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A facile nanocomposite strategy to fabricate a rGO-MWCNT photothermal layer for efficient water evaporation
Wang, Yuchao1; Wang, Canzhu1,2; Song, Xiangju1,3; Megarajan, Suresh Kumar1; Jiang, Heqing1
2018-01-21
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume6Issue:3Pages:963-971
AbstractSolar-driven water evaporation assisted by photothermal membranes is considered as one of the sustainable and cost-effective strategies for pure water generation and wastewater treatment. Herein, we report a facile but effective approach to improve the photothermal performance by combining 2D reduced graphene oxide (rGO) and 1D multi-walled carbon nanotubes (MWCNTs), which have different nanomorphologies. The photothermal layer can be easily deposited on different substrate materials via simple vacuum assistance. Such a composite photothermal layer shows a rough surface with a controllable nano-structure, which can thus optimize solar light harvesting. On the other hand, the formation of a loose internal porous structure and suitable wettability ensure water transport inside the photothermal layer during evaporation. The surface temperature reaches as high as 78 degrees C even under one sun irradiation (1 kW m(-2)), which is 10 degrees C higher than the result of pure rGO membranes. When loaded on a PVDF substrate, the rGO-MWCNT based membrane is flexible and shows an obvious improvement in the evaporation rate, about 79.0% and 8.9% higher than those of pure rGO and MWCNT membranes, respectively. The solar thermal conversion efficiency can reach up to 80.4% without any extra accessory for thermal management. Based on our results, the nanocomposite strategy is facile and effective for the development of novel photothermal membranes for high-efficiency evaporation, and contributes to the widespread application in the fields of desalination and wastewater treatment.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1039/c7ta08972d
WOS KeywordREDUCED GRAPHENE OXIDE ; SOLAR-ENERGY CONVERSION ; STEAM-GENERATION ; HIERARCHICAL STRUCTURE ; CLEAN WATER ; MEMBRANES ; CARBON ; DESALINATION ; NANOPARTICLES ; ULTRALIGHT
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
Funding OrganizationNational Natural Science Foundation of China(21701181) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows(2016LH00035) ; China Postdoctoral Science Foundation(Y63308190V) ; Shandong Provincial Natural Science Foundation, China(ZR2017BB051) ; Shandong Provincial Key RD Project(2016CYJS07A02) ; Qingdao Public Health and Science and Technology Plan(17-3-3-82-nsh)
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000422949700026
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/10546
Collection膜分离与催化团队
Corresponding AuthorJiang, Heqing
Affiliation1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao Key Lab Funct Membrane Mat & Membrane Tec, Qingdao 266101, Peoples R China
2.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Yuchao,Wang, Canzhu,Song, Xiangju,et al. A facile nanocomposite strategy to fabricate a rGO-MWCNT photothermal layer for efficient water evaporation[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(3):963-971.
APA Wang, Yuchao,Wang, Canzhu,Song, Xiangju,Megarajan, Suresh Kumar,&Jiang, Heqing.(2018).A facile nanocomposite strategy to fabricate a rGO-MWCNT photothermal layer for efficient water evaporation.JOURNAL OF MATERIALS CHEMISTRY A,6(3),963-971.
MLA Wang, Yuchao,et al."A facile nanocomposite strategy to fabricate a rGO-MWCNT photothermal layer for efficient water evaporation".JOURNAL OF MATERIALS CHEMISTRY A 6.3(2018):963-971.
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