Robust and versatile polypyrrole supramolecular network packed photothermal aerogel for solar-powered desalination

IF 8.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Desalination Pub Date : 2023-09-01 DOI:10.1016/j.desal.2023.116674

Xueting Zhao , Tingyuan Wang , Yuanyuan Jiang, Qianying Lu, Jiefeng Pan

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引用次数: 0

Abstract

Solar-powered desalination is an emerging and sustainable water purification technology, that extends accessible clean water to relieve global water scarcity. Although great achievements have been made to develop interfacial photothermal materials, it is still challenging to simultaneously achieve high-level evaporation rates (>3 kg·m⁻²·h⁻¹, 1 sun) and high-efficient energy conversion (>95 %) under 1 sun illumination. Herein, a polypyrrole supramolecular network-packed photothermal aerogel is designed and developed as solar-thermal evaporator to boost highly efficient solar-powered desalination. The photothermal aerogel integrates the photothermal, hydrophilic, and nanostructured polypyrrole supramolecular network to intensify solar-thermal energy utilization and reduce evaporation enthalpy, and the heat-insulating polysiloxane aerogel to enable mass transfer and suppress heat loss. The combined merits of the polypyrrole supramolecular network-packed photothermal aerogel promise outstanding evaporation rate of 3.61 kg·m⁻²·h⁻¹ and remarkable solar-to-vapor conversion efficiency of 97.1 % under 1 sun illumination. Furthermore, polypyrrole supramolecular network imparts reliable salt resistance, cyclic stability, and environment tolerability for potential applications in solar seawater desalination. The comprehensive performance has considerable advantages over state-of-the-art materials. The study provides a new paradigm for the design of solar-thermal composites to advanced solar-powered desalination and contributes to future sustainable environmental and energy applications.

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坚固和多功能聚吡咯超分子网络包装光热气凝胶用于太阳能海水淡化

太阳能海水淡化是一种新兴的、可持续的水净化技术，它扩大了可获得的清洁水，以缓解全球水资源短缺。虽然在开发界面光热材料方面已经取得了很大的成就，但在1个太阳照射下同时实现高蒸发率(3 kg·m−2·h−1,1)和高效能量转换(95%)仍然是一个挑战。本文设计并开发了一种聚吡咯超分子网络包装光热气凝胶作为太阳能热蒸发器，以促进高效的太阳能海水淡化。光热气凝胶结合了光热、亲水和纳米结构的聚吡咯超分子网络，加强了太阳能热能的利用，降低了蒸发焓，而隔热的聚硅氧烷气凝胶则实现了传质和抑制热损失。聚吡咯超分子网络包装光热气凝胶在1个太阳光照下的蒸发速率为3.61 kg·m−2·h−1，光蒸汽转化效率为97.1%。此外，聚吡咯超分子网络具有可靠的耐盐性、循环稳定性和环境耐受性，在太阳能海水淡化中具有潜在的应用前景。综合性能优于最先进的材料。该研究为先进的太阳能脱盐太阳能热复合材料的设计提供了一个新的范例，并有助于未来可持续的环境和能源应用。

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

Desalination 工程技术-工程：化工

CiteScore

14.60

自引率

20.20%

发文量

619

审稿时长

41 days

期刊介绍： Desalination is a scholarly journal that focuses on the field of desalination materials, processes, and associated technologies. It encompasses a wide range of disciplines and aims to publish exceptional papers in this area. The journal invites submissions that explicitly revolve around water desalting and its applications to various sources such as seawater, groundwater, and wastewater. It particularly encourages research on diverse desalination methods including thermal, membrane, sorption, and hybrid processes. By providing a platform for innovative studies, Desalination aims to advance the understanding and development of desalination technologies, promoting sustainable solutions for water scarcity challenges.