1. School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
2. Department of Electronic and Information Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong SAR 999077, China
3. Beijing Building Materials Academy of Sciences Research, Beijing 100041, PR China
4. School of Metallurgy and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China