 kg m^− 2 h^− 1, with a sustained average rate of 4.8 kg m^− 2 h^− 1, as well as proficient ion rejection and organic dye purification efficacy was achieved.

Graphical Abstract

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面向高效海水淡化的Janus结构耐盐太阳能蒸发器

利用取之不尽的太阳能和海水资源，太阳能驱动的界面蒸汽产生（SSG）为淡水短缺和废水回用提供了一个简单有效的解决方案。本研究提出了一种通过碳纳米管/热塑性聚氨酯/聚二甲基硅氧烷（CNTs/TPU/PDMS）复合海绵进行海水淡化的策略。这种材料是为增强太阳能驱动的界面蒸发而设计的，明确的目标是减轻对传统太阳能蒸发器效率有害的盐沉积。以市售的三聚氰胺海绵为基体结构，采用浸渍-干燥工艺对光吸收剂碳纳米管进行优化。PDMS、三聚氰胺海绵和CNTs复合层形成Janus结构，增强了蒸发器的耐盐性和输水能力。由于光吸收特性和Janus结构，最大蒸发速率为5.02 kg m−2 h−1，持续平均蒸发速率为4.8 kg m−2 h−1，并且具有良好的离子截留和有机染料净化效果。图形抽象

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来源期刊

Journal of Inorganic and Organometallic Polymers and Materials 化学-高分子科学

CiteScore

8.30

自引率

7.50%

发文量

335

审稿时长

1.8 months

期刊介绍： Journal of Inorganic and Organometallic Polymers and Materials [JIOP or JIOPM] is a comprehensive resource for reports on the latest theoretical and experimental research. This bimonthly journal encompasses a broad range of synthetic and natural substances which contain main group, transition, and inner transition elements. The publication includes fully peer-reviewed original papers and shorter communications, as well as topical review papers that address the synthesis, characterization, evaluation, and phenomena of inorganic and organometallic polymers, materials, and supramolecular systems.