Thermal insulation design for efficient and scalable solar water interfacial evaporation and purification
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2021年第7期
论文作者：Jiahui Chen Dainan Zhang Song He Gengpei Xia Xiaoyi Wang Quanjun Xiang Tianlong Wen Zhiyong Zhong Yulong Liao
文章页码：157 - 162
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.
Jiahui Chen1,2，Dainan Zhang1,2，Song He3，Gengpei Xia3，Xiaoyi Wang2，Quanjun Xiang1，Tianlong Wen2，Zhiyong Zhong2，Yulong Liao1,2
1. Center for Applied Chemistry, University of Electronic Science and Technology of China2. State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China3. Chengdu Institute of Product Quality Inspection Co., Ltd.
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：
