1. College of Textile Engineering, Taiyuan University of Technology, Jinzhong030600, P. R. China
2. State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan030024, P. R. China
3. Key Laboratory of Coal Science and Technology, Ministry of Education, Taiyuan University of Technology, Taiyuan030024, P. R. China
4. Department of Biomedical Sciences, City University of Hong Kong, Kowloon, Hong Kong999077, P. R. China
5. School of Textile and Clothing, Nantong University, Nantong226019, P. R. China
6. Institute of Applied Physics and Materials Engineering, University of Macau, Macau999078, P. R. China
7. College of Chemical Engineering, Fuzhou University, Fuzhou350116, P. R. China