1. School of Textile and Clothing, Nantong University, Nantong 226019, P. R. China
2. Key Laboratory of Coal Science and Technology, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, P. R. China
3. School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong 999077, P. R. China
4. Institute of Applied Physics and Materials Engineering, University of Macau, Macau 999078, P. R. China