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A salt-resistant Janus evaporator assembled from ultralong hydroxyapatite nanowires and nickel oxide for efficient and recyclable solar desalination
Qin, DD; Zhu, YJ; Yang, RL; Xiong, ZC
2020-03-28
Source PublicationNANOSCALE
ISSN2040-3364
Issue12Pages:6717
SubtypeArticle
AbstractSolar energy-driven interfacial water evaporation is a promising energy utilization technology in the field of seawater desalination and water purification. However, the accumulation of salt on the heating surface severely impairs the water evaporation performance and long-time stability. Herein, we demonstrate a new kind of photothermal paper comprising a high-temperature-resistant paper made from ultralong hydroxyapatite nanowires and glass fibers and black nickel oxide (NiO) nanoparticles for solar energy-driven desalination. Owing to the high photothermal conversion ability, fast water transportation in the air-laid paper, and good heat insulation, the hydrophilic HN/NiO photothermal paper can achieve efficient, stable and recyclable water evaporation performance. In addition, a Janus HN/NiO photothermal paper based on hydrophobic sodium oleate-modified ultralong hydroxyapatite nanowires has been developed, and it has a high water evaporation efficiency of 83.5% under 1 kW m(-2) irradiation. In particular, with the bottom hydrophobic ultralong hydroxyapatite nanowire layer and water-transporting channels in the air-laid paper to facilitate salt exchange, the as-prepared Janus evaporator exhibits no salt accumulation on the surface, high performance and long-time stable desalination using simulated seawater (3.5 wt% NaCl). Furthermore, the Janus evaporator with the hydrophobic ultralong hydroxyapatite nanowire substrate can be extended to support other photothermal materials such as black titanium oxide (Ti2O3) and Ketjen black carbon. The as-prepared Janus HN/Ti2O3 and Janus HN/KB photothermal paper also exhibit salt-resistant desalination function. The as-prepared Janus salt-resistant photothermal paper with efficient, stable and recyclable merits has great potential in solar energy-driven desalination and water purification.
DOI10.1039/c9nr10357k
WOS KeywordWATER EVAPORATION ; VAPOR GENERATION ; FIRE-RESISTANT ; PAPER ; NANOPARTICLES ; PERFORMANCE ; DESIGN ; SYSTEM
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/28204
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Qin, DD,Zhu, YJ,Yang, RL,et al. A salt-resistant Janus evaporator assembled from ultralong hydroxyapatite nanowires and nickel oxide for efficient and recyclable solar desalination[J]. NANOSCALE,2020(12):6717.
APA Qin, DD,Zhu, YJ,Yang, RL,&Xiong, ZC.(2020).A salt-resistant Janus evaporator assembled from ultralong hydroxyapatite nanowires and nickel oxide for efficient and recyclable solar desalination.NANOSCALE(12),6717.
MLA Qin, DD,et al."A salt-resistant Janus evaporator assembled from ultralong hydroxyapatite nanowires and nickel oxide for efficient and recyclable solar desalination".NANOSCALE .12(2020):6717.
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