Superwetting monolithic hypercrosslinked polymers nanotubes with high salt-resistance for efficient solar steam generation

doi:10.1016/j.solmat.2020.110913

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Superwetting monolithic hypercrosslinked polymers nanotubes with high salt-resistance for efficient solar steam generation
	Liu, Fang 1,2; Liang, Weidong 2; Wang, Chengjun 2; He, Jingxian 2; Xiao, Chaohu 2; Zhu, Zhaoqi 2; Sun, Hanxue 2; Li, An 2
刊名	Solar Energy Materials and Solar Cells
	2021-03-01
卷号	221
关键词	Contact angle Desalination Friedel-Crafts reaction Irradiation Light absorption Nanotubes Physicochemical properties Polypyrroles Sodium alginate Sodium chloride Solar energy Superhydrophilicity Water absorption Fabrication process High energy conversions Hypercrosslinked polymers Large specific surface areas Low thermal conductivity Solar conversion efficiencies Superhydrophilic modification Water contact angle
ISSN号	09270248
DOI	10.1016/j.solmat.2020.110913
英文摘要	Solar-driven water evaporation is emerging as a promising strategy to utilize solar energy for the desalination and water purification. In this work, two kinds of monoliths based on hypercrosslinked polymers (HCPs) nanotubes, which were synthesized using inexpensive and conventional chemicals, i.e. benzene and methylbenzene as building blocks via Friedel-Crafts reaction, have been created as photothermal materials through a superhydrophilic modification followed by the coating of polypyrrole as light absorption layer. The as-synthesized HCPs possess large specific surface area (up to 773 m2 g-1) and low apparent density (0.011 g cm-3), which endow them very low thermal conductivity (0.029 W m-1 k-1). After modification with sodium alginate and polypyrrole, the resulting HCPs (named as PPy-M-HCPs) show surface superhydrophilicity (water contact angle ~0°), stronger light absorption (ca. 95%) and better mechanical properties. Taking advantages of these unique physicochemical properties mentioned above, the PPy-M-HCPs exhibit outstanding light-to-heat conversion performance with a high solar conversion efficiency of ca. 87% achieved under 1 kW m-2 irradiation. In addition, the PPy-M-HCPs also show excellent salt-resistant performance, e.g. a high energy conversion efficiency of more than 85% obtained in 20 wt% NaCl solution, due to their loosely porous structure coupling with their superhydrophilic wettability. Based on the merits of simple fabrication process, excellent stability and high solar conversion efficiency, the PPy-M-HCPs may have great potentials as efficient photothermal materials for real applications. © 2020 Elsevier B.V.
WOS研究方向	Energy & Fuels ; Materials Science ; Physics
语种	英语
出版者	Elsevier B.V.
WOS记录号	WOS:000604222600007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147233]
专题	石油化工学院发展规划处
作者单位	1.School of Chemistry and Chemical Engineering, Lanzhou City University, Jiefang Road 11, Lanzhou; 730070, China 2.College of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Liu, Fang,Liang, Weidong,Wang, Chengjun,et al. Superwetting monolithic hypercrosslinked polymers nanotubes with high salt-resistance for efficient solar steam generation[J]. Solar Energy Materials and Solar Cells,2021,221.
APA	Liu, Fang.,Liang, Weidong.,Wang, Chengjun.,He, Jingxian.,Xiao, Chaohu.,...&Li, An.(2021).Superwetting monolithic hypercrosslinked polymers nanotubes with high salt-resistance for efficient solar steam generation.Solar Energy Materials and Solar Cells,221.
MLA	Liu, Fang,et al."Superwetting monolithic hypercrosslinked polymers nanotubes with high salt-resistance for efficient solar steam generation".Solar Energy Materials and Solar Cells 221(2021).