Thermal insulation design for efficient and scalable solar water interfacial evaporation and purification  

作　　者：Jiahui Chen Dainan Zhang Song He Gengpei Xia Xiaoyi Wang Quanjun Xiang Tianlong Wen Zhiyong Zhong Yulong Liao 

机构地区：[1]Center for Applied Chemistry,University of Electronic Science and Technology of China,Chengdu 611731,China [2]State Key Laboratory of Electronic Thin Film and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,China [3]Chengdu Institute of Product Quality Inspection Co.,Ltd.Chengdu 610000,China

出　　处：《Journal of Materials Science & Technology》2021年第7期157-162,共6页材料科学技术（英文版）

基　　金：financially supported by the National R&D Program of China (No. 2017YFA0207400);the National Key Research and Development Plan (No. 2016YFA0300801);Program for Innovative and Entrepreneurial Leading Talents of Dongguan;Fundamental Research Funds for the Central Universities (No. ZYGX2018J030)。

摘　　要：In recent years, solar desalination and water evaporation/purification with various artificial architectures have drawn significant attention. Herein, we introduce a rational design structure for efficient solar water evaporation and purification, focusing on the balance between water transportation and thermal insulation.Natural wood after a simple flame treatment on the surface was utilized as the solar absorber, with a high solar absorbance(~90 %), good hydrophilicity, and excellent heat localization abilities. Besides,a thermal insulator(polystyrene foam) was used to further reduce the thermal loss, and the optimized ratio between the water path and thermal insulator was obtained. A set of floating foam-flamed-wood(F-F-wood) devices were fabricated with a high evaporation rate of 3.92 kgm-2 h-1, exhibiting photothermal purification abilities from seawater and wastewater containing organic dyes and heavy metals. This study sheds light on the rational design of scalable and low-cost devices for solar water evaporation and purification.

关 键 词：BIOMATERIALS Thermal insulation Solar water evaporation PURIFICATION 

分 类 号：TK519[动力工程及工程热物理—热能工程] P747[天文地球—海洋科学]