Ultralight Biomass Porous Foam with Aligned Hierarchical Channels as Salt-Resistant Solar Steam Generators
Li, Jiyan; Zhou, Xu; Mu, Peng; Wang, Fei; Sun, Hanxue; Zhu, Zhaoqi; Zhang, Junwei; Li, Weiwen; Li, An
AbstractThe creation of solar steam generators with both high energy conversion efficiency and desired salt resistant performance is essential for practical desalination. Herein, we report for the first time the fabrication of polypyrrole-coated biomass porous foam as efficient solar steam generators. The as-prepared foams possess a low thermal conductivity of 0.022 W M-1 K-1 for alkali-treated corn straw (CSA) and 0.027 W M-1 K-1 for both microwave and alkali-treated corn straw (CSMA). Based on their high light absorption (95-100%), superhydrophilic wettability, excellent thermal insulation, and unique aligned channels, the foams show excellent energy conversion efficiency of 89.74, 91.08, and 91.54% for the polypyrrole-coated CSA (P-CSA) and 96.8, 97.05, and 98.32% for the polypyrrole coated CSMA (P-CSMA) at light intensities of 1, 2, and 3 kW m(-2), respectively. Importantly, thanks to their aligned hierarchical channels, our generators show extraordinary salt-resistant performance, e.g:, the energy conversion efficiencies of P-CSA and P-CSMA were measured to be 62.30 and 94.7% in 20 wt % NaCl at 1 kW m(-2) irradiation, respectively. Furthermore, no obvious salt accumulation was observed after 30 d of continuous operation at real sunlight irradiation, implying an outstanding long-term stability for practical solar steam generation.
Keywordultralight biomass porous foam photothermal materials solar steam salt resistant interfacial evaporation
Indexed BySCI ; SCIE
Funding ProjectNational Natural Science Foundation of China[21975113][51962018][51663012] ; Project of Collaborative Innovation Team, Gansu Province, China[052005] ; Entrepreneurship Talent Project of Lanzhou[2017 -RC -33]
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000507146100076
EI Accession Number20200107951252
EI KeywordsSteam generators
EI Classification Number413.2 Heat Insulating Materials - 445.1 Water Treatment Techniques - 525.5 Energy Conversion Issues - 614.2 Steam Power Plant Equipment and Operation - 641.1 Thermodynamics - 741.1 Light/Optics - 815.1.1 Organic Polymers
Source libraryWOS
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Cited Times:98[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLi, Jiyan; Li, An
AffiliationLanzhou Univ Technol, Coll Petrochem Technol, Langongping Rd 287, Lanzhou 730050, 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,Mu, Peng,et al. Ultralight Biomass Porous Foam with Aligned Hierarchical Channels as Salt-Resistant Solar Steam Generators[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(1):798-806.
APA Li, Jiyan.,Zhou, Xu.,Mu, Peng.,Wang, Fei.,Sun, Hanxue.,...&Li, An.(2020).Ultralight Biomass Porous Foam with Aligned Hierarchical Channels as Salt-Resistant Solar Steam Generators.ACS APPLIED MATERIALS & INTERFACES,12(1),798-806.
MLA Li, Jiyan,et al."Ultralight Biomass Porous Foam with Aligned Hierarchical Channels as Salt-Resistant Solar Steam Generators".ACS APPLIED MATERIALS & INTERFACES 12.1(2020):798-806.
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