Solar‐Driven Interfacial Evaporation and Self‐Powered Water Wave Detection Based on an All‐Cellulose Monolithic Design,Advanced Functional Materials

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Solar‐Driven Interfacial Evaporation and Self‐Powered Water Wave Detection Based on an All‐Cellulose Monolithic Design
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2020-11-17 , DOI: 10.1002/adfm.202008681
Na Li ₁ , Lifang Qiao ₁ , Jintao He ₁ , Shuxue Wang ₁ , Liangmin Yu _{2,

3} , Petri Murto ₄ , Xiaoyi Li ₁ , Xiaofeng Xu ₁

Affiliation

Solar‐driven interfacial evaporation is an emerging technology with a strong potential for applications in water distillation and desalination. However, the high‐cost, complex fabrication, leaching, and disposal of synthetic materials remain the major roadblocks toward large‐scale applications. Herein, the benefits offered by renewable bacterial cellulose (BC) are considered and an all‐cellulose‐based interfacial steam generator is developed. In this monolithic design, three BC‐based aerogels are fabricated and integrated to endow the 3D steam generator with well‐defined hybrid structures and several self‐contained properties of lightweight, efficient evaporation, and good durability. Under 1 sun, the interfacial steam generator delivers high water evaporation rates of 1.82 and 4.32 kg m⁻² h⁻¹ under calm and light air conditions, respectively. These results are among the best‐performing interfacial steam generators, and surpass a majority of devices constructed from cellulose and other biopolymers. Importantly, the first example of integrating solar‐driven interfacial evaporation with water wave detection is also demonstrated by introducing a self‐powered triboelectric nanogenerator (TENG). This work highlights the potential of developing biopolymer‐based, eco‐friendly, and durable steam generators, not merely scaling up sustainable clean water production, but also discovering new functions for detecting wave parameters of surface water.

中文翻译：

基于全纤维素整体设计的太阳能驱动界面蒸发和自供电水波检测

太阳能驱动的界面蒸发是一种新兴技术，在水蒸馏和脱盐中具有强大的潜力。但是，合成材料的高成本，复杂的制造，浸出和处置仍然是大规模应用的主要障碍。在此，考虑了可再生细菌纤维素（BC）的好处，并开发了全纤维素基界面蒸汽发生器。在这种整体式设计中，制造并集成了三种基于BC的气凝胶，使3D蒸汽发生器具有定义明确的混合结构以及轻巧，高效蒸发和良好耐用性的多个自包含特性。在1个太阳下，界面蒸汽发生器产生的水蒸发率高，分别为1.82和4.32 kg m ^-2 h ^-1分别在安静和空气条件下。这些结果是性能最佳的界面蒸汽发生器之一，超过了大多数由纤维素和其他生物聚合物制成的设备。重要的是，通过引入自驱动摩擦电纳米发电机（TENG）也展示了将太阳能驱动的界面蒸发与水波检测相集成的第一个示例。这项工作强调了开发基于生物聚合物，环保和耐用的蒸汽发生器的潜力，不仅可以扩大可持续的清洁水生产，还可以发现检测地表水波动参数的新功能。

更新日期：2020-11-17

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