A Biomass-Based Hydrogel Evaporator Modified Through Dynamic Regulation of Water Molecules:Highly Efficient and Cost-Effective

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外文摘要：Solar-driven hydrogel evaporator used for water purification demonstrates great potential in seawater desalination and domestic sewage treatment.However,much uncertainty still exists about the most efficient design to obtain cost-effective drinkable water.In this paper,a natural rich biomass Nicandra physalodes(Linn.)Gaertn.polysaccharide was introduced into the polyvinyl alcohol network to control the water distribution during evaporation and build a low-cost hybrid hydrogel solar evaporator with a total material cost of $7.95 m-2.The mixed evaporator works stably in a long-span acid-base range(pH 1-14)and salinity range(0-320 g kg-1).Its daily water purification capacity can reach 24.4 kg m-2 with a water purification capacity of 3.51 kg m-2 h-1 under sunlight.This paper provides a new possibility for a highly efficient and cost-effective water desalination system with guaranteed water quality by focusing on the dynamic regulation of water molecules at the evaporation interface.

外文关键词：

desalinationhydrogelsinterfacial evaporationpolysaccharidesolar energy

作者：

Boqiu Luo、Jin Wen、Hao Wang、Size Zheng、Rui Liao、Wenjing Chen、Omid Mahian、Xiaoke Li

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作者单位：

College of Materials and Chemistry & Chemical Engineering,Chengdu University of Technology,Chengdu 610059,China

School of Optoelectronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China

College of Resources and Environment,Chengdu University of Information Technology,Chengdu 610225,China

School of Chemical Engineering and Technology,Xi'an Jiaotong University,Xi'an 710061,China

Department of Chemical Engineering,Imperial College London,London SW7 2AZ,UK

Renewable Energy and Micro/Nano Sciences Lab,Department of Mechanical Engineering,Faculty of Engineering,Ferdowsi University of Mashhad,Mashhad 91779-48974,Iran

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基金：

Chengdu University of TechnologySichuan Ministry of Science,Technology Project

项目编号：

10912-2019KYQD-0754522ZDYF2878

出版年：

2023

DOI：

10.1002/eem2.12353

能源与环境材料(英文)

CSCD

ISSN：

年,卷(期)：2023.6(3)

参考文献量57