| Autor: |
Wang Y; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China., Villalobos LF; Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA.; Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, USA., Liang L; College of Automation, Hangzhou Dianzi University, Hangzhou 310018, P. R. China., Zhu B; Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi 214122, P. R. China., Li J; Laboratory of Environmental Biotechnology, Jiangsu Engineering Laboratory for Biomass Energy and Carbon Reduction Technology, Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, P. R. China., Chen C; State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, P. R. China., Bai Y; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China., Zhang C; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China., Dong L; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China., An QF; Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemical Engineering, Beijing University of Technology, Beijing 100124, P. R. China., Meng H; State Key Laboratory of Chemistry and Utilization of Carbon-based Energy Resources Institution, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China., Zhao Y; Département de Chimie, Université de Sherbrooke; Sherbrooke, QC J1K 2R1, Canada., Elimelech M; Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA. |
| Abstrakt: |
This study leverages the ancient craft of weaving to prepare membranes that can effectively treat oil/water mixtures, specifically challenging nanoemulsions. Drawing inspiration from the core-shell architecture of spider silk, we have engineered fibers, the fundamental building blocks for weaving membranes, that feature a mechanically robust core for tight weaving, coupled with a CO 2 -responsive shell that allows for on-demand wettability adjustments. Tightly weaving these fibers produces membranes with ideal pores, achieving over 99.6% separation efficiency for nanoemulsions with droplets as small as 20 nm. They offer high flux rates, on-demand self-cleaning, and can switch between sieving oil and water nanodroplets through simple CO 2 /N 2 stimulation. Moreover, weaving can produce sufficiently large membranes (4800 cm 2 ) to assemble a module that exhibits long-term stability and performance, surpassing state-of-the-art technologies for nanoemulsion separations, thus making industrial application a practical reality. |
