Migration Crystallization Device Based on Biomass Photothermal Materials for Efficient Salt-Rejection Solar Steam Generation
Li, Jiyan1; Zhou, Xu1; Zhang, Jiayi1; Liu, Chao1; Wang, Fei1; Zhao, Yuting2; Sun, Hanxue1; Zhu, Zhaoqi1; Liang, Weidong1; Li, An1

Solar-driven interfacial water evaporation has attracted increasing interest because of its high photothermal conversion efficiency. However, a big challenge still remains as salt crystallization is a bottleneck issue that hinders their practical solar desalination applicability. Herein, we demonstrate a strategy for construction of a salt-rejection solar steam generation system by designing a migration crystallization device (MCD) using superhydrophilic carbonized green algae (SH-CGA) as photothermal materials. By a surface modification, the SH-CGA shows a superhydrophilic wettability which facilitates fast water transportation, in combination with its low thermal conductivity of 0.042 W m(-1) K-1, high light absorption (98 similar to 100%), and abundant porosity. The prepared SH-CGA exhibits a high evaporation rate of 1.35 kg m(-2) h(-1) and conversion efficiency of 83% under 1 kW m(-2) illumination. Interestingly, we designed a simple MCD by adding a cotton thread into the margin of SH-CGA for preventing surface crystallization. No obvious salt accumulation was observed after 15 d continuous operation at real sunlight irradiation, and the device realizes the simultaneous collection of salt (24.26 g of NaCl crystallization) and water. This result may provide a novel and versatile way for creation of salt-rejection solar steam generation systems with great potential for practical solar desalination.

Keywordbiomass photothermal materials solar steam generation migration crystallization device salt rejection
Indexed BySCI ; SCIE ; EI
Funding ProjectNational Natural Science Foundation of China[21975113][51962018][51663012] ; Project of Collaborative Innovation Team, Gansu Province, China[052005] ; Innovation and Entrepreneurship Talent Project of Lanzhou[2017-RC-33]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000526598300106
EI Accession Number20200908249050
EI KeywordsSteam
EI Classification Number445.1 Water Treatment Techniques - 525.5 Energy Conversion Issues - 614.2 Steam Power Plant Equipment and Operation - 741.1 Light/Optics - 802.3 Chemical Operations - 913.1 Production Engineering
Source libraryWOS
Citation statistics
Cited Times:74[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLi, Jiyan; Li, An
Affiliation1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China;
2.Shandong Prov Bur Geol & Mineral Resources, Key Lab Urban Geol & Underground Space Resources, Qingdao Geoengn Explorat Inst, Qingdao 266000, Peoples R China
First Author AffilicationColl Petrochem Engn
Corresponding Author AffilicationColl Petrochem Engn
First Signature AffilicationColl Petrochem Engn
Recommended Citation
GB/T 7714
Li, Jiyan,Zhou, Xu,Zhang, Jiayi,et al. Migration Crystallization Device Based on Biomass Photothermal Materials for Efficient Salt-Rejection Solar Steam Generation[J]. ACS APPLIED ENERGY MATERIALS,2020,3(3):3024-3032.
APA Li, Jiyan.,Zhou, Xu.,Zhang, Jiayi.,Liu, Chao.,Wang, Fei.,...&Li, An.(2020).Migration Crystallization Device Based on Biomass Photothermal Materials for Efficient Salt-Rejection Solar Steam Generation.ACS APPLIED ENERGY MATERIALS,3(3),3024-3032.
MLA Li, Jiyan,et al."Migration Crystallization Device Based on Biomass Photothermal Materials for Efficient Salt-Rejection Solar Steam Generation".ACS APPLIED ENERGY MATERIALS 3.3(2020):3024-3032.
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