Biomass-Derived Gradient and Aligned Structured Aerogel for Sustainable Agricultural Irrigation

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-03-23 DOI:10.1021/acs.nanolett.5c00520

Lanyue Zhang, Zhanhong Yuan, Xiaotong Fu, Shiang Shi, Xiang Chen, Pan Chen, Dongdong Ye

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Abstract

Interface evaporation-driven hydroelectric systems integrating water purification and energy collection offer the potential for sustainable agricultural irrigation. However, achieving high evaporation rates and efficient energy harvesting poses challenges, particularly in optimizing evaporation and water transport. This study develops a gradient-aligned structured aerogel (GA aerogel), composed of biomass materials such as cellulose and chitosan, which utilizes efficient water transport through aligned cellulose channels, unique ion management in nanoscale channels, and chitosan’s ability to reduce evaporation energy consumption, thereby enhancing water and energy harvesting performance. The GA aerogel achieves a solar absorption rate of 91.4%, an evaporation rate of 2.5 kg m^–2 h^–1, an output power of 680 nW cm^–2, and stable operation for over 120 h. Furthermore, by integrating a series array with capacitive energy storage, the system utilizes harvested electrical energy to irrigate plants with purified water, promoting sustainable agriculture and providing insights for designing biomass-based solar evaporators.

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用于可持续农业灌溉的生物质的梯度和排列结构气凝胶

结合水净化和能量收集的界面蒸发驱动水力发电系统为可持续农业灌溉提供了潜力。然而，实现高蒸发率和有效的能量收集带来了挑战，特别是在优化蒸发和水运方面。本研究开发了一种梯度排列结构气凝胶（GA气凝胶），该气凝胶由纤维素和壳聚糖等生物质材料组成，利用纤维素排列通道中高效的水分输送，纳米级通道中独特的离子管理，以及壳聚糖减少蒸发能量消耗的能力，从而提高了水和能量收集性能。GA气凝胶的太阳能吸收率为91.4%，蒸发率为2.5 kg m-2 h - 1，输出功率为680 nW cm-2，稳定运行超过120小时。此外，通过集成串联阵列和电容储能，该系统利用收集的电能用纯化水灌溉植物，促进可持续农业，并为设计基于生物质的太阳能蒸发器提供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.