| Title: | Bilayer rGO-Based Photothermal Evaporator for Efficient Solar-Driven Water Purification([) (]) * |
| Author(s): | Dong W; Wang Y; Zhang Y; Song X; Peng H; Jiang H; |
| Address: | "Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P.R. China. University of Chinese Academy of Sciences, Beijing, 100049, P.R. China. School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P.R. China. School of Materials Science and Engineering, Ocean University of China, Qingdao, 266100, P.R. China" |
| ISSN/ISBN: | 1521-3765 (Electronic) 0947-6539 (Linking) |
| Abstract: | "Interfacial evaporation has emerged as a promising approach to produce freshwater. However, an urgent concern is that, due to the illegal discharge of industrial wastewater, most water bodies are polluted by trace volatile organic compounds (VOCs), which are easily volatilized and enriched in the collected water during the interfacial evaporation process. Herein, a bilayer photothermal evaporator was reasonably designed for contaminated water purification. The bottom hydrophilic rGO-sodium alginate (SA) sheets purposefully disintegrate water transport channels, thus quickly removing VOCs through physical adsorption. The rGO-SA-TiO(2) upper layer sufficiently absorbs incident light and therefore persistently generates reactive oxidizing species to degrade upward VOCs. Notably, the oriented microchannels inside the evaporator allow sustained light reflections to improve the utilization of solar energy. The evaporation rate can reach 1.63 kg m(-2) h(-1) with a considerably high VOC removal efficiency of up to 96 %. Such an integrated bilayer evaporator provides an effective strategy to obtain clean water via solar distillation" |
| Keywords: | *Graphite Sunlight Wastewater *Water Purification VOC removal adsorption bilayer rGO-based evaporator photocatalysis solar-driven water purification; |
| Notes: | "MedlineDong, Weichao Wang, Yuchao Zhang, Yajing Song, Xiangju Peng, Hui Jiang, Heqing eng 51761145107/National Natural Science Foundation of China/ Germany 2021/10/09 Chemistry. 2021 Dec 9; 27(69):17428-17436. doi: 10.1002/chem.202103187. Epub 2021 Oct 27" |
