1. School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
2. School of Materials Science & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, P. R. China
3. Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing 100029, P. R. China
4. Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China
5. School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
6. Institute of Environmental Engineering, ETH Zurich, 8093 Zurich, Switzerland
7. Advanced Analytical Technologies Laboratory, EMPA, Überlandstrase 129, 8600 Dübendorf, Switzerland
8. Department of Mechanical Engineering, University of Minnesota, 111 Church Street SE, Minneapolis, Minnesota 55455, United States