Scalable Carbon Black Enhanced Nanofiber Network Films for High‐Efficiency Solar Steam Generation

Abstract Developing cost‐effective interfacial solar steam generation devices based on advanced structured materials for water desalination is highly desired. Herein, a high‐efficiency solar steam generation based on a novel solar energy receiver of carbon black (CB)‐based composite nanofiber networ...

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Main Authors: Rong Zhang, Yuewei Zhou, Bo Xiang, Xujia Zeng, Yanlong Luo, Xiangkang Meng, Shaochun Tang
Format: Article
Language:English
Published: Wiley-VCH 2021-12-01
Series:Advanced Materials Interfaces
Subjects:
Online Access:https://doi.org/10.1002/admi.202101160
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author Rong Zhang
Yuewei Zhou
Bo Xiang
Xujia Zeng
Yanlong Luo
Xiangkang Meng
Shaochun Tang
author_facet Rong Zhang
Yuewei Zhou
Bo Xiang
Xujia Zeng
Yanlong Luo
Xiangkang Meng
Shaochun Tang
author_sort Rong Zhang
collection DOAJ
description Abstract Developing cost‐effective interfacial solar steam generation devices based on advanced structured materials for water desalination is highly desired. Herein, a high‐efficiency solar steam generation based on a novel solar energy receiver of carbon black (CB)‐based composite nanofiber networks with designed integrated 2D water path is reported. The receiver having a two‐layer structure is prepared by a one‐step electrospinning a suspension of CB particles in cellulose acetate (CA) onto a porous PET substrate. The upper hydrophilic CA/CB nanofiber layer works for light absorption and water evaporation and the bottom hydrophilic PET layer is vertically inserted into the water to act as 2D water path in charge of water pumping for improved efficiency of water supply and minimized heat loss. The solar evaporator demonstrates an ultrahigh evaporation rate of 1.48 kg m–2 h–1 and solar energy conversion efficiency of 98.6% under 1 kW m–2 (1‐sun) illumination. Especially, the conversion efficiency is much superior over the values of the most previous ones, while the developed technique offers great potential for low‐cost and large‐scale production.
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spelling doaj.art-33088fbb3c5a49de8848996b5b0151fc2023-08-02T03:24:30ZengWiley-VCHAdvanced Materials Interfaces2196-73502021-12-01824n/an/a10.1002/admi.202101160Scalable Carbon Black Enhanced Nanofiber Network Films for High‐Efficiency Solar Steam GenerationRong Zhang0Yuewei Zhou1Bo Xiang2Xujia Zeng3Yanlong Luo4Xiangkang Meng5Shaochun Tang6National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied Sciences Nanjing University Nanjing 210093 P. R. ChinaNational Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied Sciences Nanjing University Nanjing 210093 P. R. ChinaNational Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied Sciences Nanjing University Nanjing 210093 P. R. ChinaCollege of Science Nanjing Forestry University Nanjing 210037 P. R. ChinaCollege of Science Nanjing Forestry University Nanjing 210037 P. R. ChinaNational Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied Sciences Nanjing University Nanjing 210093 P. R. ChinaNational Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied Sciences Nanjing University Nanjing 210093 P. R. ChinaAbstract Developing cost‐effective interfacial solar steam generation devices based on advanced structured materials for water desalination is highly desired. Herein, a high‐efficiency solar steam generation based on a novel solar energy receiver of carbon black (CB)‐based composite nanofiber networks with designed integrated 2D water path is reported. The receiver having a two‐layer structure is prepared by a one‐step electrospinning a suspension of CB particles in cellulose acetate (CA) onto a porous PET substrate. The upper hydrophilic CA/CB nanofiber layer works for light absorption and water evaporation and the bottom hydrophilic PET layer is vertically inserted into the water to act as 2D water path in charge of water pumping for improved efficiency of water supply and minimized heat loss. The solar evaporator demonstrates an ultrahigh evaporation rate of 1.48 kg m–2 h–1 and solar energy conversion efficiency of 98.6% under 1 kW m–2 (1‐sun) illumination. Especially, the conversion efficiency is much superior over the values of the most previous ones, while the developed technique offers great potential for low‐cost and large‐scale production.https://doi.org/10.1002/admi.2021011602D water pathcarbon black‐based compositeselectrospinningsolar steam generationphotothermal conversion materials
spellingShingle Rong Zhang
Yuewei Zhou
Bo Xiang
Xujia Zeng
Yanlong Luo
Xiangkang Meng
Shaochun Tang
Scalable Carbon Black Enhanced Nanofiber Network Films for High‐Efficiency Solar Steam Generation
Advanced Materials Interfaces
2D water path
carbon black‐based composites
electrospinning
solar steam generation
photothermal conversion materials
title Scalable Carbon Black Enhanced Nanofiber Network Films for High‐Efficiency Solar Steam Generation
title_full Scalable Carbon Black Enhanced Nanofiber Network Films for High‐Efficiency Solar Steam Generation
title_fullStr Scalable Carbon Black Enhanced Nanofiber Network Films for High‐Efficiency Solar Steam Generation
title_full_unstemmed Scalable Carbon Black Enhanced Nanofiber Network Films for High‐Efficiency Solar Steam Generation
title_short Scalable Carbon Black Enhanced Nanofiber Network Films for High‐Efficiency Solar Steam Generation
title_sort scalable carbon black enhanced nanofiber network films for high efficiency solar steam generation
topic 2D water path
carbon black‐based composites
electrospinning
solar steam generation
photothermal conversion materials
url https://doi.org/10.1002/admi.202101160
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AT boxiang scalablecarbonblackenhancednanofibernetworkfilmsforhighefficiencysolarsteamgeneration
AT xujiazeng scalablecarbonblackenhancednanofibernetworkfilmsforhighefficiencysolarsteamgeneration
AT yanlongluo scalablecarbonblackenhancednanofibernetworkfilmsforhighefficiencysolarsteamgeneration
AT xiangkangmeng scalablecarbonblackenhancednanofibernetworkfilmsforhighefficiencysolarsteamgeneration
AT shaochuntang scalablecarbonblackenhancednanofibernetworkfilmsforhighefficiencysolarsteamgeneration