Facile preparation of polydimethylsiloxane/carbon nanotubes modified melamine solar evaporators for efficient steam generation and desalination

doi:10.1016/j.jcis.2020.10.002

CORC > 兰州理工大学 > 兰州理工大学

	Facile preparation of polydimethylsiloxane/carbon nanotubes modified melamine solar evaporators for efficient steam generation and desalination
	Li, Qingwei 3; Zhao, Xia 2; Li, Lingxiao 2; Hu, Tao 2; Yang, Yanfei 2; Zhang, Junping 1,2
刊名	Journal of Colloid and Interface Science
	2021-02-15
卷号	584 页码:602-609
关键词	Deionized water Desalination Evaporation Evaporators Microchannels Nanotubes Phase separation Silicones Steam generators Facile preparation Low thermal conductivity Preparation method Preparation process Solar desalination Solar evaporation Solar evaporators Steam generation
ISSN号	00219797
DOI	10.1016/j.jcis.2020.10.002
英文摘要	Solar driven interfacial evaporation has received extensive attention as a very promising desalination technique to solve the fresh water shortage crisis. However, salt-fouling and poor stability during long-term solar desalination seriously hinder applications of solar evaporators. In addition, most of the reported evaporators rely on expensive materials and complex preparation processes. Here, we report facile preparation of polydimethylsiloxane/carbon nanotubes (PDMS/CNTs) modified melamine solar evaporators for efficient steam generation and desalination. The elastic solar evaporators feature (i) macroporous network with rough skeleton owing to phase separation of PDMS, high solar absorbance (99%) and excellent photothermal performance, low thermal conductivity (0.032 W m−1 K−1), and (iii) unique wettability (hydrophobic upper surface and hydrophilic lower part). Consequently, the evaporators have an evaporation rate of 1.44 kg m−2 h−1 and a solar-to-vapor conversion efficiency of 84% for solar evaporation of deionized water under 1 sun illumination. Interestingly, the evaporators show similar solar evaporation performance for saline water compared to deionized water. Moreover, the evaporators show excellent salt-resistance and stability during long-term continuous solar desalination owing to rapid water replenishment in the evaporators. The evaporators may find practical applications in solar desalination because of the merits of the evaporators and the simple preparation method. © 2020 Elsevier Inc.
WOS研究方向	Chemistry
语种	英语
出版者	Academic Press Inc.
WOS记录号	WOS:000600220000001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147140]
专题	兰州理工大学
作者单位	1.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing; 100049, China 2.Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou; 730000, China; 3.Department of Chemical Engineering, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Li, Qingwei,Zhao, Xia,Li, Lingxiao,et al. Facile preparation of polydimethylsiloxane/carbon nanotubes modified melamine solar evaporators for efficient steam generation and desalination[J]. Journal of Colloid and Interface Science,2021,584:602-609.
APA	Li, Qingwei,Zhao, Xia,Li, Lingxiao,Hu, Tao,Yang, Yanfei,&Zhang, Junping.(2021).Facile preparation of polydimethylsiloxane/carbon nanotubes modified melamine solar evaporators for efficient steam generation and desalination.Journal of Colloid and Interface Science,584,602-609.
MLA	Li, Qingwei,et al."Facile preparation of polydimethylsiloxane/carbon nanotubes modified melamine solar evaporators for efficient steam generation and desalination".Journal of Colloid and Interface Science 584(2021):602-609.