Multifunctional Chinese ink-coated viscose fiber composite for evaporation-driven electricity generation and solar-driven steam generation - Details

author：

Indexed by：

EI Scopus

Abstract：

Technologies　for　evaporation-driven　electricity　generation　and　solar-driven　steam　generation　exhibit　significant　potential　for　addressing　energy　crises　and　freshwater　shortages.　Nevertheless,　it　is　still　a　challenge　to　develop　multifunctional　materials　for　efficient　energy　generation　and　seawater　desalination　via　economical　and　simple　methods.　Here,　we　propose　a　Chinese　ink-coated　viscose　fiber　composite　(Ink@VF),　suitable　for　direct　applications　in　evaporation-driven　electricity　generators　(EEGs)　and　solar-driven　steam　generators　(SSGs).　The　Ink@VF　prepared　by　a　simple　dip-dyeing　method　exhibits　excellent　mechanical　properties　(Young’s　modulus　of　18.1　GPa),　hydrophilicity,　electrical　conductivity　(36.51　Ω/sq),　and　photothermal　conversion　properties.　Based　on　the　synergy　of　water　evaporation,　capillary　effect,　and　electric　double　layer　(EDL)　electrokinetic　effect,　the　Ink@VF-based　EEG　can　achieve　a　maximum　open-circuit　voltage　(Voc)　of　0.65　V　and　an　optimal　power　density　of　43.72　mW/m2　with　1　mol/L　NaCl　solution.　It　can　also　be　integrated　in　series　to　develop　a　self-powered　bracelet.　Simultaneously,　the　evaporation　rate　and　solar　energy　conversion　efficiency　of　the　Ink@VF-based　SSG　can　reach　1.32　kg/(m2·h)　and　84.9%　under　1　sun　irradiation,　respectively.　Through　utilizing　the　evaporation-condensation　mechanism,　it　can　achieve　freshwater　generation　at　a　rate　of　1.49　kg/(m2·h)　and　metal　ion　removal　in　excess　of　99.9%.　This　study　provides　a　low-cost　and　efficient　solution　to　the　energy　crisis　and　freshwater　shortage　in　resource-poor　remote　areas　by　utilizing　inexhaustible　natural　resources.　©　2025,　Tsinghua　University　Press.　All　rights　reserved.

Keyword：

Boiler circulation Energy conversion efficiency High modulus textile fibers High pressure boilers Oil fired boilers Packaged boilers Reboilers Solar heating Solar power generation Steam accumulators Synthetic fibers

Community：

[ 1 ] [Weng, Mingcen]Institute of Biology and Chemistry, Fujian University of Technology, Fuzhou; 350118, China
[ 2 ] [Zhou, Jiahao]Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou; 350108, China
[ 3 ] [Yu, Wei]School of Materials Science and Engineering, Fujian University of Technology, Fuzhou; 350118, China
[ 4 ] [Zhang, Bingzheng]School of Materials Science and Engineering, Fujian University of Technology, Fuzhou; 350118, China
[ 5 ] [Zou, Qunpu]Institute of Biology and Chemistry, Fujian University of Technology, Fuzhou; 350118, China
[ 6 ] [You, Minghua]Institute of Biology and Chemistry, Fujian University of Technology, Fuzhou; 350118, China
[ 7 ] [Zhou, Peidi]Fujian Provincial Key Laboratory of Marine Smart Equipment, School of Smart Marine Science and Technology, Fujian University of Technology, Fuzhou; 350118, China
[ 8 ] [Zheng, Chan]Institute of Biology and Chemistry, Fujian University of Technology, Fuzhou; 350118, China
[ 9 ] [Xu, Yun]Institute of Semiconductors, Chinese Academy of Sciences, Beijing; 100083, China
[ 10 ] [Xu, Yun]College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing; 100049, China
[ 11 ] [Xu, Yun]Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, Beijing; 100083, China
[ 12 ] [Chen, Huamin]Institute of Semiconductors, Chinese Academy of Sciences, Beijing; 100083, China