1. College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
2. The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
3. Institute of Textiles and Clothing, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR