| Title: | Biomimetic Light-Driven Aerogel Passive Pump for Volatile Organic Pollutant Removal |
| Author(s): | Drdova S; Zhao S; Giannakou M; Sivaraman D; Guerrero-Alburquerque N; Bonnin A; Pauer R; Pan Z; Billeter E; Siqueira G; Zeng Z; Koebel MM; Malfait WJ; Wang J; |
| Address: | "Institute of Environmental Engineering, ETH Zurich, Stefano-Franscini-Platz 3, Zurich, 8093, Switzerland. Laboratory for Advanced Analytical Technologies, Swiss Federal Laboratories for Materials Science and Technology, Empa, Uberlandstrasse 129, Dubendorf, 8600, Switzerland. Laboratory for Building Energy Materials and Components, Swiss Federal Laboratories for Materials Science and Technology, Empa, Uberlandstrasse 129, Dubendorf, 8600, Switzerland. Department of Chemistry, University of Fribourg, Chemin du Musee 9, Fribourg, CH-1700, Switzerland. Swiss Light Source, Paul Scherrer Institute, Villigen, CH-5232, Switzerland. Electron Microscopy Center, Swiss Federal Laboratories for Materials Science and Technology, Empa; Uberlandstrasse 129, Dubendorf, CH-8600, Switzerland. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China. Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, CH-8057, Switzerland. Cellulose and Wood Materials Laboratory, Swiss Federal Laboratories for Materials Science and Technology, Empa, Uberlandstrasse 129, Dubendorf, 8600, Switzerland. School of Materials Science and Engineering, Shandong University, Jinan, 250061, China" |
| ISSN/ISBN: | 2198-3844 (Electronic) 2198-3844 (Linking) |
| Abstract: | "Inspired by the solar-light-driven oxygen transportation in aquatic plants, a biomimetic sustainable light-driven aerogel pump with a surface layer containing black manganese oxide (MnO(2) ) as an optical absorber is developed. The flow intensity of the pumped air is controlled by the pore structure of nanofilbrillated cellulose, urea-modified chitosan, or polymethylsilsesquioxane (PMSQ) aerogels. The MnO(2) -induced photothermal conversion drives both the passive gas flow and the catalytic degradation of volatile organic pollutants. All investigated aerogels demonstrate superior pumping compared to benchmarked Knudsen pump systems, but the inorganic PMSQ aerogels provide the highest flexibility in terms of the input power and photothermal degradation activity. Aerogel light-driven multifunctional gas pumps offer a broad future application potential for gas-sensing devices, air-quality mapping, and air quality control systems" |
| Keywords: | Biomimetics Cellulose/chemistry *Environmental Pollutants *Manganese Compounds Oxides VOCs degradation aerogel manganese oxide passive pump thermal transpiration; |
| Notes: | "MedlineDrdova, Sarka Zhao, Shanyu Giannakou, Marianna Sivaraman, Deeptanshu Guerrero-Alburquerque, Natalia Bonnin, Anne Pauer, Robin Pan, Zhengyuan Billeter, Emanuel Siqueira, Gilberto Zeng, Zhihui Koebel, Matthias M Malfait, Wim J Wang, Jing eng 206021-121306/SNF R'Equip/ 139698/SNF Marie-Heim-Voegtlin/ 10.013/SCIEX CRUS/ 182987/R'Equip Grant/ 172662/SNF/ 179000/SNF/ Center for Filtration Research at University of Minnesota/ Research Support, Non-U.S. Gov't Germany 2022/02/24 Adv Sci (Weinh). 2022 Apr; 9(11):e2105819. doi: 10.1002/advs.202105819. Epub 2022 Feb 23" |
